公开记录中等
软件健康报告模式 0.27.0 · 指标 1.13.0 · 2026-07-25 07:52 UTC
HdrHistogram / hdrhistogram-go
A pure Go implementation of Gil Tene's HDR Histogram.
HdrHistogram/hdrhistogram-go 的健康指数为 100 分中的 65 分，处于「中等」区间。 其得分最高的类别是Sustainability & Governance（76/100），最低的是AI Readiness（56/100）。 最近一次更新在 17 天前。 近期的大部分工作由 2 位贡献者完成。
65
总分 / 100软件健康指数
指标归入加权类别，统一采用 1–100 量表。总体分先取类别加权平均；当公开证据触发高风险司法辖区政策时，评级会按政策调整，并设置 49（有风险）的上限。AI 就绪度不计入总体分。
65
优秀85-100堪称典范；基本满足所有检验标准
良好70-84健康；仅有轻微不足
中等50-69可接受，但存在明显不足；建议进行审查
存在风险30-49存在重大薄弱环节；采用时应保持审慎
危急1-29问题严重（项目被弃置、仅有单一维护者、缺乏基本工程规范）
评分画像
每条轴代表一个类别。形状比平均值更重要——健康的对象会填满整个图形，而“一峰一谷”式画像意味着某一维度的优势正掩盖另一维度的风险。
所有权
软件包生态系统
| 注册表 | 软件包 | 版本 | 月下载量 | 版本数 | 最近发布 |
|---|---|---|---|---|---|
| Go | github.com/HdrHistogram/hdrhistogram-go | v1.3.0 | - | 8 | 20 天前 |
按类别列示的指标
活力
项目是否仍有生命——是否仍在编写代码，是否仍在发布版本？
65
开发活跃度
53中等
评分方式
| 28.8/36 | 推送新近度 — 最近一次推送于 17 天前 |
| 2.1/36 | 提交节奏 — 52 周中有 3 周有提交 |
| 12.1/18 | 提交量 — 最近一年 21 次提交 |
| 10/10 | OpenSSF Scorecard：Maintained — 17 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 10 |
所用输入
| commits_last_year | 21 |
| human_commit_share | 1 |
| days_since_last_push | 17 |
| active_weeks_last_year | 3 |
发布纪律
84良好
评分方式
| 27/27 | 有发布版本 — 已发布 7 个发布版本 |
| 36/36 | 发布时效 — 最近一次发布版本于 17 天前 |
| 12.6/27 | 发布节奏 — 约每 348.1 天发布一次 |
| 0/10 | OpenSSF Scorecard：Signed-Releases — 无数据 |
所用输入
| releases_count | 7 |
| latest_release_tag | v1.3.0 |
| releases_from_tags | 否 |
| days_since_latest_release | 17 |
| mean_days_between_releases | 348.1 |
已排除计分（无数据或不适用）：OpenSSF Scorecard：Signed-Releases。 其余权重已重新归一化。
社区与采用
项目是否拥有用户、下载量与关注度，并具备欢迎贡献者参与的配置？
58
流行度与采用
65中等
评分方式
| 43.3/60 | 星标 — 467 个星标 |
| 15.1/25 | 复刻 — 66 个复刻 |
| 6.2/15 | 关注者 — 14 位关注者 |
所用输入
| forks | 66 |
| stars | 467 |
| watchers | 14 |
| growth_state | unverified |
| growth_factor_pct | 100 |
| growth_unverified_reason | no_history |
社区健康
50中等
评分方式
| 22.5/22.5 | README |
| 22.5/22.5 | 许可证 — 可识别的许可证（MIT） |
| 0/18 | CONTRIBUTING 指南 |
| 0/13.5 | 行为准则 |
| 0/7.2 | 议题模板 |
| 0/6.3 | PR 模板 |
所用输入
| has_readme | 是 |
| has_license | 是 |
| has_contributing | 否 |
| has_issue_template | 否 |
| has_code_of_conduct | 否 |
| has_pull_request_template | 否 |
可持续性与治理
项目能否在其成员之外延续——巴士系数、响应能力、由谁支持，以及软件包的维护状况？
76
维护者韧性（巴士系数）
64中等
评分方式
| 25.2/54 | 巴士系数 — 2 位贡献者贡献了半数提交 |
| 15.7/22.5 | 提交分布 — 头号贡献者编写了 30% 的提交 |
| 13.5/13.5 | 贡献者广度 — 14 位贡献者 |
| 10/10 | OpenSSF Scorecard：Contributors — project has 9 contributing companies or organizations |
所用输入
| bus_factor | 2 |
| contributors_sampled | 14 |
| top_contributor_share | 0.302 |
议题与 PR 响应能力
87优秀
评分方式
| 36/46.8 | 议题解决 — 77% 的议题已关闭 |
| 35.8/38.3 | PR 接受 — 已裁定的 PR 中 44/47 已合并 |
| 15/15 | OpenSSF Scorecard：Code-Review — all changesets reviewed |
所用输入
| merged_prs | 44 |
| open_issues | 6 |
| closed_issues | 20 |
| issue_closed_ratio | 0.769 |
| closed_unmerged_prs | 3 |
所有权与托管责任
62中等
评分方式
| 30/30 | 所有权背书 — 组织持有 |
| 0/20 | 已验证域名 |
| 11.7/25 | 所有者影响力 — HdrHistogram 有 42 位关注者 |
| 20.3/25 | 既往记录 — 13 个公开仓库，账户约 12 年 |
所用输入
| followers | 42 |
| owner_type | Organization |
| is_verified | — |
| owner_login | HdrHistogram |
| public_repos | 13 |
| account_age_days | 4,568 |
软件包维护
100优秀
评分方式
| 25/25 | 已发布且可解析 — go 上有 1 个软件包 |
| 35/35 | 发布时效 — 最近一次发布于 20 天前 |
| 20/20 | 版本历史 — 8 个已发布版本 |
| 20/20 | 未被弃用 — 活跃，未被弃用或撤回 |
所用输入
| packages | github.com/HdrHistogram/hdrhistogram-go |
| ecosystems | go |
| any_deprecated | 否 |
| min_days_since_publish | 20 |
工程质量
基础的工程与文档实践是否到位？
58
工程实践
64中等
评分方式
| 24/24 | CI 工作流 — 6 个工作流 |
| 24/24 | 存在测试 |
| 0/16 | Linter 配置 |
| 0/9.6 | Pre-commit 钩子 |
| 0/6.4 | .editorconfig |
| 16/20 | OpenSSF Scorecard：CI-Tests — 20 out of 23 merged PRs checked by a CI test -- score normalized to 8 |
所用输入
| has_ci | 是 |
| has_tests | 是 |
| has_editorconfig | 否 |
| has_linter_config | 否 |
| has_precommit_config | 否 |
文档
50中等
评分方式
| 30/30 | README |
| 0/25 | 文档目录 |
| 0/15 | 文档 / 主页站点 |
| 10/10 | 仓库描述 |
| 0/10 | 主题标签 |
| 10/10 | Wiki |
所用输入
| topics | — |
| has_wiki | 是 |
| homepage | — |
| has_readme | 是 |
| has_docs_dir | 否 |
| has_description | 是 |
安全
可见的安全与供应链实践是否稳固，且不存在未解决的高风险司法辖区暴露？
68
安全态势
60中等
评分方式
| 6.8/7.5 | Binary-Artifacts — binaries present in source code |
| 0/7.5 | Branch-Protection — branch protection not enabled on development/release branches |
| 2/2.5 | CI-Tests — 20 out of 23 merged PRs checked by a CI test -- score normalized to 8 |
| 0/2.5 | CII-Best-Practices — no effort to earn an OpenSSF best practices badge detected |
| 7.5/7.5 | Code-Review — all changesets reviewed |
| 2.5/2.5 | Contributors — project has 9 contributing companies or organizations |
| 10/10 | Dangerous-Workflow — no dangerous workflow patterns detected |
| 0/7.5 | Dependency-Update-Tool — no update tool detected |
| 5/5 | Fuzzing — project is fuzzed |
| 2.5/2.5 | 许可证 — license file detected |
| 7.5/7.5 | Maintained — 17 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 10 |
| 0/5 | Packaging — 无数据 |
| 0/5 | Pinned-Dependencies — dependency not pinned by hash detected -- score normalized to 0 |
| 4/5 | SAST — SAST tool detected but not run on all commits |
| 0/5 | Security-Policy — security policy file not detected |
| 0/7.5 | Signed-Releases — 无数据 |
| 0/7.5 | Token-Permissions — detected GitHub workflow tokens with excessive permissions |
| 7.5/7.5 | Vulnerabilities — 0 existing vulnerabilities detected |
所用输入
| source | openssf_scorecard |
| checks_evaluated | 16 |
| scorecard_version | v5.5.0 |
| checks_inconclusive | 2 |
| scorecard_aggregate | 6 |
已排除计分（无数据或不适用）：packaging, signed_releases。 其余权重已重新归一化。
依赖安全公告
100优秀
评分方式
| 35/35 | 直接依赖不含已知公告 — 没有直接依赖携带已知公告 |
| 0/25 | 间接依赖不含已知公告 — 在此范围内，传递依赖集合无法与开发和测试依赖区分 |
| 0/40 | 没有长期未处理的公告 — 没有公告带有发布日期 |
所用输入
| source | osv |
| advisories | 0 |
| affected_packages | 0 |
| assessed_packages | 9 |
| unassessed_packages | 0 |
| affected_by_severity | none |
| direct_affected_packages | 0 |
已排除计分（无数据或不适用）：间接依赖不含已知公告, 没有长期未处理的公告。 其余权重已重新归一化。 已将 9 个已解析依赖与 OSV 比对。 该仓库未发布任何索引可解析的软件包，因此改为评估仓库依赖图。该图将开发与测试版本固定同交付的依赖混在一起，因此仅对声明的运行时依赖计分；传递性发现仅作为背景信息列出，不计入评分。 未对可达性进行分析。
AI 就绪度
该仓库在多大程度上具备与 AI 编码代理协同开发与维护的条件？这是一枚独立的实验性徽章——权重为 0.0，因此单独呈现，不影响总体健康评分。
56
AI 代理上下文与指引
27危急
评分方式
| 0/45 | 代理指令 — 没有 CLAUDE.md / AGENTS.md / 编辑器规则 |
| 0/15 | 机器可读文档（llms.txt） |
| 27.2/40 | 可读的提交历史 — 100 次人类提交中有 51 次说明了意图（结构化标题或解释性正文） |
所用输入
| has_llms_txt | 否 |
| legible_history_share | 0.51 |
| agent_instruction_files | — |
| agent_instruction_max_bytes | — |
评分方式
| 18/18 | 一条命令的引导启动 — Makefile |
| 22/22 | 自动化测试 |
| 0/11 | Lint / 格式化配置 |
| 11/11 | 静态类型检查 — Go（静态类型） |
| 10/10 | 可复现环境 — Dockerfile, lockfile |
| 0/10 | 已体现的代理实践 — 最近 100 次提交中没有代理编写的提交 |
| 0/8 | 自动化维护 — 未观察到自动依赖更新 |
| 0/10 | OpenSSF Scorecard：Pinned-Dependencies — dependency not pinned by hash detected -- score normalized to 0 |
所用输入
| has_nix | 否 |
| has_tests | 是 |
| lockfiles | go.sum |
| has_dockerfile | 是 |
| typed_language | 是 |
| bootstrap_files | Makefile |
| has_devcontainer | 否 |
| has_linter_config | 否 |
| typecheck_configs | — |
| agent_commit_share | 0 |
| toolchain_manifests | go.mod |
| dependency_bot_commit_share | 0 |
面向模型的代码可读性
100优秀
评分方式
| 45/45 | 可类型检查的代码 — Go（静态类型） |
| 55/55 | 可控的文件大小 — 采样的 22 个源文件中有 0 个超过 60KB |
所用输入
| primary_language | Go |
| largest_source_bytes | 32,797 |
| source_files_sampled | 22 |
| oversized_source_files | 0 |
关键数据
467GitHub 星标
14贡献者
21最近 12 个月提交数
17距最近推送天数
7发布版本数
2巴士系数（bus factor）
6开放议题
Go软件包生态系统数
数据采集警告
- Star history unavailable: GitHub GraphQL error: Resource not accessible by personal access token
更多细节
Star 与 Fork 历史 0 ★ / 66 ⇿
0Star
66Fork
6发布
每颗 star 和每个 fork 的添加时间，来自 GitHub 并按天汇总。累计增长位于其构成来源——每日新增——的正上方，二者可相互对照：稳定的自然增长与短暂的突增形态截然不同。当这一差别可被衡量时，它会作为增长真实性予以报告。
主版本 1次版本 2修订 3
每个点涵盖 11 天。
OpenSSF Scorecard 6.0 / 10
6.0综合
来自开源项目 OpenSSF Scorecard 的独立、工具无关的安全评估。每项检查奖励的是安全实践本身，而非特定供应商的工具。Scorecard 无法判定的检查项标记为 不适用，并从安全评分中剔除（绝不按零分计）。
| 9 | Binary-Artifacts | binaries present in source code |
| 0 | Branch-Protection | branch protection not enabled on development/release branches |
| 8 | CI-Tests | 20 out of 23 merged PRs checked by a CI test -- score normalized to 8 |
| 0 | CII-Best-Practices | no effort to earn an OpenSSF best practices badge detected |
| 10 | Code-Review | all changesets reviewed |
| 10 | Contributors | project has 9 contributing companies or organizations |
| 10 | Dangerous-Workflow | no dangerous workflow patterns detected |
| 0 | Dependency-Update-Tool | no update tool detected |
| 10 | Fuzzing | project is fuzzed |
| 10 | License | license file detected |
| 10 | Maintained | 17 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 10 |
| 不适用 | Packaging | packaging workflow not detected |
| 0 | Pinned-Dependencies | dependency not pinned by hash detected -- score normalized to 0 |
| 8 | SAST | SAST tool detected but not run on all commits |
| 0 | Security-Policy | security policy file not detected |
| 不适用 | Signed-Releases | no releases found |
| 0 | Token-Permissions | detected GitHub workflow tokens with excessive permissions |
| 10 | Vulnerabilities | 0 existing vulnerabilities detected |
直接依赖 3
| 注册表 | 软件包 | 版本约束 | 清单文件 |
|---|---|---|---|
| Go | github.com/google/go-cmp | v0.7.0 | go.mod |
| Go | github.com/stretchr/testify | v1.11.1 | go.mod |
| Go | gonum.org/v1/gonum | v0.16.0 | go.mod |
全部依赖 9
来自 GitHub 依赖图的完整解析依赖集合：3 个直接依赖与 6 个间接（传递）软件包。仓库提交锁文件时，传递闭包才是完整的。
| 注册表 | 软件包 | 版本 | 关系 |
|---|---|---|---|
| Go | github.com/google/go-cmp | 0.7.0 | 直接 |
| Go | github.com/stretchr/testify | 1.11.1 | 直接 |
| Go | gonum.org/v1/gonum | 0.16.0 | 直接 |
| Go | github.com/davecgh/go-spew | 1.1.1 | 间接 |
| Go | github.com/kr/pretty | 0.3.1 | 间接 |
| Go | github.com/pmezard/go-difflib | 1.0.0 | 间接 |
| Go | github.com/rogpeppe/go-internal | 1.14.1 | 间接 |
| Go | gopkg.in/check.v1 | 1.0.0-20201130134442-10cb98267c6c | 间接 |
| Go | gopkg.in/yaml.v3 | 3.0.1 | 间接 |
依赖安全公告 0
该仓库未发布可被索引解析的包，因此评估的是其自身的依赖图——共 9 个包，其中也包含从不交付的开发与测试版本固定：0 个存在已知公告，0 个为直接依赖。
没有已知公告影响已评估的依赖。
公告表示依赖图中记录的版本落入某条公告的受影响范围。可达性未经分析，且依赖图包含开发与测试的版本固定——某项发现可能只涉及工具链而非交付的软件。
原始 JSON 报告 机器可读
{
"data": {
"repo": {
"topics": [],
"is_fork": false,
"size_kb": 14305,
"has_wiki": true,
"homepage": null,
"languages": {
"Go": 129665,
"Shell": 1622,
"Makefile": 1366,
"Dockerfile": 137
},
"pushed_at": "2026-07-07T13:04:24Z",
"created_at": "2014-07-14T00:27:16Z",
"owner_type": "Organization",
"updated_at": "2026-07-04T12:34:10Z",
"description": "A pure Go implementation of Gil Tene's HDR Histogram.",
"is_archived": false,
"is_disabled": false,
"license_spdx": "MIT",
"default_branch": "master",
"license_spdx_raw": "MIT",
"primary_language": "Go",
"significant_languages": [
"Go"
]
},
"owner": {
"blog": null,
"name": null,
"type": "Organization",
"login": "HdrHistogram",
"company": null,
"location": null,
"followers": 42,
"avatar_url": "https://avatars.githubusercontent.com/u/6456658?v=4",
"created_at": "2014-01-21T03:18:59Z",
"is_verified": null,
"public_repos": 13,
"account_age_days": 4568
},
"license": {
"state": "standard",
"spdx_id": "MIT",
"raw_spdx": "MIT",
"file_present": true,
"scorecard_found": true,
"profile_has_license": true
},
"activity": {
"releases": [
{
"tag": "v1.3.0",
"kind": "minor",
"published_at": "2026-07-07T13:04:25Z"
},
{
"tag": "v1.2.0",
"kind": "minor",
"published_at": "2025-11-10T00:00:02Z"
},
{
"tag": "v1.1.2",
"kind": "patch",
"published_at": "2021-08-24T21:10:27Z"
},
{
"tag": "v1.1.1",
"kind": "patch",
"published_at": "2021-08-17T22:11:29Z"
},
{
"tag": "v1.1.0",
"kind": "minor",
"published_at": "2021-03-09T20:40:52Z"
},
{
"tag": "v1.0.1",
"kind": "patch",
"published_at": "2020-11-25T21:22:50Z"
},
{
"tag": "v1.0.0",
"kind": "major",
"published_at": "2020-10-17T20:33:46Z"
}
],
"recent_commits": [
{
"oid": "0500d8c71ec849a63147b0703f7932fbe04b79d7",
"body": "…-time casing (#66)\n\n* fix silent correctness/interop bugs: Mean overflow, offset, base-time casing\n\nThree defects surfaced by a deep audit, each with a regression test:\n\n- Mean() computed the int64 product count*value BEFORE the float64 cast, so large\n counts/values (product > ~9.2e18) wrapped and\n[…]\npended on TZ (e.g. failing under\nTZ=America/Santo_Domingo where 1000ms since epoch renders as the previous local date).\nFormat in UTC for a stable, timezone-independent line. Regression test included.",
"is_bot": false,
"headline": "fix silent correctness/interop bugs: Mean overflow, wire offset, base…",
"author_name": "Filipe Oliveira (Redis)",
"author_login": "fcostaoliveira",
"committed_at": "2026-07-04T12:34:05Z",
"body_truncated": true,
"is_coding_agent": false
},
{
"oid": "cda93cfebafea917e7c947c3adff2f497441ce46",
"body": "…ross all APIs (#68)\n\n* percentile: reach at least the first recorded entry across all three APIs\n\nApply the reference max(countAtPercentile, 1) rule to ValueAtPercentile,\nValueAtPercentiles, and ValueAtPercentilesSlice together. Without it, low percentiles\nof a small histogram round the target coun\n[…]\na negative percentile\nwhile ValueAtPercentile / ValueAtPercentiles return its lowest-equivalent\n(the 0th percentile). Asserts single == map == slice for -1/-0.0001/-100\non New(1,...) and New(100,...).",
"is_bot": false,
"headline": "percentile: reach the first recorded entry (0th percentile == min) ac…",
"author_name": "Filipe Oliveira (Redis)",
"author_login": "fcostaoliveira",
"committed_at": "2026-07-04T12:33:53Z",
"body_truncated": true,
"is_coding_agent": false
},
{
"oid": "a62267c371b8c19732c43cd9021e6bea3df304be",
"body": "bufio.Reader.ReadString returns the buffered final line together with\nio.EOF. decodeNextIntervalHistogram broke immediately on io.EOF, so an\ninterval line without a trailing newline was silently dropped. Process\nthe buffered line before terminating; the follow-up read returns\n(\"\", io.EOF) and ends t\n[…]\nds TestHistogramLogReader_finalLineNoTrailingNewline: writes 3\nintervals, strips the trailing newline, and asserts all 3 are still\nread and the last decodes identically to the newline-terminated read.",
"is_bot": false,
"headline": "fix(log): decode final interval line lacking a trailing newline (#72)",
"author_name": "Filipe Oliveira (Redis)",
"author_login": "fcostaoliveira",
"committed_at": "2026-07-04T09:40:30Z",
"body_truncated": true,
"is_coding_agent": false
},
{
"oid": "112d1637bfe1cbedf9cbe597bfc9cab7eb726e3a",
"body": "RecordValues(v, n) with n < 0 silently ran counts[idx] += n and\ntotalCount += n, driving both negative and corrupting every subsequent\npercentile/mean/distribution query (e.g. RecordValues(50, -5) on a\nhistogram holding one sample leaves TotalCount == -4).\n\nReject a negative n with an error, consist\n[…]\n. The check is a\npredicted-not-taken branch on the write hot path with no measurable\nthroughput impact (BenchmarkHistogramRecordValue ~3.2 ns/op unchanged).\n\nAdds TestRecordValuesRejectsNegativeCount.",
"is_bot": false,
"headline": "fix: reject a negative count in RecordValues (#74)",
"author_name": "Filipe Oliveira (Redis)",
"author_login": "fcostaoliveira",
"committed_at": "2026-07-04T08:11:00Z",
"body_truncated": true,
"is_coding_agent": false
},
{
"oid": "1639bc976872212c4b1a70cf06311d563a7b529e",
"body": "TestHistogramLogReader_logV2 and _tagged_log previously asserted only\nerr==nil and NotNil per interval, and under-drained the jHiccup fixture\n(61 of 62 intervals). Pin interval 0's decoded contents (TotalCount,\nStart/EndTimeMs, Max, p50, p99) and assert the full drained interval\ncount (62 and 42), so a regression in the reader or the V2 decoder is\ncaught rather than silently returning a wrong-but-non-nil histogram.\n\nTest-only; no source change.",
"is_bot": false,
"headline": "test(log): pin golden values for the logV2 reader fixtures (#73)",
"author_name": "Filipe Oliveira (Redis)",
"author_login": "fcostaoliveira",
"committed_at": "2026-07-04T08:10:16Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "3c4a3c10c8935b4b7dadb8d66f8ae2b6ed33febb",
"body": "Two ValueAtPercentile benchmarks ran a loop 'for i := range make([]float64, b.N) {\ndata[i] = rand.Float64()*100 }' that (a) filled data (unused) instead of the intended\nquantiles, and (b) indexed a fixed 1e6-element slice b.N times, panicking with index\nout of range once b.N exceeded 1e6 (e.g. go test -bench . -benchtime=2000000x). The\nloop was dead — the benchmarks query a fixed percentile set — so remove it and drop the\nunused slices. Now runs at b.N=2e6+ cleanly.",
"is_bot": false,
"headline": "bench: remove dead fill loop that panics for b.N > 1e6 (#70)",
"author_name": "Filipe Oliveira (Redis)",
"author_login": "fcostaoliveira",
"committed_at": "2026-07-04T08:09:48Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "a3c9d0bbca96639e3f8f54d8abb4bf6cf54a9955",
"body": "…ed-value + merge edges (#71)\n\nTest-only additions lifting coverage 85.9% -> 87.8% on risk-bearing paths that had none:\n- TestZigZagAllByteLengths: every 1..9-byte rung of the LEB128 encoder + round-trip\n (zig_zag_encode_i64 now 100%).\n- TestNewMaxRangeOverflowGuard: New(1, MaxInt64, 3) exercises g\n[…]\nerror path for an out-of-range corrected value.\n- TestMergeReportsDropped: Merge returns the count dropped when the destination range is\n narrower than the source (Merge now 100%).\nNo source changes.",
"is_bot": false,
"headline": "test: cover zigzag byte-length ladder, bucket overflow guard, correct…",
"author_name": "Filipe Oliveira (Redis)",
"author_login": "fcostaoliveira",
"committed_at": "2026-07-04T08:09:39Z",
"body_truncated": true,
"is_coding_agent": false
},
{
"oid": "1e77ae969583e5219016120015bd45ae94c04ac5",
"body": "Reset is documented to restore the histogram to its original state, but it only zeroed\ntotalCount and counts[], leaving a stale tag/startTimeMs/endTimeMs from a previous\ninterval. Clear them too (matching New()'s initialization). Regression test included.",
"is_bot": false,
"headline": "Reset: clear tag and start/end time, not just counts (#69)",
"author_name": "Filipe Oliveira (Redis)",
"author_login": "fcostaoliveira",
"committed_at": "2026-07-04T08:09:06Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "c1a9402207a8a9d8c06df0a6ad19388784b7a240",
"body": "… (#65)\n\n* harden Decode/log-reader against malformed input + add native fuzzing\n\nA deep audit (and now these fuzz targets) found the public Decode() and interval-log\nreader panic on malformed/untrusted input. Decode ingests base64/zlib bytes from log\nfiles and the network, so these are remote-DoS-c\n[…]\ngeMetamorphic: Merge two histograms — no panic, count conservation, invariants.\n\nWired all four into the ClusterFuzzLite build and the fuzz-smoke CI matrix. Each runs\nclean for millions of executions.",
"is_bot": false,
"headline": "harden Decode/log-reader against malformed input + add native fuzzing…",
"author_name": "Filipe Oliveira (Redis)",
"author_login": "fcostaoliveira",
"committed_at": "2026-07-04T08:08:36Z",
"body_truncated": true,
"is_coding_agent": false
},
{
"oid": "8d7857520556c93d38b1bfb13bd1f590241ddd2a",
"body": "…lamp, map phantom key (#67)\n\n* fix percentile clamping contracts: negative clamp + map phantom key\n\nTwo edge-case contract bugs in the percentile APIs (the class @dkropachev found in\nValueAtPercentilesSlice), making the three variants consistent:\n\n- ValueAtPercentile clamped only >100, not <0. A ne\n[…]\ne histogram stay within [Min, Max] for both APIs.\n\n* Revert \"percentile: reach at least the first recorded entry (0th percentile == min)\"\n\nThis reverts commit 1b895ea211776e82d360c0ca050922311814c95d.",
"is_bot": false,
"headline": "fix percentile edge-case contracts: empty histogram (#60), negative c…",
"author_name": "Filipe Oliveira (Redis)",
"author_login": "fcostaoliveira",
"committed_at": "2026-07-04T08:08:24Z",
"body_truncated": true,
"is_coding_agent": false
},
{
"oid": "b00adb186cf858069a092aa39e0a4608b6324f72",
"body": "…eck elision (+5%) (#64)\n\n* perf: blocked prefix-sum skip-scan + write-path bounds-check elision\n\nRead path (getValueFromIdxUpToCount): sum counts[] in blocks of 8 with independent\naccumulators (no loop-carried dependency, one branch per block), skipping whole\nblocks that cannot reach the target and\n[…]\nto 0 when building the targets, and take the lowest-equivalent branch for any\npercentile <= 0. Adds a regression test over New(100, ...) asserting negative/zero\npercentiles equal ValueAtPercentile(0).",
"is_bot": false,
"headline": "perf: blocked prefix-sum skip-scan (+50% read) + write-path bounds-ch…",
"author_name": "Filipe Oliveira (Redis)",
"author_login": "fcostaoliveira",
"committed_at": "2026-07-03T12:58:53Z",
"body_truncated": true,
"is_coding_agent": false
},
{
"oid": "ebe230317761c0d1fbd1b2e41a2f531f6827173b",
"body": "…cks (#62)\n\ngetValueFromIdxUpToCount (ValueAtPercentile) and the ValueAtPercentiles batch scan iterated\nwith an int index and read counts[idx], which Go bounds-checks every element. Iterating with\n'for idx, c := range h.counts' provides the element directly (len==countsLen), so the compiler\nelides the per-element bounds check on the hot prefix-sum loop. Results unchanged.\n\nCo-authored-by: Filipe Oliveira <oly@codeperf.io>",
"is_bot": false,
"headline": "perf: range over counts[] in the percentile scans to elide bounds che…",
"author_name": "Filipe Oliveira (Redis)",
"author_login": "fcostaoliveira",
"committed_at": "2026-07-03T09:03:36Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "6b5dd0d3cca2b2619b2dd9280fef363d73e97eb7",
"body": "…rder (#63)\n\nAdd a batch percentile query that writes to a []int64 in input order instead of allocating a\nmap[float64]int64 and hashing float64 keys per call. Resolves in ascending target order via a\npermutation (input order + duplicates preserved), tight hoisted-target range-loop scan, no input\nmutation. Same values as ValueAtPercentiles/ValueAtPercentile (verified across unsorted/dup/empty/\np0/p100).\n\nCo-authored-by: Filipe Oliveira <oly@codeperf.io>",
"is_bot": false,
"headline": "feat: ValueAtPercentilesSlice — []int64 batch (no map alloc), input o…",
"author_name": "Filipe Oliveira (Redis)",
"author_login": "fcostaoliveira",
"committed_at": "2026-07-03T09:03:15Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "22a1b78b53d2dff44368b7bca4d11c59f58e8b57",
"body": "* perf: flat counts[] scan in getValueFromIdxUpToCount (ValueAtPercentile)\n\ngetValueFromIdxUpToCount walked the logical bucket/sub-bucket structure, recomputing\nsubBucketIdx/bucketIdx and the value on every element. The walk visits exactly the flat\ncounts[] indices in order, so replace it with a tig\n[…]\n loop in getValueFromIdxUpToCount that the flat-scan\nchange replaced; leaving it defined trips golangci-lint's unused (U1000) and reds CI.\n\n---------\n\nCo-authored-by: Filipe Oliveira <oly@codeperf.io>",
"is_bot": false,
"headline": "perf: flat counts[] scan in ValueAtPercentile (+133%) (#57)",
"author_name": "Filipe Oliveira (Redis)",
"author_login": "fcostaoliveira",
"committed_at": "2026-07-02T19:59:22Z",
"body_truncated": true,
"is_coding_agent": false
},
{
"oid": "bbda977987daf8ea6f7d1294cdc6231df5676d18",
"body": "* perf: flat counts[] scan in getValueFromIdxUpToCount (ValueAtPercentile)\n\ngetValueFromIdxUpToCount walked the logical bucket/sub-bucket structure, recomputing\nsubBucketIdx/bucketIdx and the value on every element. The walk visits exactly the flat\ncounts[] indices in order, so replace it with a tig\n[…]\nead of the documented 0's. Restore the contract with an explicit totalCount==0 guard;\nadd a regression test with lowestDiscernibleValue>1.\n\n---------\n\nCo-authored-by: Filipe Oliveira <oly@codeperf.io>",
"is_bot": false,
"headline": "perf: flat counts[] scan in ValueAtPercentiles (batch, +303%) (#58)",
"author_name": "Filipe Oliveira (Redis)",
"author_login": "fcostaoliveira",
"committed_at": "2026-07-02T19:59:04Z",
"body_truncated": true,
"is_coding_agent": false
},
{
"oid": "37ca6172913d82d58c1fa449bcd3ca3d81080117",
"body": "Replace 'idx < 0 || int(h.countsLen) <= idx' with 'uint(idx) >= uint(h.countsLen)':\na negative idx wraps to a large unsigned value and is caught by the same bound, so one\nunsigned comparison replaces two signed ones on the record hot path. (Port of the C\nHdrHistogram_c #136 change.)\n\nCo-authored-by: Filipe Oliveira <oly@codeperf.io>",
"is_bot": false,
"headline": "perf: single unsigned bounds check in RecordValues (#59)",
"author_name": "Filipe Oliveira (Redis)",
"author_login": "fcostaoliveira",
"committed_at": "2026-07-02T13:27:10Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "b2087ec37ab3239ce1edfb9c2a1282fd2be259ab",
"body": "Co-authored-by: Ben Morgan <neembi@gmail.com>",
"is_bot": false,
"headline": "Make it harder for Mean() and StdDev() to overflow (#21)",
"author_name": "Ben Morgan",
"author_login": "cassava",
"committed_at": "2026-07-02T12:27:31Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "7de3c9914a362c151894c1f83023a0e6e7c4f6ac",
"body": "* Fix HistogramLogWriter.OutputStartTime\n\nIt should multiply it by 1e6 not 1e9\n\n* Only triggering fmt when needed\n\n* reverted make changes\n\n* Only triggering fmt when needed\n\n---------\n\nCo-authored-by: fcostaoliveira <filipe@redis.com>",
"is_bot": false,
"headline": "Fix HistogramLogWriter.OutputStartTime nanosecond conversion (#54)",
"author_name": "Dmitry Kropachev",
"author_login": "dkropachev",
"committed_at": "2025-11-09T23:49:37Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "375461c446662ce3e571c7a54dc16f4d272b5f79",
"body": "* Update golang to 1.23\n\n* Download concrete version of golangci\n\ngolangci is hard to compile now.\nLet's just download it and use concrete version of it.\n\n* Address linter complaints\n\n* Updated both lint and fmt targets to use the full path to golangci-lint\n\n* explicit toolchain go1.23.0\n\n* use Download concrete version of golangci codeblock from dkropachev. fixed identiefied missing linter issue\n\n---------\n\nCo-authored-by: fcostaoliveira <filipe@redis.com>",
"is_bot": false,
"headline": "Update to Go 1.23, modernize dependencies, and fix linter issues (#55)",
"author_name": "Dmitry Kropachev",
"author_login": "dkropachev",
"committed_at": "2025-11-09T23:30:05Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "c035224a1ba7982e1a7ea1469f35bc31d47514af",
"body": "Fixes two bugs in the histogram log writer's timestamp handling:\n\n Incorrect time unit: Start time and interval were written in milliseconds instead of seconds\n Wrong field: End time was written instead of interval duration\n\nThis PR adds test coverage to verify that StartTimeMs and EndTimeMs are correctly preserved during histogram serialization and deserialization.\n\n\nCo-authored-by: fcostaoliveira <filipe@redis.com>",
"is_bot": false,
"headline": "[fix] Log writer writes time wrong (#51)",
"author_name": "Dmitry Kropachev",
"author_login": "dkropachev",
"committed_at": "2025-11-09T22:26:52Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "474b196fd6dc24f6bc303ab8de9cba97a0112d58",
"body": "Update Go version from 1.14 to 1.21 and fix CI build failures caused by\nincompatible golangci-lint version requirements.\n\nChanges:\n\n Update go.mod to Go 1.21 (from 1.14)\n Pin golangci-lint to v1.59.0 (compatible with Go 1.21)\n Replace deprecated io/ioutil with io and os packages (Go 1.19+ r\n[…]\nng code\n\nGithub actions version change:\n\n actions/setup-go -> v6\n actions/checkout -> v5\n codecov/codecov-action -> v4\n release-drafter/release-drafter -> v5\n github/codeql-action -> v4",
"is_bot": false,
"headline": "Modernize Go toolchain and CI GH actions (#53)",
"author_name": "Dmitry Kropachev",
"author_login": "dkropachev",
"committed_at": "2025-11-09T22:19:34Z",
"body_truncated": true,
"is_coding_agent": false
},
{
"oid": "494271c4c016b36c8cee88480288f33b419cf7b0",
"body": "`ValueAtPercentile()` 4.5X on-cpu time optimization: remove expensive condition checks and re-use computation on hotpaths",
"is_bot": false,
"headline": "Merge pull request #48 from HdrHistogram/percentile.opt",
"author_name": "filipe oliveira",
"author_login": "filipecosta90",
"committed_at": "2021-08-24T17:39:36Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "8dc009253bad990ab770ef8994ac209d23878588",
"body": "… getValueFromIdxUpToCount()",
"is_bot": false,
"headline": "[fix] Fixes per PR review: avoid initializing vars to it's default on…",
"author_name": "filipecosta90",
"author_login": "filipecosta90",
"committed_at": "2021-08-24T15:07:33Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "a0ace6b51c103cda8709b9776a4e96b8d806b088",
"body": null,
"is_bot": false,
"headline": "[fix] Fixed linter errors",
"author_name": "filipecosta90",
"author_login": "filipecosta90",
"committed_at": "2021-08-22T23:18:19Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "8e01ef158f91b0bcaa777c3a5d733f601cc7c7a3",
"body": "…alueAtPercentile",
"is_bot": false,
"headline": "[fix] Avoid extremelly large slices of results on BenchmarkHistogramV…",
"author_name": "filipecosta90",
"author_login": "filipecosta90",
"committed_at": "2021-08-22T22:26:14Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "e0e392b1e231cfe075557671237fea18d8fbed85",
"body": "…omIdxUpToCount()",
"is_bot": false,
"headline": "[opt] moved optimization code for ValueAtPercentile() into getValueFr…",
"author_name": "filipecosta90",
"author_login": "filipecosta90",
"committed_at": "2021-08-22T22:04:38Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "cff480e6af3c5fce872a39cb5e2bfadbc6cbe1e1",
"body": null,
"is_bot": false,
"headline": "[add] using getBucketBaseIdx to optimize further ValueAtPercentile",
"author_name": "filipecosta90",
"author_login": "filipecosta90",
"committed_at": "2021-08-22T00:59:55Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "716f741fbbea4954335ef3654e7d602135bc6529",
"body": null,
"is_bot": false,
"headline": "[wip] iterative ValueAtPercentile",
"author_name": "filipecosta90",
"author_login": "filipecosta90",
"committed_at": "2021-08-22T00:41:01Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "0bda2d6b6efbcf3b0f41d0a93d2277a463b61617",
"body": null,
"is_bot": false,
"headline": "[wip] WIP on percentile calculation",
"author_name": "filipecosta90",
"author_login": "filipecosta90",
"committed_at": "2021-08-22T00:12:50Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "7a2c58a8aa49eb4678865f928a7e6e8b6b5aadc9",
"body": "Create codeql-analysis.yml",
"is_bot": false,
"headline": "Merge pull request #47 from HdrHistogram/codeql",
"author_name": "filipe oliveira",
"author_login": "filipecosta90",
"committed_at": "2021-08-20T15:09:49Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "82c7c9c11096e312330c84f1426dcde64347c06c",
"body": null,
"is_bot": false,
"headline": "Create codeql-analysis.yml",
"author_name": "filipe oliveira",
"author_login": "filipecosta90",
"committed_at": "2021-08-19T22:08:26Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "fa0332a00ec13b10b21c07328f45ebd57fcd5f54",
"body": "[perf] optimize ValueAtPercentile(s): introduce nextCountAtIdx() and reduce by 25.6% the on-cpu usage",
"is_bot": false,
"headline": "Merge pull request #46 from HdrHistogram/cpu.optimize.nextCountAtIdx",
"author_name": "filipe oliveira",
"author_login": "filipecosta90",
"committed_at": "2021-08-16T07:20:48Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "164c49c9052f01d5e8e509c2b1dbe9945817610f",
"body": "…only update the iterator highestEquivalentValue when required in order to reduce wastfull cpu usage",
"is_bot": false,
"headline": "[perf] optimize ValueAtPercentile(s): introduce nextCountAtIdx() and …",
"author_name": "filipecosta90",
"author_login": "filipecosta90",
"committed_at": "2021-08-15T17:33:29Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "35c7773a578afd4d829aa360ca81afded5c11112",
"body": "Optimized nextNonEquivalentValue(), and consequently ValueAtPercentile, ValueAtPercentiles...",
"is_bot": false,
"headline": "Merge pull request #45 from HdrHistogram/optimizations.for.percentile",
"author_name": "filipe oliveira",
"author_login": "filipecosta90",
"committed_at": "2021-03-05T17:31:42Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "6577d04e2d1aca01f609309c690f795531e0e66c",
"body": "…centile, ValueAtPercentiles...",
"is_bot": false,
"headline": "[add] Optimized nextNonEquivalentValue(), and consequently ValueAtPer…",
"author_name": "filipecosta90",
"author_login": "filipecosta90",
"committed_at": "2021-02-13T23:09:16Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "542356bde5dd3d8306342d051e0afc31d5288edb",
"body": null,
"is_bot": false,
"headline": "[fix] Fixes per PR review: added out of range percentiles",
"author_name": "filipecosta90",
"author_login": "filipecosta90",
"committed_at": "2021-02-08T20:09:58Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "a46d827c2e22faa4c8a316c67174e4ad90abb5d1",
"body": "…given by the same counts array position",
"is_bot": false,
"headline": "[fix] Fixed ValueAtPercentiles() computation of percentiles that are …",
"author_name": "filipecosta90",
"author_login": "filipecosta90",
"committed_at": "2021-02-07T13:58:39Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "dbdd15f52e516a670fbdd8302c3a2aecec609325",
"body": "…ntiles()",
"is_bot": false,
"headline": "[fix] Fixes per PR review: added ValueAtPercentile() and ValueAtPerce…",
"author_name": "filipecosta90",
"author_login": "filipecosta90",
"committed_at": "2021-02-06T22:54:09Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "1ebc3c3fd53ba0b409d4995a4db7656f74f405e7",
"body": "…n Go",
"is_bot": false,
"headline": "[fix] Fixed testing to only used the two major releases of go still i…",
"author_name": "filipecosta90",
"author_login": "filipecosta90",
"committed_at": "2021-01-31T21:40:37Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "789681ed7d5e951b241682fcedf1fad98edc98cb",
"body": null,
"is_bot": false,
"headline": "[fix] setting go version to 1.11 in go.mod",
"author_name": "filipecosta90",
"author_login": "filipecosta90",
"committed_at": "2021-01-31T21:21:58Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "607206b9711a07aa15478af9042687dd1df3be40",
"body": "…ntiles()",
"is_bot": false,
"headline": "[fix] Fixes per PR review: renamed ValueAtPercentiles() to ValueAtQua…",
"author_name": "filipecosta90",
"author_login": "filipecosta90",
"committed_at": "2021-01-31T20:48:17Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "34bdf9c20dc67847ab3271c4e73c3ad278a3cfbe",
"body": "… to ValueAtQuantile()",
"is_bot": false,
"headline": "[add] Added ValueAtPercentiles() as an optimization to multiple calls…",
"author_name": "filipecosta90",
"author_login": "filipecosta90",
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"headline": "[add] Triggering coverage test on push/pull_request to repo. Included…",
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"oid": "1dc8842b4cdec087802596e0a47013a564bf6730",
"body": "…nt() (#39)\n\n* [add] Extended docs regarding ValueAtQuantile() and added ValuesAreEquivalent()\r\n\r\n* [add] made New() documentation clearer\r\n\r\n* [fix] Fixes per PR review on New()\r\n\r\n* [fix] Fixed New() not to panic on numberOfSignificantValueDigits < 1 || numberOfSignificantValueDigits > 5. Adding linter check to CI\r\n\r\n* [add] Added whitebox testing for hdr.go ( specifically for New() numberOfSignificantValueDigits limits ).",
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"headline": "Extended docs regarding ValueAtQuantile() and added ValuesAreEquivale…",
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"committed_at": "2020-11-24T15:52:56Z",
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"oid": "6663c35e929d61035c6994625c819ae80c21e2b0",
"body": "…on.error\n\nFixed TestMean and TestStdDev to follow expected max value quantization error given sigfigs",
"is_bot": false,
"headline": "Merge pull request #40 from HdrHistogram/tests.mean.stddev.quantizati…",
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"committed_at": "2020-11-23T09:06:26Z",
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"oid": "1abae64570567a09e34a8b129910a8e7b2499929",
"body": "Added release drafter automation",
"is_bot": false,
"headline": "Merge pull request #41 from HdrHistogram/release.drafter",
"author_name": "filipe oliveira",
"author_login": "filipecosta90",
"committed_at": "2020-11-23T09:05:42Z",
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"headline": "[add] Added release drafter automation",
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"oid": "d5c300a25eb8f4cfef1aacc1e24949612cd87e57",
"body": "…tization error given sigfigs",
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"headline": "[fix] Fixed TestMean and TestStdDev to follow expected max value quan…",
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{
"oid": "20a94f2ac2a0159331e1e61a0e0967208bbbcb32",
"body": "* [add] V2 HdrHistogram Log format (v1.3)\r\n\r\n* [fix] Added nolint to the examples\r\n\r\n* [fix] Fixed error message typo on minimum length on bytes for 7,8,and 9 bytelen\r\n\r\n* [fix] Fixed ExampleHistogram_PercentilesPrint",
"is_bot": false,
"headline": "V2 HdrHistogram Log format (v1.3) (#35)",
"author_name": "filipe oliveira",
"author_login": "filipecosta90",
"committed_at": "2020-10-17T14:47:29Z",
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{
"oid": "aada4ab574eab88903812f25a3b45d3dcfe7d526",
"body": "* [wip] Wip on enabling output textual percentile distribution\r\n\r\n* [add] Added example for printing of the percentile output format\r\n\r\n* [add] printing +Inf within Inverted Percentile in the same format as the Java implementation",
"is_bot": false,
"headline": "Enable percentile output format (#38)",
"author_name": "filipe oliveira",
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"committed_at": "2020-10-06T15:54:29Z",
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{
"oid": "311d303ffd48e5202a1fff20f9c1dc55bac79fd9",
"body": "* [wip] Wip on V2 compressed encoding. Currently with differences on decode->encode histograms from other implementations\r\n\r\n* [wip] Wip on V2 compressed encoding. Currently with differences on decode->encode histograms from other implementations\r\n\r\n* [fix] Fix per PR review signature of getIntegerToDoubleValueConversionRatio() float64\r\n\r\n* [add] Added Dump Load Merge test",
"is_bot": false,
"headline": "Compressed histogram V2 support (#31)",
"author_name": "filipe oliveira",
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"committed_at": "2020-09-27T07:06:51Z",
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"oid": "185cb5ac2df8b65cc8e9452d62728d4c6b1c36f0",
"body": "…structions, and fix instructions (#34)\n\n* [add] Updated Readme with the proper badges, documentation link, and install instructions\r\n\r\n* [add] Made reference to issue and fix on documentation\r\n\r\n* [fix] Fixes per PR review. Updated doc links",
"is_bot": false,
"headline": "Updated Readme with the proper badges, documentation link, install in…",
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"headline": "Update README.md",
"author_name": "Alec",
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"headline": "Update README.md",
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"headline": "Update README.md",
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"committed_at": "2020-09-19T14:59:31Z",
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{
"oid": "bb05e18a12a6cbbdc359532a2f3c93d32f913404",
"body": "…ds. Testing go version 1.11 to 1.15 (#29)\n\n* Moved histogram reference to HdrHistogram/hdrhistogram-go. Make usage of Go modules. Testing for go version 1.11 to 1.15\r\n\r\n* [fix] Removed fmt check for now on CI",
"is_bot": false,
"headline": "Rely on Go Modules to ensure package dependencies and replicable buil…",
"author_name": "filipe oliveira",
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"body_truncated": false,
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{
"oid": "3a0bb77429bd3a61596f5e8a3172445844342120",
"body": "Make a copy in Histogram export",
"is_bot": false,
"headline": "Merge pull request #22 from tschottdorf/race",
"author_name": "Coda Hale",
"author_login": "codahale",
"committed_at": "2016-10-10T02:54:55Z",
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},
{
"oid": "60d1dd1881122f2cab5a03e8bcb6f97477d17753",
"body": "The caller expects the snapshot to be their own, but the previous\ncode was passing out the internal state, which meant all uses of\nthe method were inherently racy.",
"is_bot": false,
"headline": "Make a copy in Histogram export",
"author_name": "Tobias Schottdorf",
"author_login": "tbg",
"committed_at": "2016-10-07T13:45:52Z",
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},
{
"oid": "f8ad88b59a584afeee9d334eff879b104439117b",
"body": "Closes #18.",
"is_bot": false,
"headline": "Update Travis config.",
"author_name": "Coda Hale",
"author_login": "codahale",
"committed_at": "2016-04-25T23:16:09Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "360314142131c2043d1346f197f86435b287c6da",
"body": "Expose various constants used to create the histogram",
"is_bot": false,
"headline": "Merge pull request #17 from sean-/expose-ctor-constants",
"author_name": "Coda Hale",
"author_login": "codahale",
"committed_at": "2016-03-25T22:32:16Z",
"body_truncated": false,
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},
{
"oid": "5ab7de93099981e61bc9a0653c17a85594cd395d",
"body": "When embedding Histogram, it is useful to expose the constants used to create the histogram so that a histogram manager does not have to store duplicate copies of these values.",
"is_bot": false,
"headline": "Expose various constants used to create the histogram",
"author_name": "Sean Chittenden",
"author_login": "sean-",
"committed_at": "2016-03-25T18:33:55Z",
"body_truncated": false,
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},
{
"oid": "e88be87d51429689cef99043a54150d733265cd7",
"body": "Added Test for Distribution",
"is_bot": false,
"headline": "Merge pull request #16 from adrianco/master",
"author_name": "Coda Hale",
"author_login": "codahale",
"committed_at": "2016-02-14T17:16:03Z",
"body_truncated": false,
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},
{
"oid": "c1508303bac894ea8eaff004b234ca9d3a13a501",
"body": "Catchup",
"is_bot": false,
"headline": "Update to master",
"author_name": "Adrian Cockcroft",
"author_login": "adrianco",
"committed_at": "2016-02-13T16:01:50Z",
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{
"oid": "9e41cc93350bb6167c59cb3d69269693007ffa78",
"body": "# Conflicts:\n#\thdr_test.go",
"is_bot": false,
"headline": "Fixed conflict",
"author_name": "Adrian Cockcroft",
"author_login": "adrianco",
"committed_at": "2016-02-13T15:57:21Z",
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},
{
"oid": "2637a316b0b3797dfc3cb99273e1e954ad23f4ac",
"body": "Line wrap bug was introduced in last update.",
"is_bot": false,
"headline": "Fixed line wrap",
"author_name": "Adrian Cockcroft",
"author_login": "adrianco",
"committed_at": "2016-02-01T01:21:26Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "02e370cd169d325fa84555c6476951259b418c41",
"body": "Check that Distribution dump has correct length and content.",
"is_bot": false,
"headline": "Added Test for Distribution",
"author_name": "Adrian Cockcroft",
"author_login": "adrianco",
"committed_at": "2016-01-31T21:39:24Z",
"body_truncated": false,
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},
{
"oid": "2da969979c0dd5cda296463b05293e775bc3b5be",
"body": "Max bugfix",
"is_bot": false,
"headline": "Merge pull request #15 from adrianco/master",
"author_name": "Coda Hale",
"author_login": "codahale",
"committed_at": "2016-01-31T19:50:05Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "110fb3762de3a01850603d7d4f3505da8280f586",
"body": "Since max value in histogram is 999999 it’s wrong to return lower bound\nof bucket=999936 as max value estimate, 1000447 is upper bound of\nbucket and is greater than 999999.",
"is_bot": false,
"headline": "Fixed test of max",
"author_name": "Adrian Cockcroft",
"author_login": "adrianco",
"committed_at": "2016-01-31T19:43:37Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "da946d2b9588f5e72ef97c6359d530df8cac50b1",
"body": "Max needs to return the upper bound of the top bucket to be more than\nthe actual maximum value seen.",
"is_bot": false,
"headline": "Max bugfix",
"author_name": "Adrian Cockcroft",
"author_login": "adrianco",
"committed_at": "2016-01-31T19:31:30Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "954f16e8b9ef0e5d5189456aa4c1202758e04f17",
"body": "prevent Mean and StdDev from being NaN",
"is_bot": false,
"headline": "Merge pull request #12 from toffaletti/master",
"author_name": "Coda Hale",
"author_login": "codahale",
"committed_at": "2015-07-08T13:40:06Z",
"body_truncated": false,
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},
{
"oid": "3dc00d20e1c7a2e2aca019e52e4a15117c82810e",
"body": null,
"is_bot": false,
"headline": "prevent Mean and StdDev from being NaN",
"author_name": "Jason Toffaletti",
"author_login": "toffaletti",
"committed_at": "2015-07-08T07:24:15Z",
"body_truncated": false,
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},
{
"oid": "5fd85ec0b4e2dd5d4158d257d943f2e586d86b62",
"body": "Add an exported TotalCount method to Histogram",
"is_bot": false,
"headline": "Merge pull request #10 from jjolma/export-total-count",
"author_name": "Coda Hale",
"author_login": "codahale",
"committed_at": "2015-04-10T19:14:08Z",
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{
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"body": null,
"is_bot": false,
"headline": "Add an exported TotalCount method to Histogram",
"author_name": "Jeff Jolma",
"author_login": "jjolma",
"committed_at": "2015-04-10T18:48:29Z",
"body_truncated": false,
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},
{
"oid": "fd3681c2262ca0935722dbf8c536d5599e629aef",
"body": "Fix rounding to be consistent with upstream",
"is_bot": false,
"headline": "Merge pull request #7 from zenazn/fix-rounding",
"author_name": "Coda Hale",
"author_login": "codahale",
"committed_at": "2015-02-23T01:27:39Z",
"body_truncated": false,
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{
"oid": "eb65d9ab2af7500fa54f7006359b4a9152bb6a30",
"body": "Use Go's built-in math whenever possible",
"is_bot": false,
"headline": "Merge pull request #6 from zenazn/simplify-math",
"author_name": "Coda Hale",
"author_login": "codahale",
"committed_at": "2015-02-23T01:27:25Z",
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{
"oid": "51c79a5332fa7b2bb016838b51bbfc0572602bdc",
"body": "The upstream (Java) implementation casts to long in a few places, which\ntruncates floating point numbers. This logic was missing from this port.",
"is_bot": false,
"headline": "Fix rounding to be consistent with upstream",
"author_name": "Carl Jackson",
"author_login": "zenazn",
"committed_at": "2015-02-23T00:00:28Z",
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{
"oid": "02ec1263b78f0d2ad672253526bf165aa531a52f",
"body": "Go's math package includes functions like Pow10 and Log2, which we may\nas well make use of.",
"is_bot": false,
"headline": "Use Go's built-in math whenever possible",
"author_name": "Carl Jackson",
"author_login": "zenazn",
"committed_at": "2015-02-22T23:46:29Z",
"body_truncated": false,
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{
"oid": "9208b142303c12d8899bae836fd524ac9338b4fd",
"body": "Export/Import Histograms",
"is_bot": false,
"headline": "Merge pull request #5 from tylertreat/export_import",
"author_name": "Coda Hale",
"author_login": "codahale",
"committed_at": "2015-01-04T20:46:37Z",
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{
"oid": "13633c47d32e0b1cc087b85f26b8e10e7ea95ed5",
"body": null,
"is_bot": false,
"headline": "Change sigfigs back to int in New",
"author_name": "Tyler Treat",
"author_login": "tylertreat",
"committed_at": "2015-01-04T20:13:48Z",
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"oid": "c8225283e8d8e1228031decb8bd776f361533d2c",
"body": null,
"is_bot": false,
"headline": "Update Snapshot docstring.",
"author_name": "Tyler Treat",
"author_login": "tylertreat",
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"headline": "Add unit tests around Import/Export and Equals.",
"author_name": "Tyler Treat",
"author_login": "tylertreat",
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"oid": "6d7ced4b70e891fca6a5c91e2336c2d331d563dc",
"body": "This is useful for serializing Histograms and then reconstructing them.\nThis also adds an Equals method for comparing Histograms for equality.",
"is_bot": false,
"headline": "Add Snapshot struct and corresponding Export/Import functions.",
"author_name": "Tyler Treat",
"author_login": "tylertreat",
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"oid": "328497f858cd7cf2cdd51962f6f31d16498d849d",
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"headline": "Change sigfigs type to int64 in New",
"author_name": "Tyler Treat",
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"oid": "3989c9c70509e52d10cd2b76e254fb570aa4a348",
"body": "Closes #4.",
"is_bot": false,
"headline": "Added Bracket.ValueAt.",
"author_name": "Coda Hale",
"author_login": "codahale",
"committed_at": "2014-11-18T04:59:01Z",
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"oid": "d007420bedfa90a5c8942987a3dd4b22ee5247ba",
"body": null,
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"headline": "Fix smallestUntrackableValue.",
"author_name": "Coda Hale",
"author_login": "codahale",
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"oid": "3463dab1f06cd04e5496153c3af5bc6d3ba3526d",
"body": "Closes #3. Again. :)",
"is_bot": false,
"headline": "Fix overflow in subBucketMask.",
"author_name": "Coda Hale",
"author_login": "codahale",
"committed_at": "2014-11-12T15:11:28Z",
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"body": "Fixes #3.",
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"headline": "Fix overflow at high sigfigs.",
"author_name": "Coda Hale",
"author_login": "stripecodahale",
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{
"oid": "0894c996e42b61ed6d043263b8dea7cf3e8b688d",
"body": null,
"is_bot": false,
"headline": "Clarify the usage of ValueAtQuantile.",
"author_name": "Coda Hale",
"author_login": "codahale",
"committed_at": "2014-11-11T03:44:17Z",
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"oid": "9ed345b932ad88826977c3c127ea45a25e9ffffc",
"body": "Fixes #2.",
"is_bot": false,
"headline": "Fix underflow on unit magnitude.",
"author_name": "Coda Hale",
"author_login": "codahale",
"committed_at": "2014-11-03T01:27:43Z",
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{
"oid": "e2235d826b63c4375dbdf45d5d9a8699a5b6970e",
"body": "No real need for a subpackage, and the constructors make more sense now.",
"is_bot": false,
"headline": "Move to the hdrhistogram package.",
"author_name": "Coda Hale",
"author_login": "codahale",
"committed_at": "2014-10-03T03:37:46Z",
"body_truncated": false,
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{
"oid": "72d50f666622bcd0b23c57ca92aad8fab197fa20",
"body": "Tip appears to be busted.",
"is_bot": false,
"headline": "Only test on Go 1.3.3.",
"author_name": "Coda Hale",
"author_login": "codahale",
"committed_at": "2014-10-03T03:30:43Z",
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"oid": "68cc554f9c0a75b780d3dee4dc4afd45ae75660d",
"body": null,
"is_bot": false,
"headline": "Clarify the RecordCorrectedValue docs.",
"author_name": "Coda Hale",
"author_login": "codahale",
"committed_at": "2014-07-29T17:29:09Z",
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"oid": "dd2d7bbf7faab7ce6fbc98bec6e23649f90da21e",
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"headline": "Added RecordCorrectedValue.",
"author_name": "Coda Hale",
"author_login": "codahale",
"committed_at": "2014-07-29T16:42:58Z",
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{
"oid": "7c62eaac619fc1844e364c90fb7f8f530f7879e1",
"body": null,
"is_bot": false,
"headline": "Tighten up the tests.",
"author_name": "Coda Hale",
"author_login": "codahale",
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{
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{
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{
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{
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{
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{
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},
{
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{
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}
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{
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{
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{
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{
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},
{
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{
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{
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"points": 0,
"status": "missed",
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{
"key": "fuzzing",
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{
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"points": 2.5,
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{
"key": "maintained",
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"points": 7.5,
"status": "met",
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{
"key": "packaging",
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{
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{
"key": "sast",
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"status": "partial",
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{
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{
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"code": "no_data",
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],
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{
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{
"key": "vulnerabilities",
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]
},
{
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{
"code": "advisories_repo_graph_caveat",
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{
"code": "advisories_reachability",
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],
"value": 100,
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"components": [
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}
],
"max_points": 35
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{
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],
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{
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],
"max_points": 40
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]
},
{
"key": "malicious_dependencies",
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"note": null,
"notes": [],
"value": 100,
"inputs": {
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"meaning": "reported as a malicious package by the OpenSSF corpus; the remedy is removal or moving off the compromised name, never an upgrade of the same artifact. Versions the registry has since pulled are listed but not scored",
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"direct_malicious_packages": 0,
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"components": [
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"key": "no_dependency_reported_as_a_malicious_package",
"name": "No dependency reported as a malicious package",
"detail": "no dependency is reported as a malicious package",
"points": 100,
"status": "met",
"details": [
{
"code": "no_malicious_dependencies",
"params": {}
}
],
"max_points": 100
}
]
},
{
"key": "high_risk_jurisdiction_exposure",
"band": "excellent",
"name": "High-Risk Jurisdiction Exposure",
"note": "Only high-confidence self-published location evidence affects this multiplier. Ambiguous matches are review-only; country evidence is not proof of nationality, citizenship, legal registration, malicious intent, or sanctions status.",
"notes": [
{
"code": "jurisdiction_evidence_limits",
"params": {}
}
],
"value": 100,
"inputs": {
"meaning": "self-published location evidence; not nationality or citizenship",
"red_flag": false,
"exposures": [],
"policy_countries": [
"Russia",
"Iran",
"North Korea"
],
"review_only_matches": 0,
"assessed_self_published_locations": 13
},
"components": [
{
"key": "policy_exposure_multiplier",
"name": "Policy exposure multiplier",
"detail": "no confirmed policy-scope location match",
"points": 100,
"status": "met",
"details": [
{
"code": "jurisdiction_no_match",
"params": {}
}
],
"max_points": 100
}
]
}
],
"description": "Are visible security and supply-chain practices strong, with no malicious dependency and no unresolved high-risk jurisdiction exposure?"
},
{
"key": "ai_readiness",
"band": "moderate",
"name": "AI Readiness",
"value": 56,
"weight": 0,
"metrics": [
{
"key": "ai_agent_context",
"band": "critical",
"name": "Agent context & guidance",
"note": null,
"notes": [],
"value": 27,
"inputs": {
"has_llms_txt": false,
"legible_history_share": 0.51,
"agent_instruction_files": [],
"agent_instruction_max_bytes": null
},
"components": [
{
"key": "agent_instructions",
"name": "Agent instructions",
"detail": "no CLAUDE.md / AGENTS.md / editor rules",
"points": 0,
"status": "missed",
"details": [
{
"code": "no_agent_instructions",
"params": {}
}
],
"max_points": 45
},
{
"key": "machine_readable_docs_llms_txt",
"name": "Machine-readable docs (llms.txt)",
"detail": null,
"points": 0,
"status": "missed",
"details": [],
"max_points": 15
},
{
"key": "legible_commit_history",
"name": "Legible commit history",
"detail": "51 of 100 human commits state their intent (structured subject or explanatory body)",
"points": 27.2,
"status": "partial",
"details": [
{
"code": "legible_history",
"params": {
"legible": 51,
"sampled": 100
}
}
],
"max_points": 40
}
]
},
{
"key": "ai_verify_loop",
"band": "moderate",
"name": "Verify loop (build / test / typecheck)",
"note": null,
"notes": [],
"value": 61,
"inputs": {
"has_nix": false,
"has_tests": true,
"lockfiles": [
"go.sum"
],
"has_dockerfile": true,
"typed_language": true,
"bootstrap_files": [
"Makefile"
],
"has_devcontainer": false,
"has_linter_config": false,
"typecheck_configs": [],
"agent_commit_share": 0,
"toolchain_manifests": [
"go.mod"
],
"dependency_bot_commit_share": 0
},
"components": [
{
"key": "one_command_bootstrap",
"name": "One-command bootstrap",
"detail": "Makefile",
"points": 18,
"status": "met",
"details": [
{
"code": "file_list",
"params": {
"files": "Makefile"
}
}
],
"max_points": 18
},
{
"key": "automated_tests",
"name": "Automated tests",
"detail": null,
"points": 22,
"status": "met",
"details": [],
"max_points": 22
},
{
"key": "lint_format_config",
"name": "Lint / format config",
"detail": null,
"points": 0,
"status": "missed",
"details": [],
"max_points": 11
},
{
"key": "static_type_checking",
"name": "Static type checking",
"detail": "Go (statically typed)",
"points": 11,
"status": "met",
"details": [
{
"code": "statically_typed_language",
"params": {
"language": "Go"
}
}
],
"max_points": 11
},
{
"key": "reproducible_environment",
"name": "Reproducible environment",
"detail": "Dockerfile, lockfile",
"points": 10,
"status": "met",
"details": [
{
"code": "file_list",
"params": {
"files": "Dockerfile, lockfile"
}
}
],
"max_points": 10
},
{
"key": "demonstrated_agent_practice",
"name": "Demonstrated agent practice",
"detail": "no agent-authored commits among the last 100",
"points": 0,
"status": "missed",
"details": [
{
"code": "no_agent_authored_commits",
"params": {
"sampled": 100
}
}
],
"max_points": 10
},
{
"key": "automated_maintenance",
"name": "Automated maintenance",
"detail": "no automated dependency updates observed",
"points": 0,
"status": "missed",
"details": [
{
"code": "no_dependency_automation",
"params": {}
}
],
"max_points": 8
},
{
"key": "openssf_scorecard_pinned_dependencies",
"name": "OpenSSF Scorecard: Pinned-Dependencies",
"detail": "dependency not pinned by hash detected -- score normalized to 0",
"points": 0,
"status": "missed",
"details": [],
"max_points": 10
}
]
},
{
"key": "ai_code_legibility",
"band": "excellent",
"name": "Code legibility for models",
"note": null,
"notes": [],
"value": 100,
"inputs": {
"primary_language": "Go",
"largest_source_bytes": 32797,
"source_files_sampled": 22,
"oversized_source_files": 0
},
"components": [
{
"key": "type_checkable_code",
"name": "Type-checkable code",
"detail": "Go (statically typed)",
"points": 45,
"status": "met",
"details": [
{
"code": "statically_typed_language",
"params": {
"language": "Go"
}
}
],
"max_points": 45
},
{
"key": "manageable_file_sizes",
"name": "Manageable file sizes",
"detail": "0/22 source files over 60KB",
"points": 55,
"status": "met",
"details": [
{
"code": "oversized_source_files",
"params": {
"kb": 60,
"sampled": 22,
"oversized": 0
}
}
],
"max_points": 55
}
]
}
],
"description": "How well is the repo equipped to be developed and maintained with AI coding agents? An independent, experimental badge — weight 0.0, so it is surfaced on its own and does not affect the overall health score."
}
],
"metrics_version": "1.13.0"
},
"warnings": [
"Star history unavailable: GitHub GraphQL error: Resource not accessible by personal access token"
],
"report_type": "repository",
"generated_at": "2026-07-25T07:52:31.015606Z",
"schema_version": "0.27.0",
"badge_url": "https://raw.githubusercontent.com/inspect-software/badges/main/v1/h/HdrHistogram/hdrhistogram-go.svg",
"full_name": "HdrHistogram/hdrhistogram-go",
"license_state": "standard",
"license_spdx": "MIT"
}