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hack: add workflow-stats tool for analyzing CI step durations
Analyzes GitHub Actions workflow step durations to help set per-step timeouts based on historical data. Computes min, avg, P50, P90, P95, max, and a suggested timeout (3x P95, rounded to minutes) across completed workflow runs. Features: - SQLite cache at ~/.cache/workflow-stats/<owner>/<repo>/stats.db avoids redundant API calls; only new runs are fetched - Incremental updates using the latest cached run date - Filter by job name (-job), conclusion (-conclusion), branch (-branch) - Output as table (default), markdown, CSV, or JSON Dependencies: - google/go-github/v85: GitHub Actions API client for fetching workflow runs and job details - modernc.org/sqlite: pure-Go SQLite driver (transpiled from C), chosen over mattn/go-sqlite3 to avoid CGO build dependencies Example: $ go run workflow-stats/workflow_stats.go -workflow "Functional Test" Fetching runs since 2026-05-24 ... 6 runs (0.7s) Step N Min Avg P95 Max Timeout Run Functional Test 728 2m50s 4m05s 5m21s 9m27s 17m00s Build minikube and e2e test binaries 156 1m07s 1m39s 2m09s 2m16s 7m00s Set up Rootless Docker (rootless) 67 42s 48s 56s 1m21s 3m00s Update apt-get package index (ubuntu) 373 5s 12s 23s 42s 2m00s ...
1 parent 5407008 commit e46e3ec

3 files changed

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‎hack/go.mod‎

Lines changed: 7 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -19,6 +19,7 @@ require (
1919
gonum.org/v1/plot v0.16.0
2020
k8s.io/klog/v2 v2.140.0
2121
k8s.io/minikube v1.36.0
22+
modernc.org/sqlite v1.50.1
2223
)
2324

2425
require (
@@ -97,6 +98,7 @@ require (
9798
github.com/docker/docker-credential-helpers v0.9.3 // indirect
9899
github.com/docker/go-connections v0.6.0 // indirect
99100
github.com/docker/go-units v0.5.0 // indirect
101+
github.com/dustin/go-humanize v1.0.1 // indirect
100102
github.com/ebitengine/purego v0.10.0 // indirect
101103
github.com/elliotwutingfeng/asciiset v0.0.0-20230602022725-51bbb787efab // indirect
102104
github.com/emicklei/go-restful/v3 v3.13.0 // indirect
@@ -158,6 +160,7 @@ require (
158160
github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
159161
github.com/modern-go/reflect2 v1.0.3-0.20250322232337-35a7c28c31ee // indirect
160162
github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
163+
github.com/ncruces/go-strftime v1.0.0 // indirect
161164
github.com/olekukonko/cat v0.0.0-20250911104152-50322a0618f6 // indirect
162165
github.com/olekukonko/errors v1.2.0 // indirect
163166
github.com/olekukonko/ll v0.1.6 // indirect
@@ -179,6 +182,7 @@ require (
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github.com/prometheus/client_model v0.6.2 // indirect
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github.com/prometheus/common v0.67.5 // indirect
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github.com/prometheus/procfs v0.19.2 // indirect
185+
github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec // indirect
182186
github.com/russross/blackfriday/v2 v2.1.0 // indirect
183187
github.com/sagikazarmark/locafero v0.11.0 // indirect
184188
github.com/shirou/gopsutil/v4 v4.26.4 // indirect
@@ -234,6 +238,9 @@ require (
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k8s.io/kube-openapi v0.0.0-20260317180543-43fb72c5454a // indirect
235239
k8s.io/kubectl v0.36.1 // indirect
236240
k8s.io/utils v0.0.0-20260210185600-b8788abfbbc2 // indirect
241+
modernc.org/libc v1.72.3 // indirect
242+
modernc.org/mathutil v1.7.1 // indirect
243+
modernc.org/memory v1.11.0 // indirect
237244
sigs.k8s.io/json v0.0.0-20250730193827-2d320260d730 // indirect
238245
sigs.k8s.io/randfill v1.0.0 // indirect
239246
sigs.k8s.io/structured-merge-diff/v6 v6.3.2 // indirect

‎hack/go.sum‎

Lines changed: 40 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -183,6 +183,8 @@ github.com/docker/go-connections v0.6.0 h1:LlMG9azAe1TqfR7sO+NJttz1gy6KO7VJBh+pM
183183
github.com/docker/go-connections v0.6.0/go.mod h1:AahvXYshr6JgfUJGdDCs2b5EZG/vmaMAntpSFH5BFKE=
184184
github.com/docker/go-units v0.5.0 h1:69rxXcBk27SvSaaxTtLh/8llcHD8vYHT7WSdRZ/jvr4=
185185
github.com/docker/go-units v0.5.0/go.mod h1:fgPhTUdO+D/Jk86RDLlptpiXQzgHJF7gydDDbaIK4Dk=
186+
github.com/dustin/go-humanize v1.0.1 h1:GzkhY7T5VNhEkwH0PVJgjz+fX1rhBrR7pRT3mDkpeCY=
187+
github.com/dustin/go-humanize v1.0.1/go.mod h1:Mu1zIs6XwVuF/gI1OepvI0qD18qycQx+mFykh5fBlto=
186188
github.com/ebitengine/purego v0.10.0 h1:QIw4xfpWT6GWTzaW5XEKy3HXoqrJGx1ijYHzTF0/ISU=
187189
github.com/ebitengine/purego v0.10.0/go.mod h1:iIjxzd6CiRiOG0UyXP+V1+jWqUXVjPKLAI0mRfJZTmQ=
188190
github.com/elliotwutingfeng/asciiset v0.0.0-20230602022725-51bbb787efab h1:h1UgjJdAAhj+uPL68n7XASS6bU+07ZX1WJvVS2eyoeY=
@@ -254,6 +256,8 @@ github.com/google/go-querystring v1.2.0/go.mod h1:8IFJqpSRITyJ8QhQ13bmbeMBDfmeEJ
254256
github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
255257
github.com/google/martian/v3 v3.3.3 h1:DIhPTQrbPkgs2yJYdXU/eNACCG5DVQjySNRNlflZ9Fc=
256258
github.com/google/martian/v3 v3.3.3/go.mod h1:iEPrYcgCF7jA9OtScMFQyAlZZ4YXTKEtJ1E6RWzmBA0=
259+
github.com/google/pprof v0.0.0-20260115054156-294ebfa9ad83 h1:z2ogiKUYzX5Is6zr/vP9vJGqPwcdqsWjOt+V8J7+bTc=
260+
github.com/google/pprof v0.0.0-20260115054156-294ebfa9ad83/go.mod h1:MxpfABSjhmINe3F1It9d+8exIHFvUqtLIRCdOGNXqiI=
257261
github.com/google/s2a-go v0.1.9 h1:LGD7gtMgezd8a/Xak7mEWL0PjoTQFvpRudN895yqKW0=
258262
github.com/google/s2a-go v0.1.9/go.mod h1:YA0Ei2ZQL3acow2O62kdp9UlnvMmU7kA6Eutn0dXayM=
259263
github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
@@ -272,6 +276,8 @@ github.com/hashicorp/go-getter v1.8.6 h1:9sQboWULaydVphxc4S64oAI4YqpuCk7nPmvbk13
272276
github.com/hashicorp/go-getter v1.8.6/go.mod h1:nVH12eOV2P58dIiL3rsU6Fh3wLeJEKBOJzhMmzlSWoo=
273277
github.com/hashicorp/go-version v1.9.0 h1:CeOIz6k+LoN3qX9Z0tyQrPtiB1DFYRPfCIBtaXPSCnA=
274278
github.com/hashicorp/go-version v1.9.0/go.mod h1:fltr4n8CU8Ke44wwGCBoEymUuxUHl09ZGVZPK5anwXA=
279+
github.com/hashicorp/golang-lru/v2 v2.0.7 h1:a+bsQ5rvGLjzHuww6tVxozPZFVghXaHOwFs4luLUK2k=
280+
github.com/hashicorp/golang-lru/v2 v2.0.7/go.mod h1:QeFd9opnmA6QUJc5vARoKUSoFhyfM2/ZepoAG6RGpeM=
275281
github.com/hectane/go-acl v0.0.0-20190604041725-da78bae5fc95 h1:S4qyfL2sEm5Budr4KVMyEniCy+PbS55651I/a+Kn/NQ=
276282
github.com/hectane/go-acl v0.0.0-20190604041725-da78bae5fc95/go.mod h1:QiyDdbZLaJ/mZP4Zwc9g2QsfaEA4o7XvvgZegSci5/E=
277283
github.com/huandu/xstrings v1.5.0 h1:2ag3IFq9ZDANvthTwTiqSSZLjDc+BedvHPAp5tJy2TI=
@@ -352,6 +358,8 @@ github.com/morikuni/aec v1.0.0 h1:nP9CBfwrvYnBRgY6qfDQkygYDmYwOilePFkwzv4dU8A=
352358
github.com/morikuni/aec v1.0.0/go.mod h1:BbKIizmSmc5MMPqRYbxO4ZU0S0+P200+tUnFx7PXmsc=
353359
github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 h1:C3w9PqII01/Oq1c1nUAm88MOHcQC9l5mIlSMApZMrHA=
354360
github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822/go.mod h1:+n7T8mK8HuQTcFwEeznm/DIxMOiR9yIdICNftLE1DvQ=
361+
github.com/ncruces/go-strftime v1.0.0 h1:HMFp8mLCTPp341M/ZnA4qaf7ZlsbTc+miZjCLOFAw7w=
362+
github.com/ncruces/go-strftime v1.0.0/go.mod h1:Fwc5htZGVVkseilnfgOVb9mKy6w1naJmn9CehxcKcls=
355363
github.com/olekukonko/cat v0.0.0-20250911104152-50322a0618f6 h1:zrbMGy9YXpIeTnGj4EljqMiZsIcE09mmF8XsD5AYOJc=
356364
github.com/olekukonko/cat v0.0.0-20250911104152-50322a0618f6/go.mod h1:rEKTHC9roVVicUIfZK7DYrdIoM0EOr8mK1Hj5s3JjH0=
357365
github.com/olekukonko/errors v1.2.0 h1:10Zcn4GeV59t/EGqJc8fUjtFT/FuUh5bTMzZ1XwmCRo=
@@ -397,6 +405,8 @@ github.com/prometheus/common v0.67.5 h1:pIgK94WWlQt1WLwAC5j2ynLaBRDiinoAb86HZHTU
397405
github.com/prometheus/common v0.67.5/go.mod h1:SjE/0MzDEEAyrdr5Gqc6G+sXI67maCxzaT3A2+HqjUw=
398406
github.com/prometheus/procfs v0.19.2 h1:zUMhqEW66Ex7OXIiDkll3tl9a1ZdilUOd/F6ZXw4Vws=
399407
github.com/prometheus/procfs v0.19.2/go.mod h1:M0aotyiemPhBCM0z5w87kL22CxfcH05ZpYlu+b4J7mw=
408+
github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec h1:W09IVJc94icq4NjY3clb7Lk8O1qJ8BdBEF8z0ibU0rE=
409+
github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec/go.mod h1:qqbHyh8v60DhA7CoWK5oRCqLrMHRGoxYCSS9EjAz6Eo=
400410
github.com/rogpeppe/go-internal v1.14.1 h1:UQB4HGPB6osV0SQTLymcB4TgvyWu6ZyliaW0tI/otEQ=
401411
github.com/rogpeppe/go-internal v1.14.1/go.mod h1:MaRKkUm5W0goXpeCfT7UZI6fk/L7L7so1lCWt35ZSgc=
402412
github.com/russross/blackfriday/v2 v2.1.0 h1:JIOH55/0cWyOuilr9/qlrm0BSXldqnqwMsf35Ld67mk=
@@ -537,6 +547,8 @@ golang.org/x/time v0.15.0/go.mod h1:Y4YMaQmXwGQZoFaVFk4YpCt4FLQMYKZe9oeV/f4MSno=
537547
golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
538548
golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
539549
golang.org/x/tools v0.1.0/go.mod h1:xkSsbof2nBLbhDlRMhhhyNLN/zl3eTqcnHD5viDpcZ0=
550+
golang.org/x/tools v0.44.0 h1:UP4ajHPIcuMjT1GqzDWRlalUEoY+uzoZKnhOjbIPD2c=
551+
golang.org/x/tools v0.44.0/go.mod h1:KA0AfVErSdxRZIsOVipbv3rQhVXTnlU6UhKxHd1seDI=
540552
golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
541553
golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
542554
golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
@@ -592,6 +604,34 @@ k8s.io/kubectl v0.36.1 h1:96HqS9twIdHM0MlJLTwbo14b9kUKPkOzZ4tlRDLv4qI=
592604
k8s.io/kubectl v0.36.1/go.mod h1:/DGPAIewKsFWF9VFgGvkPhao2Ev4SNuE3BioZo8yPbk=
593605
k8s.io/utils v0.0.0-20260210185600-b8788abfbbc2 h1:AZYQSJemyQB5eRxqcPky+/7EdBj0xi3g0ZcxxJ7vbWU=
594606
k8s.io/utils v0.0.0-20260210185600-b8788abfbbc2/go.mod h1:xDxuJ0whA3d0I4mf/C4ppKHxXynQ+fxnkmQH0vTHnuk=
607+
modernc.org/cc/v4 v4.28.2 h1:3tQ0lf2ADtoby2EtSP+J7IE2SHwEJdP8ioR59wx7XpY=
608+
modernc.org/cc/v4 v4.28.2/go.mod h1:OnovgIhbbMXMu1aISnJ0wvVD1KnW+cAUJkIrAWh+kVI=
609+
modernc.org/ccgo/v4 v4.34.0 h1:yRLPFZieg532OT4rp4JFNIVcquwalMX26G95WQDqwCQ=
610+
modernc.org/ccgo/v4 v4.34.0/go.mod h1:AS5WYMyBakQ+fhsHhtP8mWB82KTGPkNNJDGfGQCe0/A=
611+
modernc.org/fileutil v1.4.0 h1:j6ZzNTftVS054gi281TyLjHPp6CPHr2KCxEXjEbD6SM=
612+
modernc.org/fileutil v1.4.0/go.mod h1:EqdKFDxiByqxLk8ozOxObDSfcVOv/54xDs/DUHdvCUU=
613+
modernc.org/gc/v2 v2.6.5 h1:nyqdV8q46KvTpZlsw66kWqwXRHdjIlJOhG6kxiV/9xI=
614+
modernc.org/gc/v2 v2.6.5/go.mod h1:YgIahr1ypgfe7chRuJi2gD7DBQiKSLMPgBQe9oIiito=
615+
modernc.org/gc/v3 v3.1.2 h1:ZtDCnhonXSZexk/AYsegNRV1lJGgaNZJuKjJSWKyEqo=
616+
modernc.org/gc/v3 v3.1.2/go.mod h1:HFK/6AGESC7Ex+EZJhJ2Gni6cTaYpSMmU/cT9RmlfYY=
617+
modernc.org/goabi0 v0.2.0 h1:HvEowk7LxcPd0eq6mVOAEMai46V+i7Jrj13t4AzuNks=
618+
modernc.org/goabi0 v0.2.0/go.mod h1:CEFRnnJhKvWT1c1JTI3Avm+tgOWbkOu5oPA8eH8LnMI=
619+
modernc.org/libc v1.72.3 h1:ZnDF4tXn4NBXFutMMQC4vtbTFSXhhKzR73fv0beZEAU=
620+
modernc.org/libc v1.72.3/go.mod h1:dn0dZNnnn1clLyvRxLxYExxiKRZIRENOfqQ8XEeg4Qs=
621+
modernc.org/mathutil v1.7.1 h1:GCZVGXdaN8gTqB1Mf/usp1Y/hSqgI2vAGGP4jZMCxOU=
622+
modernc.org/mathutil v1.7.1/go.mod h1:4p5IwJITfppl0G4sUEDtCr4DthTaT47/N3aT6MhfgJg=
623+
modernc.org/memory v1.11.0 h1:o4QC8aMQzmcwCK3t3Ux/ZHmwFPzE6hf2Y5LbkRs+hbI=
624+
modernc.org/memory v1.11.0/go.mod h1:/JP4VbVC+K5sU2wZi9bHoq2MAkCnrt2r98UGeSK7Mjw=
625+
modernc.org/opt v0.2.0 h1:tGyef5ApycA7FSEOMraay9SaTk5zmbx7Tu+cJs4QKZg=
626+
modernc.org/opt v0.2.0/go.mod h1:03fq9lsNfvkYSfxrfUhZCWPk1lm4cq4N+Bh//bEtgns=
627+
modernc.org/sortutil v1.2.1 h1:+xyoGf15mM3NMlPDnFqrteY07klSFxLElE2PVuWIJ7w=
628+
modernc.org/sortutil v1.2.1/go.mod h1:7ZI3a3REbai7gzCLcotuw9AC4VZVpYMjDzETGsSMqJE=
629+
modernc.org/sqlite v1.50.1 h1:l+cQvn0sd0zJJtfygGHuQJ5AjlrwXmWPw4KP3ZMwr9w=
630+
modernc.org/sqlite v1.50.1/go.mod h1:tcNzv5p84E0skkmJn038y+hWJbLQXQqEnQfeh5r2JLM=
631+
modernc.org/strutil v1.2.1 h1:UneZBkQA+DX2Rp35KcM69cSsNES9ly8mQWD71HKlOA0=
632+
modernc.org/strutil v1.2.1/go.mod h1:EHkiggD70koQxjVdSBM3JKM7k6L0FbGE5eymy9i3B9A=
633+
modernc.org/token v1.1.0 h1:Xl7Ap9dKaEs5kLoOQeQmPWevfnk/DM5qcLcYlA8ys6Y=
634+
modernc.org/token v1.1.0/go.mod h1:UGzOrNV1mAFSEB63lOFHIpNRUVMvYTc6yu1SMY/XTDM=
595635
rsc.io/pdf v0.1.1 h1:k1MczvYDUvJBe93bYd7wrZLLUEcLZAuF824/I4e5Xr4=
596636
rsc.io/pdf v0.1.1/go.mod h1:n8OzWcQ6Sp37PL01nO98y4iUCRdTGarVfzxY20ICaU4=
597637
sigs.k8s.io/json v0.0.0-20250730193827-2d320260d730 h1:IpInykpT6ceI+QxKBbEflcR5EXP7sU1kvOlxwZh5txg=

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