GitHub Actions runner benchmarks
At 4 vCPU, RunsOn is the best value on all three builds.
Rust spotify-player
2m 00s $0.0036 per build
GitHub 4-core: 13× the cost, 2.0× the time, 9th of 9
TypeScript opencode
1m 01s $0.0033 per build
GitHub 4-core: 7.9× the cost, 2.2× the time, 7th of 8
Docker PostHog image
5m 11s $0.0123 per build
GitHub 4-core: 15× the cost, 2.9× the time, 8th of 8
Best value per providerBuild time per providerCost per build per provider
Each provider's best variantEach provider's best 2 vCPU variantEach provider's best 4 vCPU variantEach provider's best 8 vCPU variant, ranked by time × cost per build.; shades are build phases in order.; build time on the right.
Bar shades, light to dark, in execution order: setup = checkout + packages + toolchaincargo fmtcargo testclippyrunner overhead
cost per build× = time × cost against the best
Bar shades, light to dark, in execution order: toolchainclonebun installtypecheckrunner overhead
cost per build× = time × cost against the best
Faded bars are provisional: under 3 runs, not ranked, no ×.
Bar shades, light to dark, in execution order: fetch sourcebuildx setupdocker buildrunner overhead
cost per build× = time × cost against the best
Each provider's best-value machine (lowest time × cost among its machines within 15% of its fastest of the same size) at 4 vCPU. Rust: RunsOn tested 9, Namespace 2, Ubicloud 2, the others 1; TypeScript: RunsOn tested 9, Ubicloud 2, the others 1; Docker: RunsOn tested 8, Ubicloud 2, the others 1.
Queue and consistency
How long jobs wait in a burst, and how far build times move from run to run.
- GitHub 2 vCPU · 8 GB p50 4s, p10–p90 3s to 5s, min 2s, max 6s, 75 samples
- StarSling 8 vCPU · 32 GB p50 9s, p10–p90 7s to 1m 18s, min 6s, max 1m 35s, 75 samples
- Blacksmith 4 vCPU · 16 GB p50 10s, p10–p90 7s to 14s, min 7s, max 17s, 75 samples
- Avrea 4 vCPU · 16 GB p50 12s, p10–p90 10s to 14s, min 9s, max 15s, 75 samples
- Warpbuild 4 vCPU · 16 GB p50 13s, p10–p90 11s to 14s, min 11s, max 32s, 75 samples
- Namespace 4 vCPU · 8 GB p50 14s, p10–p90 10s to 20s, min 8s, max 27s, 75 samples
- RunsOn 2 vCPU · 16 GB p50 16s, p10–p90 15s to 19s, min 15s, max 21s, 45 samples
- Ubicloud 8 vCPU · 32 GB p50 18s, p10–p90 17s to 23s, min 15s, max 26s, 75 samples
- AWS CodeBuild 8 vCPU · 16 GB p50 20s, p10–p90 19s to 24s, min 18s, max 34s, 75 samples
- GitHub 2 vCPU · 8 GB p50 4s, p10–p90 3s to 5s, min 2s, max 6s, 75 samples
- Blacksmith 2 vCPU · 8 GB p50 11s, p10–p90 7s to 13s, min 7s, max 14s, 75 samples
- Namespace 2 vCPU · 8 GB p50 14s, p10–p90 8s to 21s, min 7s, max 25s, 75 samples
- Warpbuild 2 vCPU · 8 GB p50 14s, p10–p90 12s to 17s, min 11s, max 1m 23s, 75 samples
- Avrea 2 vCPU · 8 GB p50 15s, p10–p90 10s to 19s, min 8s, max 20s, 75 samples
- RunsOn 2 vCPU · 16 GB p50 16s, p10–p90 15s to 19s, min 15s, max 21s, 45 samples
- Ubicloud 2 vCPU · 8 GB p50 18s, p10–p90 10s to 28s, min 9s, max 51s, 75 samples
- AWS CodeBuild 2 vCPU · 3 GB p50 21s, p10–p90 19s to 24s, min 17s, max 29s, 75 samples
- GitHub 4 vCPU · 16 GB p50 4s, p10–p90 3s to 6s, min 2s, max 42s, 75 samples
- Blacksmith 4 vCPU · 16 GB p50 10s, p10–p90 7s to 14s, min 7s, max 17s, 75 samples
- StarSling 4 vCPU · 16 GB p50 10s, p10–p90 8s to 13s, min 7s, max 14s, 75 samples
- Avrea 4 vCPU · 16 GB p50 12s, p10–p90 10s to 14s, min 9s, max 15s, 75 samples
- Warpbuild 4 vCPU · 16 GB p50 13s, p10–p90 11s to 14s, min 11s, max 32s, 75 samples
- Namespace 4 vCPU · 8 GB p50 14s, p10–p90 10s to 20s, min 8s, max 27s, 75 samples
- RunsOn 4 vCPU · 32 GB p50 17s, p10–p90 16s to 21s, min 15s, max 22s, 75 samples
- Ubicloud 4 vCPU · 16 GB p50 20s, p10–p90 17s to 28s, min 10s, max 31s, 75 samples
- AWS CodeBuild 4 vCPU · 8 GB p50 21s, p10–p90 19s to 24s, min 18s, max 26s, 75 samples
- StarSling 8 vCPU · 32 GB p50 9s, p10–p90 7s to 1m 18s, min 6s, max 1m 35s, 75 samples
- Blacksmith 8 vCPU · 32 GB p50 11s, p10–p90 8s to 13s, min 8s, max 15s, 75 samples
- Namespace 8 vCPU · 32 GB p50 14s, p10–p90 8s to 23s, min 7s, max 1m 29s, 75 samples
- Warpbuild 8 vCPU · 32 GB p50 15s, p10–p90 10s to 20s, min 7s, max 23s, 75 samples
- RunsOn 8 vCPU · 32 GB p50 17s, p10–p90 15s to 21s, min 15s, max 24s, 75 samples
- Ubicloud 8 vCPU · 32 GB p50 18s, p10–p90 17s to 23s, min 15s, max 26s, 75 samples
- AWS CodeBuild 8 vCPU · 16 GB p50 20s, p10–p90 19s to 24s, min 18s, max 34s, 75 samples
- GitHub 8 vCPU · 32 GB p50 1m 16s, p10–p90 1m 00s to 1m 34s, min 3s, max 2m 12s, 75 samples
- Avrea 8 vCPU · 32 GB p50 12s, min 8s, max 1m 34s, 75 samples, not ranked: 12 at a time: plan limit
- GitHub 4 vCPU · 16 GB p50 6s, p10–p90 5s to 8s, min 5s, max 9s, 75 samples
- Ubicloud 2 vCPU · 8 GB p50 11s, p10–p90 8s to 35s, min 8s, max 1m 01s, 75 samples
- Namespace 2 vCPU · 8 GB p50 13s, p10–p90 9s to 19s, min 9s, max 21s, 45 samples
- Warpbuild 6 vCPU · 14 GB p50 14s, p10–p90 12s to 43s, min 12s, max 7m 36s, 75 samples
- Blacksmith 8 vCPU · 32 GB p50 15s, p10–p90 12s to 16s, min 12s, max 21s, 75 samples
- RunsOn 2 vCPU · 16 GB p50 17s, p10–p90 15s to 21s, min 14s, max 23s, 45 samples
- Avrea 4 vCPU · 16 GB p50 23s, p10–p90 22s to 33s, min 20s, max 1m 26s, 75 samples
- GitHub 2 vCPU · 8 GB p50 7s, p10–p90 5s to 8s, min 5s, max 9s, 75 samples
- Ubicloud 2 vCPU · 8 GB p50 11s, p10–p90 8s to 35s, min 8s, max 1m 01s, 75 samples
- Namespace 2 vCPU · 8 GB p50 13s, p10–p90 9s to 19s, min 9s, max 21s, 45 samples
- Blacksmith 2 vCPU · 6 GB p50 16s, p10–p90 13s to 19s, min 11s, max 28s, 75 samples
- RunsOn 2 vCPU · 16 GB p50 17s, p10–p90 15s to 21s, min 14s, max 23s, 45 samples
- Avrea 2 vCPU · 8 GB p50 24s, p10–p90 22s to 28s, min 21s, max 33s, 75 samples
- Warpbuild 2 vCPU · 8 GB p50 38s, p10–p90 35s to 46s, min 8s, max 56s, 75 samples
- GitHub 4 vCPU · 16 GB p50 6s, p10–p90 5s to 8s, min 5s, max 9s, 75 samples
- Namespace 4 vCPU · 16 GB p50 14s, p10–p90 11s to 20s, min 2s, max 25s, 75 samples
- Blacksmith 4 vCPU · 16 GB p50 15s, p10–p90 12s to 17s, min 10s, max 26s, 75 samples
- RunsOn 4 vCPU · 32 GB p50 18s, p10–p90 15s to 20s, min 14s, max 21s, 60 samples
- Avrea 4 vCPU · 16 GB p50 23s, p10–p90 22s to 33s, min 20s, max 1m 26s, 75 samples
- Ubicloud 4 vCPU · 16 GB p50 23s, p10–p90 10s to 32s, min 9s, max 44s, 75 samples
- Warpbuild 4 vCPU · 16 GB p50 37s, p10–p90 18s to 1m 19s, min 6s, max 1m 35s, 75 samples
- Blacksmith 8 vCPU · 32 GB p50 15s, p10–p90 12s to 16s, min 12s, max 21s, 75 samples
- RunsOn 8 vCPU · 32 GB p50 17s, p10–p90 15s to 21s, min 14s, max 25s, 75 samples
- Namespace 8 vCPU · 16 GB p50 20s, p10–p90 15s to 26s, min 14s, max 4m 20s, 75 samples
- Ubicloud 8 vCPU · 32 GB p50 23s, p10–p90 20s to 2m 39s, min 9s, max 4m 19s, 75 samples
- Warpbuild 8 vCPU · 32 GB p50 35s, p10–p90 16s to 46s, min 8s, max 49s, 75 samples
- Avrea 8 vCPU · 32 GB p50 25s, min 19s, max 2m 03s, 75 samples, not ranked: 12 at a time: plan limit
- RunsOn 4 vCPU · 8 GB spread 4.7% (p10–p90) around a p50 of 1m 51s, min 1m 46s, max 1m 52s, 5 samples
- StarSling 4 vCPU · 16 GB spread 11.5% (p10–p90) around a p50 of 1m 43s, min 1m 28s, max 1m 45s, 5 samples
- Blacksmith 8 vCPU · 32 GB spread 18.2% (p10–p90) around a p50 of 1m 16s, min 1m 11s, max 1m 26s, 5 samples
- Namespace 4 vCPU · 8 GB spread 22% (p10–p90) around a p50 of 1m 52s, min 1m 38s, max 2m 05s, 5 samples
- Warpbuild 8 vCPU · 32 GB spread 22.9% (p10–p90) around a p50 of 1m 29s, min 1m 17s, max 1m 47s, 5 samples
- Avrea 4 vCPU · 16 GB spread 23.6% (p10–p90) around a p50 of 1m 56s, min 1m 51s, max 2m 30s, 5 samples
- GitHub 8 vCPU · 32 GB spread 27.1% (p10–p90) around a p50 of 2m 24s, min 1m 48s, max 2m 31s, 5 samples
- AWS CodeBuild 8 vCPU · 16 GB spread 28.9% (p10–p90) around a p50 of 2m 19s, min 2m 02s, max 3m 05s, 5 samples
- Ubicloud 2 vCPU · 8 GB spread 81% (p10–p90) around a p50 of 3m 59s, min 3m 54s, max 7m 36s, 5 samples
- RunsOn 2 vCPU · 8 GB p50 2m 49s, min 2m 45s, max 2m 53s, 4 samples, not ranked
- Warpbuild 2 vCPU · 8 GB spread 11.2% (p10–p90) around a p50 of 3m 35s, min 3m 32s, max 4m 06s, 5 samples
- GitHub 2 vCPU · 8 GB spread 18.4% (p10–p90) around a p50 of 6m 56s, min 5m 26s, max 7m 13s, 5 samples
- Avrea 2 vCPU · 8 GB spread 19% (p10–p90) around a p50 of 3m 09s, min 3m 04s, max 3m 48s, 5 samples
- Blacksmith 2 vCPU · 8 GB spread 20% (p10–p90) around a p50 of 3m 12s, min 3m 01s, max 3m 57s, 5 samples
- Namespace 2 vCPU · 8 GB spread 23.4% (p10–p90) around a p50 of 2m 39s, min 2m 36s, max 3m 34s, 5 samples
- AWS CodeBuild 2 vCPU · 3 GB spread 29.4% (p10–p90) around a p50 of 6m 27s, min 6m 08s, max 9m 11s, 5 samples
- Ubicloud 2 vCPU · 8 GB spread 81% (p10–p90) around a p50 of 3m 59s, min 3m 54s, max 7m 36s, 5 samples
- RunsOn 4 vCPU · 8 GB spread 4.7% (p10–p90) around a p50 of 1m 51s, min 1m 46s, max 1m 52s, 5 samples
- GitHub 4 vCPU · 16 GB spread 7% (p10–p90) around a p50 of 3m 47s, min 3m 35s, max 3m 58s, 5 samples
- StarSling 4 vCPU · 16 GB spread 11.5% (p10–p90) around a p50 of 1m 43s, min 1m 28s, max 1m 45s, 5 samples
- Warpbuild 4 vCPU · 16 GB spread 13% (p10–p90) around a p50 of 2m 20s, min 1m 59s, max 2m 22s, 5 samples
- Blacksmith 4 vCPU · 16 GB spread 15.9% (p10–p90) around a p50 of 2m 01s, min 1m 50s, max 2m 12s, 5 samples
- Namespace 4 vCPU · 8 GB spread 22% (p10–p90) around a p50 of 1m 52s, min 1m 38s, max 2m 05s, 5 samples
- Avrea 4 vCPU · 16 GB spread 23.6% (p10–p90) around a p50 of 1m 56s, min 1m 51s, max 2m 30s, 5 samples
- AWS CodeBuild 4 vCPU · 8 GB spread 26% (p10–p90) around a p50 of 3m 35s, min 3m 11s, max 4m 24s, 5 samples
- Ubicloud 4 vCPU · 16 GB spread 87.8% (p10–p90) around a p50 of 2m 13s, min 1m 49s, max 4m 07s, 5 samples
- Ubicloud 8 vCPU · 32 GB spread 11.7% (p10–p90) around a p50 of 1m 56s, min 1m 52s, max 2m 08s, 5 samples
- Avrea 8 vCPU · 32 GB spread 12.3% (p10–p90) around a p50 of 1m 18s, min 1m 13s, max 1m 25s, 5 samples
- StarSling 8 vCPU · 32 GB spread 13.1% (p10–p90) around a p50 of 1m 12s, min 1m 01s, max 1m 16s, 5 samples
- RunsOn 8 vCPU · 16 GB spread 13.5% (p10–p90) around a p50 of 1m 14s, min 1m 13s, max 1m 29s, 5 samples
- Blacksmith 8 vCPU · 32 GB spread 18.2% (p10–p90) around a p50 of 1m 16s, min 1m 11s, max 1m 26s, 5 samples
- Warpbuild 8 vCPU · 32 GB spread 22.9% (p10–p90) around a p50 of 1m 29s, min 1m 17s, max 1m 47s, 5 samples
- Namespace 8 vCPU · 16 GB spread 23.3% (p10–p90) around a p50 of 1m 20s, min 1m 08s, max 1m 31s, 5 samples
- GitHub 8 vCPU · 32 GB spread 27.1% (p10–p90) around a p50 of 2m 24s, min 1m 48s, max 2m 31s, 5 samples
- AWS CodeBuild 8 vCPU · 16 GB spread 28.9% (p10–p90) around a p50 of 2m 19s, min 2m 02s, max 3m 05s, 5 samples
- RunsOn 8 vCPU · 32 GB spread 8.6% (p10–p90) around a p50 of 1m 12s, min 1m 11s, max 1m 18s, 5 samples
- Blacksmith 8 vCPU · 32 GB spread 9.3% (p10–p90) around a p50 of 3m 10s, min 3m 02s, max 3m 24s, 5 samples
- GitHub 4 vCPU · 16 GB spread 9.8% (p10–p90) around a p50 of 3m 10s, min 2m 53s, max 3m 16s, 5 samples
- Avrea 2 vCPU · 8 GB spread 13.7% (p10–p90) around a p50 of 2m 14s, min 1m 56s, max 2m 16s, 5 samples
- Warpbuild 8 vCPU · 32 GB spread 13.9% (p10–p90) around a p50 of 1m 59s, min 1m 51s, max 2m 10s, 5 samples
- Ubicloud 4 vCPU · 16 GB spread 28.3% (p10–p90) around a p50 of 4m 31s, min 4m 12s, max 5m 45s, 5 samples
- Namespace 4 vCPU · 16 GB spread 37.6% (p10–p90) around a p50 of 1m 25s, min 1m 19s, max 2m 11s, 5 samples
- RunsOn 2 vCPU · 8 GB spread 0.9% (p10–p90) around a p50 of 2m 52s, min 2m 51s, max 2m 53s, 5 samples
- Warpbuild 2 vCPU · 8 GB spread 6.4% (p10–p90) around a p50 of 4m 46s, min 4m 33s, max 4m 54s, 5 samples
- GitHub 2 vCPU · 8 GB spread 7% (p10–p90) around a p50 of 5m 07s, min 5m 06s, max 5m 28s, 5 samples
- Ubicloud 2 vCPU · 8 GB spread 7.8% (p10–p90) around a p50 of 7m 26s, min 7m 01s, max 7m 46s, 5 samples
- Namespace 2 vCPU · 8 GB p50 2m 05s, min 2m 04s, max 2m 21s, 3 samples, not ranked
- Blacksmith 2 vCPU · 6 GB spread 11.2% (p10–p90) around a p50 of 7m 44s, min 7m 30s, max 8m 43s, 5 samples
- Avrea 2 vCPU · 8 GB spread 13.7% (p10–p90) around a p50 of 2m 14s, min 1m 56s, max 2m 16s, 5 samples
- RunsOn 4 vCPU · 16 GB spread 3.1% (p10–p90) around a p50 of 1m 48s, min 1m 46s, max 1m 51s, 5 samples
- Blacksmith 4 vCPU · 16 GB spread 9.2% (p10–p90) around a p50 of 4m 39s, min 4m 27s, max 4m 58s, 5 samples
- GitHub 4 vCPU · 16 GB spread 9.8% (p10–p90) around a p50 of 3m 10s, min 2m 53s, max 3m 16s, 5 samples
- Warpbuild 4 vCPU · 16 GB spread 11.3% (p10–p90) around a p50 of 2m 59s, min 2m 41s, max 3m 10s, 5 samples
- Avrea 4 vCPU · 16 GB spread 27.7% (p10–p90) around a p50 of 1m 36s, min 1m 20s, max 1m 53s, 5 samples
- Ubicloud 4 vCPU · 16 GB spread 28.3% (p10–p90) around a p50 of 4m 31s, min 4m 12s, max 5m 45s, 5 samples
- Namespace 4 vCPU · 16 GB spread 37.6% (p10–p90) around a p50 of 1m 25s, min 1m 19s, max 2m 11s, 5 samples
- RunsOn 8 vCPU · 32 GB spread 8.6% (p10–p90) around a p50 of 1m 12s, min 1m 11s, max 1m 18s, 5 samples
- Blacksmith 8 vCPU · 32 GB spread 9.3% (p10–p90) around a p50 of 3m 10s, min 3m 02s, max 3m 24s, 5 samples
- Namespace 8 vCPU · 16 GB spread 11.7% (p10–p90) around a p50 of 3m 55s, min 3m 28s, max 4m 04s, 5 samples
- Warpbuild 8 vCPU · 32 GB spread 13.9% (p10–p90) around a p50 of 1m 59s, min 1m 51s, max 2m 10s, 5 samples
- Ubicloud 8 vCPU · 32 GB spread 21.5% (p10–p90) around a p50 of 3m 29s, min 3m 28s, max 4m 23s, 5 samples
- Avrea 8 vCPU · 32 GB spread 23.4% (p10–p90) around a p50 of 1m 17s, min 1m 01s, max 1m 19s, 5 samples
- Warpbuild 8 vCPU · 32 GB spread 3.6% (p10–p90) around a p50 of 44s, min 43s, max 45s, 5 samples
- GitHub 8 vCPU · 32 GB spread 23.9% (p10–p90) around a p50 of 1m 11s, min 56s, max 1m 15s, 5 samples
- Blacksmith 4 vCPU · 16 GB spread 24.4% (p10–p90) around a p50 of 54s, min 48s, max 1m 04s, 5 samples
- Ubicloud 8 vCPU · 32 GB spread 32% (p10–p90) around a p50 of 40s, min 37s, max 51s, 5 samples
- StarSling 4 vCPU · 16 GB spread 39.6% (p10–p90) around a p50 of 52s, min 44s, max 1m 17s, 5 samples
- Namespace 8 vCPU · 16 GB spread 45.6% (p10–p90) around a p50 of 39s, min 31s, max 54s, 5 samples
- AWS CodeBuild 8 vCPU · 16 GB spread 48.1% (p10–p90) around a p50 of 1m 07s, min 1m 02s, max 1m 45s, 5 samples
- RunsOn 8 vCPU · 32 GB spread 101.4% (p10–p90) around a p50 of 29s, min 29s, max 1m 18s, 5 samples
Under 3 runs so far: Avrea.
- Blacksmith 2 vCPU · 8 GB spread 12.5% (p10–p90) around a p50 of 1m 46s, min 1m 37s, max 1m 53s, 5 samples
- GitHub 2 vCPU · 8 GB p50 3m 44s, min 3m 32s, max 4m 33s, 3 samples, not ranked
- RunsOn 2 vCPU · 16 GB p50 1m 25s, min 1m 25s, max 2m 11s, 3 samples, not ranked
- Warpbuild 2 vCPU · 8 GB spread 48.1% (p10–p90) around a p50 of 2m 38s, min 1m 54s, max 3m 30s, 5 samples
- Ubicloud 2 vCPU · 8 GB spread 61% (p10–p90) around a p50 of 2m 58s, min 2m 13s, max 4m 36s, 5 samples
Under 3 runs so far: Avrea.
- Warpbuild 4 vCPU · 16 GB spread 10.7% (p10–p90) around a p50 of 1m 15s, min 1m 12s, max 1m 24s, 5 samples
- GitHub 4 vCPU · 16 GB spread 13.6% (p10–p90) around a p50 of 1m 56s, min 1m 43s, max 2m 06s, 5 samples
- Ubicloud 4 vCPU · 16 GB spread 20.2% (p10–p90) around a p50 of 1m 30s, min 1m 25s, max 1m 54s, 5 samples
- Blacksmith 4 vCPU · 16 GB spread 24.4% (p10–p90) around a p50 of 54s, min 48s, max 1m 04s, 5 samples
- StarSling 4 vCPU · 16 GB spread 39.6% (p10–p90) around a p50 of 52s, min 44s, max 1m 17s, 5 samples
- Namespace 4 vCPU · 16 GB spread 52% (p10–p90) around a p50 of 1m 05s, min 47s, max 1m 34s, 5 samples
- RunsOn 4 vCPU · 32 GB spread 75.2% (p10–p90) around a p50 of 46s, min 45s, max 1m 40s, 5 samples
Under 3 runs so far: Avrea.
- Warpbuild 8 vCPU · 32 GB spread 3.6% (p10–p90) around a p50 of 44s, min 43s, max 45s, 5 samples
- Blacksmith 8 vCPU · 32 GB spread 10.3% (p10–p90) around a p50 of 37s, min 33s, max 38s, 5 samples
- GitHub 8 vCPU · 32 GB spread 23.9% (p10–p90) around a p50 of 1m 11s, min 56s, max 1m 15s, 5 samples
- Ubicloud 8 vCPU · 32 GB spread 32% (p10–p90) around a p50 of 40s, min 37s, max 51s, 5 samples
- StarSling 8 vCPU · 32 GB spread 42.9% (p10–p90) around a p50 of 42s, min 31s, max 53s, 5 samples
- Namespace 8 vCPU · 16 GB spread 45.6% (p10–p90) around a p50 of 39s, min 31s, max 54s, 5 samples
- AWS CodeBuild 8 vCPU · 16 GB spread 48.1% (p10–p90) around a p50 of 1m 07s, min 1m 02s, max 1m 45s, 5 samples
- RunsOn 8 vCPU · 32 GB spread 101.4% (p10–p90) around a p50 of 29s, min 29s, max 1m 18s, 5 samples
Under 3 runs so far: Avrea.
- GitHub 4 vCPU · 16 GB spread 7.1% (p10–p90) around a p50 of 1m 24s, min 1m 24s, max 1m 34s, 5 samples
- Blacksmith 8 vCPU · 32 GB spread 19.8% (p10–p90) around a p50 of 1m 20s, min 1m 13s, max 1m 36s, 5 samples
- Ubicloud 8 vCPU · 32 GB spread 21.8% (p10–p90) around a p50 of 1m 19s, min 1m 11s, max 1m 31s, 5 samples
- Namespace 8 vCPU · 16 GB spread 27.4% (p10–p90) around a p50 of 1m 43s, min 1m 26s, max 1m 55s, 5 samples
- Warpbuild 8 vCPU · 32 GB spread 74% (p10–p90) around a p50 of 43s, min 42s, max 1m 33s, 5 samples
- RunsOn 4 vCPU · 16 GB spread 420% (p10–p90) around a p50 of 47s, min 44s, max 6m 11s, 5 samples
Under 3 runs so far: Avrea.
- GitHub 2 vCPU · 8 GB p50 3m 12s, min 3m 00s, max 3m 14s, 4 samples, not ranked
- Ubicloud 2 vCPU · 8 GB p50 4m 27s, min 4m 01s, max 4m 38s, 3 samples, not ranked
- Blacksmith 2 vCPU · 6 GB spread 11.3% (p10–p90) around a p50 of 6m 52s, min 6m 28s, max 7m 31s, 5 samples
- RunsOn 2 vCPU · 8 GB spread 18.4% (p10–p90) around a p50 of 1m 46s, min 1m 39s, max 2m 07s, 6 samples
- Warpbuild 2 vCPU · 8 GB spread 70.5% (p10–p90) around a p50 of 6m 07s, min 2m 08s, max 7m 23s, 5 samples
Under 3 runs so far: Avrea.
- Blacksmith 4 vCPU · 16 GB spread 7% (p10–p90) around a p50 of 2m 23s, min 2m 14s, max 2m 24s, 5 samples
- GitHub 4 vCPU · 16 GB spread 7.1% (p10–p90) around a p50 of 1m 24s, min 1m 24s, max 1m 34s, 5 samples
- Ubicloud 4 vCPU · 16 GB spread 19.4% (p10–p90) around a p50 of 2m 06s, min 1m 45s, max 2m 17s, 5 samples
- Warpbuild 4 vCPU · 16 GB spread 33.6% (p10–p90) around a p50 of 1m 15s, min 1m 09s, max 1m 49s, 5 samples
- Namespace 4 vCPU · 16 GB spread 207.8% (p10–p90) around a p50 of 46s, min 36s, max 2m 18s, 5 samples
- RunsOn 4 vCPU · 16 GB spread 420% (p10–p90) around a p50 of 47s, min 44s, max 6m 11s, 5 samples
Under 3 runs so far: Avrea.
- Blacksmith 8 vCPU · 32 GB spread 19.8% (p10–p90) around a p50 of 1m 20s, min 1m 13s, max 1m 36s, 5 samples
- Ubicloud 8 vCPU · 32 GB spread 21.8% (p10–p90) around a p50 of 1m 19s, min 1m 11s, max 1m 31s, 5 samples
- Namespace 8 vCPU · 16 GB spread 27.4% (p10–p90) around a p50 of 1m 43s, min 1m 26s, max 1m 55s, 5 samples
- Warpbuild 8 vCPU · 32 GB spread 74% (p10–p90) around a p50 of 43s, min 42s, max 1m 33s, 5 samples
- RunsOn 8 vCPU · 32 GB spread 89.7% (p10–p90) around a p50 of 31s, min 29s, max 1m 14s, 5 samples
Under 3 runs so far: Avrea.
- RunsOn 8 vCPU · 32 GB spread 9.3% (p10–p90) around a p50 of 3m 39s, min 3m 32s, max 3m 58s, 5 samples
- Warpbuild 8 vCPU · 32 GB spread 11.8% (p10–p90) around a p50 of 4m 54s, min 4m 34s, max 5m 22s, 7 samples
- Namespace 8 vCPU · 16 GB spread 12.1% (p10–p90) around a p50 of 3m 56s, min 3m 52s, max 4m 53s, 7 samples
- Blacksmith 4 vCPU · 16 GB spread 15.4% (p10–p90) around a p50 of 5m 22s, min 4m 59s, max 5m 57s, 7 samples
- Ubicloud 8 vCPU · 32 GB spread 22.5% (p10–p90) around a p50 of 7m 50s, min 7m 16s, max 9m 51s, 7 samples
- AWS CodeBuild 8 vCPU · 16 GB spread 23.5% (p10–p90) around a p50 of 12m 03s, min 11m 11s, max 14m 17s, 6 samples
- Avrea 8 vCPU · 32 GB spread 32.1% (p10–p90) around a p50 of 4m 47s, min 4m 14s, max 6m 40s, 7 samples
- StarSling 4 vCPU · 16 GB spread 36.2% (p10–p90) around a p50 of 5m 28s, min 5m 22s, max 9m 34s, 7 samples
- GitHub 8 vCPU · 32 GB spread 273.9% (p10–p90) around a p50 of 7m 18s, min 6m 04s, max 52m 26s, 7 samples
- RunsOn 2 vCPU · 16 GB spread 9.1% (p10–p90) around a p50 of 11m 32s, min 11m 05s, max 12m 13s, 6 samples
- RunsOn 4 vCPU · 32 GB spread 6.2% (p10–p90) around a p50 of 4m 55s, min 4m 41s, max 5m 06s, 5 samples
- Warpbuild 4 vCPU · 16 GB spread 9.4% (p10–p90) around a p50 of 7m 40s, min 6m 54s, max 7m 56s, 7 samples
- Namespace 4 vCPU · 16 GB spread 11.1% (p10–p90) around a p50 of 5m 08s, min 4m 52s, max 5m 47s, 6 samples
- GitHub 4 vCPU · 16 GB spread 14.7% (p10–p90) around a p50 of 13m 13s, min 12m 10s, max 15m 18s, 7 samples
- Blacksmith 4 vCPU · 16 GB spread 15.4% (p10–p90) around a p50 of 5m 22s, min 4m 59s, max 5m 57s, 7 samples
- Avrea 4 vCPU · 16 GB spread 23% (p10–p90) around a p50 of 6m 47s, min 5m 57s, max 7m 44s, 7 samples
- Ubicloud 4 vCPU · 16 GB spread 32.3% (p10–p90) around a p50 of 11m 29s, min 10m 02s, max 15m 39s, 7 samples
- StarSling 4 vCPU · 16 GB spread 36.2% (p10–p90) around a p50 of 5m 28s, min 5m 22s, max 9m 34s, 7 samples
- RunsOn 8 vCPU · 32 GB spread 9.3% (p10–p90) around a p50 of 3m 39s, min 3m 32s, max 3m 58s, 5 samples
- StarSling 8 vCPU · 32 GB spread 9.9% (p10–p90) around a p50 of 4m 13s, min 3m 54s, max 4m 31s, 7 samples
- Warpbuild 8 vCPU · 32 GB spread 11.8% (p10–p90) around a p50 of 4m 54s, min 4m 34s, max 5m 22s, 7 samples
- Namespace 8 vCPU · 16 GB spread 12.1% (p10–p90) around a p50 of 3m 56s, min 3m 52s, max 4m 53s, 7 samples
- Blacksmith 8 vCPU · 32 GB spread 12.1% (p10–p90) around a p50 of 3m 56s, min 3m 46s, max 4m 29s, 7 samples
- Ubicloud 8 vCPU · 32 GB spread 22.5% (p10–p90) around a p50 of 7m 50s, min 7m 16s, max 9m 51s, 7 samples
- AWS CodeBuild 8 vCPU · 16 GB spread 23.5% (p10–p90) around a p50 of 12m 03s, min 11m 11s, max 14m 17s, 6 samples
- Avrea 8 vCPU · 32 GB spread 32.1% (p10–p90) around a p50 of 4m 47s, min 4m 14s, max 6m 40s, 7 samples
- GitHub 8 vCPU · 32 GB spread 273.9% (p10–p90) around a p50 of 7m 18s, min 6m 04s, max 52m 26s, 7 samples
- Blacksmith 8 vCPU · 32 GB spread 5.7% (p10–p90) around a p50 of 8m 00s, min 7m 49s, max 8m 39s, 7 samples
- Warpbuild 8 vCPU · 32 GB spread 6.6% (p10–p90) around a p50 of 6m 34s, min 6m 12s, max 6m 43s, 7 samples
- RunsOn 8 vCPU · 32 GB spread 10.9% (p10–p90) around a p50 of 3m 59s, min 3m 51s, max 4m 23s, 5 samples
- Avrea 4 vCPU · 16 GB spread 19.3% (p10–p90) around a p50 of 5m 01s, min 4m 30s, max 6m 01s, 7 samples
- Namespace 8 vCPU · 16 GB spread 19.4% (p10–p90) around a p50 of 10m 17s, min 9m 32s, max 11m 57s, 7 samples
- Ubicloud 4 vCPU · 16 GB spread 20.3% (p10–p90) around a p50 of 14m 02s, min 13m 26s, max 17m 09s, 7 samples
- GitHub 4 vCPU · 16 GB spread 118.2% (p10–p90) around a p50 of 9m 37s, min 9m 04s, max 35m 34s, 7 samples
- RunsOn 4 vCPU · 32 GB spread 5.2% (p10–p90) around a p50 of 5m 19s, min 5m 06s, max 5m 27s, 5 samples
- Warpbuild 4 vCPU · 16 GB spread 10.5% (p10–p90) around a p50 of 10m 11s, min 9m 09s, max 10m 52s, 7 samples
- Namespace 4 vCPU · 16 GB spread 13.9% (p10–p90) around a p50 of 4m 31s, min 4m 19s, max 5m 16s, 6 samples
- Avrea 4 vCPU · 16 GB spread 19.3% (p10–p90) around a p50 of 5m 01s, min 4m 30s, max 6m 01s, 7 samples
- Ubicloud 4 vCPU · 16 GB spread 20.3% (p10–p90) around a p50 of 14m 02s, min 13m 26s, max 17m 09s, 7 samples
- Blacksmith 4 vCPU · 16 GB spread 41.3% (p10–p90) around a p50 of 12m 40s, min 11m 05s, max 18m 32s, 7 samples
- GitHub 4 vCPU · 16 GB spread 118.2% (p10–p90) around a p50 of 9m 37s, min 9m 04s, max 35m 34s, 7 samples
- Blacksmith 8 vCPU · 32 GB spread 5.7% (p10–p90) around a p50 of 8m 00s, min 7m 49s, max 8m 39s, 7 samples
- Warpbuild 8 vCPU · 32 GB spread 6.6% (p10–p90) around a p50 of 6m 34s, min 6m 12s, max 6m 43s, 7 samples
- RunsOn 8 vCPU · 32 GB spread 10.9% (p10–p90) around a p50 of 3m 59s, min 3m 51s, max 4m 23s, 5 samples
- Namespace 8 vCPU · 16 GB spread 19.4% (p10–p90) around a p50 of 10m 17s, min 9m 32s, max 11m 57s, 7 samples
- Ubicloud 8 vCPU · 32 GB spread 20.9% (p10–p90) around a p50 of 10m 31s, min 9m 43s, max 12m 19s, 7 samples
- Avrea 8 vCPU · 32 GB spread 28.8% (p10–p90) around a p50 of 3m 49s, min 3m 32s, max 4m 44s, 7 samples
Is a bigger runner always worth it?
What doubling the vCPU did to each build, on each provider's own runner line: each step usually saves less time and costs more per build.
Median across providers: from 4 to 8 vCPU, each build ran 22–31% faster for 37–55% more per build; from 2 to 4 vCPU, 36–46% faster, cost per build +8% to +25%.
Median across providers: from 4 to 8 vCPU, each build ran 22–31% faster for 38–55% more per build; from 2 to 4 vCPU, 36–46% faster, cost per build +8% to +27%.
Median across providers: from 4 to 8 vCPU, each build ran 29–32% faster for 36–42% more per build; from 2 to 4 vCPU, 38–54% faster, cost per build −26% to +23%.
Median across providers: from 4 to 8 vCPU, each build ran 29–32% faster for 36–48% more per build; from 2 to 4 vCPU, 38–54% faster, cost per build −26% to +23%.
- Each line is one provider's runner at 2, 4 and 8 vCPU, its vCPU count in each dot (hollow: under 3 runs so far); RunsOn's is the bold one (m8a / m9g, not its fastest or cheapest).
- Right costs more per build, lower is faster: the shaded corner, bottom left, is where you want to be.
- Dashed lines join equal time × cost. A step that drops more steeply than them bought time cheaply; one that runs flatter mostly bought cost.
Median across providers: 4 → 8 vCPU: 31% faster, +37% cost (9 providers)
2 → 4 vCPU: 36% faster, +25% cost (8 providers)
Median across providers: 4 → 8 vCPU: 31% faster, +38% cost (9 providers)
2 → 4 vCPU: 36% faster, +27% cost (8 providers)
Median across providers: 4 → 8 vCPU: 29% faster, +42% cost (6 providers)
2 → 4 vCPU: 38% faster, +23% cost (7 providers)
Median across providers: 4 → 8 vCPU: 29% faster, +48% cost (6 providers)
2 → 4 vCPU: 38% faster, +23% cost (7 providers)
Median across providers: 4 → 8 vCPU: 22% faster, +55% cost (7 providers)
2 → 4 vCPU: 46% faster, +8% cost (5 providers)
Median across providers: 4 → 8 vCPU: 22% faster, +55% cost (7 providers)
2 → 4 vCPU: 46% faster, +8% cost (5 providers)
Median across providers: 4 → 8 vCPU: 32% faster, +36% cost (5 providers)
2 → 4 vCPU: 54% faster, −26% cost (5 providers)
Median across providers: 4 → 8 vCPU: 32% faster, +36% cost (5 providers)
2 → 4 vCPU: 54% faster, −26% cost (5 providers)
Median across providers: 4 → 8 vCPU: 30% faster, +40% cost (8 providers)
Median across providers: 4 → 8 vCPU: 30% faster, +40% cost (8 providers)
Median across providers: 4 → 8 vCPU: 29% faster, +39% cost (6 providers)
Median across providers: 4 → 8 vCPU: 29% faster, +40% cost (6 providers)
Beyond builds
The same runners, one question each.
- CPU Fastest single-thread on x64: Namespace 4x8, 4,700 PassMark.
- Cache 4 GB restore on x64, any size: RunsOn 10s (12 vCPU), then Blacksmith 13s (8 vCPU); GitHub's own service 28s (8 vCPU).4 GB restore on x64 at 2 vCPU: Blacksmith 14s, then Avrea 15s; GitHub's own service 50s.4 GB restore on x64 at 4 vCPU: Blacksmith 14s, then Avrea 14s; GitHub's own service 34s.4 GB restore on x64 at 8 vCPU: RunsOn 13s, then Blacksmith 13s; GitHub's own service 28s.
- Disk Small random reads (QD1) on x64: Blacksmith 2 vCPU leads with 80,883 per second, 46× the slowest disk (AWS CodeBuild, 1,766). That is a disk's limit, and a build often never reaches it.
- EC2 storage NVMe, gp3 and tmpfs on the same instances, and what each does to the builds above.
- tmpfs The workspace in RAM instead of on a disk: what it does to the builds above, what it costs and where it does nothing.
- CPU Fastest single-thread on arm64: Avrea 2 vCPU, 5,028 PassMark.
- Cache 4 GB restore on arm64, any size: Avrea 11s (8 vCPU), then RunsOn 13s (8 vCPU); GitHub's own service 29s (4 vCPU).4 GB restore on arm64 at 2 vCPU: Avrea 12s, then Warpbuild 28s; GitHub's own service 52s.4 GB restore on arm64 at 4 vCPU: Avrea 12s, then RunsOn 18s; GitHub's own service 29s.4 GB restore on arm64 at 8 vCPU: Avrea 11s, then RunsOn 13s.
- Disk Small random reads (QD1) on arm64: Warpbuild xfast (Apple M4 Pro) 6 vCPU leads with 26,620 per second, 3.2× the slowest disk (GitHub, 8,202). That is a disk's limit, and a build often never reaches it.
- EC2 storage NVMe, gp3 and tmpfs on the same instances, and what each does to the builds above.
- tmpfs The workspace in RAM instead of on a disk: what it does to the builds above, what it costs and where it does nothing.
Providers
Price per minute of a 4 vCPU runner on x64 (its shape beside each price); RunsOn at EC2 spot and on-demand.Price per minute of a 4 vCPU runner on arm64 (its shape beside each price); RunsOn at EC2 spot and on-demand.
Head-to-head
Two runners of the same size, build for build. Cost per build decides: a faster runner that costs twice as much per build is not the better runner.
- RunsOn m8a.xlarge · EBS gp3 GitHub 4-core RunsOn 8.9–11.4× cheaper RunsOn faster on Rust and Docker RunsOn wins
- RunsOn m8a.xlarge · EBS gp3 Blacksmith 4 vCPU RunsOn 2.5–4.3× cheaper RunsOn faster on Rust; Blacksmith faster on Docker RunsOn on cost
- RunsOn m8a.xlarge · EBS gp3 Namespace 4x16 RunsOn 3.5–5.0× cheaper Namespace faster on Docker RunsOn on cost
- Blacksmith 4 vCPU Namespace 4x16 Blacksmith 1.2–1.7× cheaper no clear time winner Blacksmith wins
- Warpbuild 4 vCPU Blacksmith 4 vCPU Blacksmith 1.1–1.4× cheaper Blacksmith faster on TypeScript and Docker Blacksmith wins
- RunsOn m9g.xlarge · EBS gp3 Blacksmith 4 vCPU RunsOn 3.9–6.4× cheaper and 1.5–2.6× faster RunsOn wins arm64
Cost per build is variable cost only; licenses and plan fees are flat, on each provider's page. Estimate your bill