sds / overcommit / 42086511738
92%
master: 91%

LAST BUILD BRANCH: main
DEFAULT BRANCH: master
Ran
Jobs 18
Files 223
Run time 1min
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Rst
coverage: 92.408%. Remained the same
42086511738

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Allocate more CI runners to Windows with asymmetric sharding (#916)

Allocate one Linux shard and five Windows shards per supported Ruby
version instead of three shards for both operating systems. This keeps
18 test jobs and full Ruby/OS coverage while assigning more of the
available runners to the Windows bottleneck. Extend the shard-selector
examples to cover five shards.

GitHub CI measurements:

| Configuration | Complete workflow |
| --- | --- |
| [Current main, fresh control
rerun](https://github.com/sds/overcommit/actions/runs/41994457781/attempts/2)
| 2m 17s |
| [Asymmetric
benchmark](https://github.com/sds/overcommit/actions/runs/42083950149) |
1m 58s |
| [PR
confirmation](https://github.com/sds/overcommit/actions/runs/42085029514)
| 1m 59s |
| [Final head
verification](https://github.com/sds/overcommit/actions/runs/42085706295)
| 1m 45s |

All three candidate runs are faster than the fresh control. Final
verification passes every test job, lint, coverage finalization, the
required CI check, and external coverage statuses. Logs verify the
complete 1,698-example suite on each of six Ruby/OS combinations (10,188
executions), with matching discovery identities across shards. Local
shard-selector examples, RuboCop, and actionlint pass.

Coverage flags identify the Ruby/OS/shard index and shard count rather
than global matrix position, so changing the shard layout does not
compare partial coverage against unrelated old shards. Combined coverage
remains unchanged at 92.408%.

3323 of 3596 relevant lines covered (92.41%)

2724.07 hits per line

Jobs
ID Job ID Ran Files Coverage
1 ruby3.4-windows-shard3of5 - 42086511738.1 446
77.61
GitHub Action Run
2 ruby3.4-windows-shard1of5 - 42086511738.2 446
71.71
GitHub Action Run
3 ruby3.4-windows-shard2of5 - 42086511738.3 446
72.16
GitHub Action Run
4 ruby4.0-windows-shard1of5 - 42086511738.4 446
71.71
GitHub Action Run
5 ruby4.0-windows-shard3of5 - 42086511738.5 446
77.61
GitHub Action Run
6 ruby3.4-windows-shard5of5 - 42086511738.6 446
73.32
GitHub Action Run
7 ruby3.3-windows-shard3of5 - 42086511738.7 446
77.64
GitHub Action Run
8 ruby3.4-windows-shard4of5 - 42086511738.8 446
73.41
GitHub Action Run
9 ruby3.3-windows-shard1of5 - 42086511738.9 446
71.73
GitHub Action Run
10 ruby3.3-windows-shard2of5 - 42086511738.10 446
72.21
GitHub Action Run
11 ruby4.0-windows-shard4of5 - 42086511738.11 446
73.41
GitHub Action Run
12 ruby3.3-windows-shard4of5 - 42086511738.12 446
73.43
GitHub Action Run
13 ruby4.0-windows-shard5of5 - 42086511738.13 446
73.32
GitHub Action Run
14 ruby4.0-ubuntu-shard1of1 - 42086511738.14 446
92.38
GitHub Action Run
15 ruby3.3-windows-shard5of5 - 42086511738.15 446
73.38
GitHub Action Run
16 ruby3.4-ubuntu-shard1of1 - 42086511738.16 446
92.38
GitHub Action Run
17 ruby4.0-windows-shard2of5 - 42086511738.17 446
72.16
GitHub Action Run
18 ruby3.3-ubuntu-shard1of1 - 42086511738.18 446
92.37
GitHub Action Run
Source Files on build 42086511738