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Run iOS RNTester E2E tests on Apple Silicon runners - #59642
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The E2E jobs ran on macos-26-large, the Intel x86_64 runner: the iOS
simulator ran under x86_64 and rendered in software ("GL pipe is running
in software mode" in every log), and the -large runners are billed at a
premium.
Run them on the standard arm64 macos-26 runner instead, where the
simulator runs natively with GPU rendering and which isn't billed for
public repositories. RNTesterApp-NewArch-{Debug,Release} are already
universal (x86_64 + arm64 for the app and all its frameworks), so the
build job doesn't need to change.
If the 3-core standard runner turns out to be too slow, macos-26-xlarge
(arm64, 5 cores) is the fallback.
This was referenced Oct 29, 2026
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Stack (iOS RNTester E2E cost, review bottom-up):
Summary:
Part 8 of the iOS E2E cost stack.
The RNTester E2E jobs ran on
macos-26-large, the Intel x86_64 runner. The simulator ran under x86_64 and rendered in software ("GL pipe is running in software mode" appears in all 24 job logs I checked), and the-largerunners are billed at a premium.Run them on the standard arm64
macos-26runner instead. The simulator runs natively with GPU rendering, and standard GitHub-hosted runners aren't billed for public repositories.RNTesterApp-NewArch-{Debug,Release}are already universal (liposhows x86_64 + arm64 for the app binary,hermesvm,ReactandReactNativeDependencies), so the build job doesn't change.If the 3-core standard runner is too slow,
macos-26-xlarge(arm64, 5 cores) is the fallback. The template app E2E is unchanged.Changelog:
[INTERNAL] [CHANGED] - Run iOS RNTester E2E tests on Apple Silicon runners
Test Plan:
lipo -info.macos-26; compare their duration withmacos-26-largeonmain.