On Thursday, October 8, 2015 at 10:02:02 AM UTC-7, [email protected] wrote:
> We recently disabled Linux32 talos testing on all trees.
>
> Going forward, the question remains, do we need to run Linux32 tests at all? This would reduce the complexity of our configs, as well as significantly reduce our AWS bill. Do the linux32 test results provide significant differences from the ones we run on on linux64? I see three options going forward
>
> 1) Run linux32 builds and tests periodically
> 2) Turn off tests but run the builds and make it a Tier 2 platform
> 3) Turn off Linux32 builds + tests entirely
>
> Your data-driven input is sought,
>
> cheers,
> Kim
>
> Bugs of note
> Disable all 32-bit linux testing
> https://bugzilla.mozilla.org/show_bug.cgi?id=1209932
> Do we need linux32 talos?
> https://bugzilla.mozilla.org/show_bug.cgi?id=1204920
> Disable linux32 talos testing and reimage machines for windows testing
> https://bugzilla.mozilla.org/show_bug.cgi?id=1208449
If AWS cost is a big concern, I wouldn't look at Linux 32 usage versus Linux 64 usage, but Linux versus other platforms. According to Telemetry, Linux has about 0.2% market share on Desktop, which means Windows has around 500X more users. Given that, it seems like we should not give Linux a large slice of infrastructure time, outside of the internal analysis builds like ASAN.
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