On 10/10/2012 11:57 PM, Justin Lebar wrote: > The main reason I'd want Linux PGO is for mobile. On desktop Linux, > most users (I expect) don't run our builds, so it's not a big deal if > they're some percent slower. (Unless distros commonly do PGO builds > of Firefox?) But we're not doing mobile Linux PGO builds (that I know > of), and I don't expect success with desktop PGO is much related to > success with mobile PGO.
You may be right for release builds but that doesn't hold true for Nightly/Aurora/Beta users. I don't think it's a good idea to make those builds ~20% slower when of course we want and need more testers. Don't forget that testers on Linux do not only test Linux-only features but also features we have on every platform. Nobody likes running debug builds because they're slower so why would that be different for non-PGO builds? Also, I'm not sure how this affects Telemetry results. In terms of perf measurements we'd probably need to completely ignore everything from non-release builds as the results might differ heavily for some use cases. - Tim _______________________________________________ dev-platform mailing list dev-platform@lists.mozilla.org https://lists.mozilla.org/listinfo/dev-platform
