Yes, this is wonderful, thank you so much! Improvements to build times are a force-multiplier. 5%-15% improvements in our build times is no joke!
On Thu, 9 Apr 2020 at 13:09, Botond Ballo <bba...@mozilla.com> wrote: > Thanks, compile time improvements are always good news! > > Out of curiosity, does this impact builds targeting Android on Linux or > Windows? > > Thanks, > Botond > > On Thu, Apr 9, 2020 at 12:52 PM David Major <dma...@mozilla.com> wrote: > > > > As of bug 1326486, our clang toolchains for Linux and Windows are built > > with PGO. (Apologies to Mac users: that toolchain is cross-compiled.) > > > > Under optimal conditions (Spidermonkey build, touch mfbt) I've seen > 10-15% > > compile time improvements locally, but in more common scenarios the gains > > will be diluted by other parts of the system. Perfherder measured 5-9% > > improvements in CI. > > > > To pick up a new compiler: after the next time you update your tree, run > > `./mach bootstrap` or `cd ~/.mozbuild && /path/to/mach artifact toolchain > > --from-build linux64-clang`, or on Windows replace the last part with > > `win64-clang-cl`. > > > > Happy compiling! > > _______________________________________________ > > dev-platform mailing list > > dev-platform@lists.mozilla.org > > https://lists.mozilla.org/listinfo/dev-platform > _______________________________________________ > dev-platform mailing list > dev-platform@lists.mozilla.org > https://lists.mozilla.org/listinfo/dev-platform > _______________________________________________ dev-platform mailing list dev-platform@lists.mozilla.org https://lists.mozilla.org/listinfo/dev-platform
