we have 32 bit windows builds, are there specific concerns you have about the perf impact of SSE2 and linux32 builds?
On Fri, May 20, 2016 at 7:14 AM, Mike Hommey <m...@glandium.org> wrote: > On Thu, Sep 24, 2015 at 06:40:08PM -0700, jma...@mozilla.com wrote: > > Our infrastructure at Mozilla does a great job of supporting all the > > jobs we need to run jobs for the thousands of pushes we do each month. > > Currently Talos runs on real hardware (and we have no plans to change > > that), but it does mean that we have a limited pool of available > > machines. Right now this isn't a problem for Linux 32 or 64 since we > > don't run any other jobs on those platforms. > > > > The problem we do have is on OSX and Windows, and in the last 2 weeks > > we have had a big problem with backlog on Windows. The main reason we > > have a problem on OSX and Windows is because we run all the unit tests > > on there as well. Granted we have a larger pool of machines, but we > > run a considerably larger volume of tests on there. > > > > Trying to be smart about what we are doing, bug 1204920 [1] was filed > > to look into what would happen if we stopped running Talos on Linux32. > > We would still have OSX, Windows, and Linux64 support and from looking > > at all the data for the last 90 days, there are very few minor > > differences between 32 and 64 when it comes to catching regressions. > > > > After looking into this, we realized that we could reimage the linux32 > > machines as windows machines- this would then solve our backlog and > > give us some breathing room on capacity until we find other ways to > > reduce the load or make a more formal decision to increase the machine > > pool. > > > > Sadly there are really no plans to formally add back Linux32 support. > > What does Linux32 give us that Linux64 doesn't when it comes to Talos > > results? I am looking at this from a narrow lens, quite possibly > > someone else has ideas of what might be more useful. Overall we are > > serious about doing this, but want to do it knowing more so at what > > cost. > > > > Thanks for reading and fixing Performance regressions when they show > > up in your patches! > > And here we are, 8 months later, deciding to compile linux32 builds with > SSE2, and no way to know what impact that has on performance... > > Mike > _______________________________________________ dev-platform mailing list dev-platform@lists.mozilla.org https://lists.mozilla.org/listinfo/dev-platform
