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
