[chromium-dev] Re: XP Perf page load regression on morejs and moz page cyclers

2009-10-01 Thread Darin Fisher
Note: my change was reverted for other reasons.-Darin On Thu, Oct 1, 2009 at 7:58 AM, Chase Phillips ch...@chromium.org wrote: Hey everyone, A performance regression has appeared on the XP Perf bot in the morejs page cycler. Along with turning XP Perf red, the perf regression system notified

[chromium-dev] Re: XP Perf page load regression on morejs and moz page cyclers

2009-10-01 Thread Mike Belshe
Probably caused by jemalloc. Jim was experimenting with the idea of getting some dev-channel data from using jemalloc as opposed to tcmalloc. I'm not surprised there was a perf delta, but I am surprised by how much. The DOM benchmark in this test dropped by 8%. Several other benchmarks took

[chromium-dev] Re: XP Perf page load regression on morejs and moz page cyclers

2009-10-01 Thread Jim Roskind
I'm quite sure it is jemalloc. I failed miserably by not over-communicating this checkin. My apologies to all that I have inconvenience. We have just this week identified a number of misteps in our use of TCMalloc. I think that we can eventually reach an excellent result with TCMalloc... and we

[chromium-dev] Re: XP Perf page load regression on morejs and moz page cyclers

2009-10-01 Thread Scott Hess
I think we should be willing to take a temporary performance hit on the dev channel in the interests of generating data which will eventually improve stability. Could we set jemalloc on selected renderer processes? I realize that wouldn't necessarily only impact the target domains, but it might

[chromium-dev] Re: XP Perf page load regression on morejs and moz page cyclers

2009-10-01 Thread Mike Belshe
On Thu, Oct 1, 2009 at 11:27 AM, Scott Hess sh...@chromium.org wrote: I think we should be willing to take a temporary performance hit on the dev channel in the interests of generating data which will eventually improve stability. Could we set jemalloc on selected renderer processes? I

[chromium-dev] Re: XP Perf page load regression on morejs and moz page cyclers

2009-10-01 Thread Scott Hess
On Thu, Oct 1, 2009 at 11:32 AM, Mike Belshe mbel...@google.com wrote: On Thu, Oct 1, 2009 at 11:27 AM, Scott Hess sh...@chromium.org wrote: Could we set jemalloc on selected renderer processes?  I realize that wouldn't necessarily only impact the target domains, but it might be better than

[chromium-dev] Re: XP Perf page load regression on morejs and moz page cyclers

2009-10-01 Thread Jeremy Orlow
On Thu, Oct 1, 2009 at 12:38 PM, Scott Hess sh...@chromium.org wrote: On Thu, Oct 1, 2009 at 11:32 AM, Mike Belshe mbel...@google.com wrote: On Thu, Oct 1, 2009 at 11:27 AM, Scott Hess sh...@chromium.org wrote: Could we set jemalloc on selected renderer processes? I realize that wouldn't

[chromium-dev] Re: XP Perf page load regression on morejs and moz page cyclers

2009-10-01 Thread Chase Phillips
Thanks Darin, Mike, and Jim for the quick response. Sounds like we'll have this in the trunk for a couple days at least if not longer, so I updated the XP perf expectation. The builder should stay green for now. On Thu, Oct 1, 2009 at 7:58 AM, Chase Phillips ch...@chromium.org wrote: Hey