Bug 104177 – 4% regression in dom_perf/CloneNodes

• Status: RESOLVED
• Resolution: WONTFIX
• Component: DOM

[Ojan Vafai]

http://build.chromium.org/f/chromium/perf/mac-release-10.6-webkit-latest/dom_perf/report.html?graph=CloneNodes&history=50&rev=170977

http://build.chromium.org/f/chromium/perf/mac-release-10.6-webkit-latest/dom_perf/report.html?rev=170977&graph=CloneNodes&history=50

Regression range: http://trac.webkit.org/log/?verbose=on&rev=136488&stop_rev=136476

Looks likely to be http://trac.webkit.org/changeset/136481/ or possibly http://trac.webkit.org/changeset/136479/.

[Ojan Vafai]

Also shows on the main chromium waterfalls after the webkit roll:

http://build.chromium.org/f/chromium/perf/mac-release-10.6/dom_perf/report.html?graph=CloneNodes&history=100&rev=171318

http://build.chromium.org/f/chromium/perf/chromium-rel-win7-dual/dom_perf/report.html?graph=CloneNodes&history=100&rev=171318

http://build.chromium.org/f/chromium/perf/xp-release-single-core/dom_perf/report.html?graph=CloneNodes&history=100&rev=171318

http://build.chromium.org/f/chromium/perf/xp-release-dual-core/dom_perf/report.html?graph=CloneNodes&history=100&rev=171318

[Kentaro Hara]

(In reply to comment #0)
> Looks likely to be http://trac.webkit.org/changeset/136481/ or possibly http://trac.webkit.org/changeset/136479/.

Thanks for watching the perf. Looks likely to be r136481. Let me try a speculative roll out.

[Adam Barth]

Yeah, http://trac.webkit.org/changeset/136479/ should only affect workers.

[Ahmad Saleem]

This report is too old to be actionable at this point. We might have already actioned / fixed this. Apple will also have internal performance tracking as well (which might have this coverage).

Marking this as 'RESOLVED WONTFIX'. Please reopen if you think we still can do something here.