Yeah, 10MB was just a test to see if it makes sense to place them based on their allocation order and despite their sizes. I just got the test results for jemalloc arena, the result looks good. Talso: https://treeherder.mozilla.org/perf.html#/compare?originalProject=try&originalRevision=621f3eafaf3a8c5b179071440532ddc0d11984f7&newProject=try&newRevision=3f4e0d61a36fe2732d809c73106ce73feb301e8d, quite a few high confidence improvements, also some med improvements, and no high confidence regressions. However, some subtests regressed, for example https://treeherder.mozilla.org/perf.html#/comparesubtest?originalProject=try&newProject=try&newRevision=3f4e0d61a36fe2732d809c73106ce73feb301e8d&originalSignature=1657197&newSignature=1657197&framework=1&originalRevision=621f3eafaf3a8c5b179071440532ddc0d11984f7 raptor: https://treeherder.mozilla.org/perf.html#/compare?originalProject=try&originalRevision=621f3eafaf3a8c5b179071440532ddc0d11984f7&newProject=try&newRevision=3f4e0d61a36fe2732d809c73106ce73feb301e8d&framework=10, no high confidence changes, a few med confidences improvements/regressions.
Bug 1377999 Comment 32 Edit History
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Yeah, 10MB was just a test to see if it makes sense to place them based on their allocation order, despite their sizes. I just got the test results for jemalloc arena, the result looks good. Talso: https://treeherder.mozilla.org/perf.html#/compare?originalProject=try&originalRevision=621f3eafaf3a8c5b179071440532ddc0d11984f7&newProject=try&newRevision=3f4e0d61a36fe2732d809c73106ce73feb301e8d, quite a few high confidence improvements, also some med improvements, and no high confidence regressions. However, some subtests regressed, for example https://treeherder.mozilla.org/perf.html#/comparesubtest?originalProject=try&newProject=try&newRevision=3f4e0d61a36fe2732d809c73106ce73feb301e8d&originalSignature=1657197&newSignature=1657197&framework=1&originalRevision=621f3eafaf3a8c5b179071440532ddc0d11984f7 raptor: https://treeherder.mozilla.org/perf.html#/compare?originalProject=try&originalRevision=621f3eafaf3a8c5b179071440532ddc0d11984f7&newProject=try&newRevision=3f4e0d61a36fe2732d809c73106ce73feb301e8d&framework=10, no high confidence changes, a few med confidences improvements/regressions.