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<Regression> Mozilla-Inbound - Tp4 Mobile NoChrome (Main RSS) - Android 2.2 (Native) - 37%

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nob...@cruncher.build.mozilla.org

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May 20, 2013, 3:20:35 PM5/20/13
to dev-tree-...@lists.mozilla.org
Regression: Mozilla-Inbound - Tp4 Mobile NoChrome (Main RSS) - Android 2.2 (Native) - 37% increase
--------------------------------------------------------------------------------------------------
Previous: avg 90637775.000 stddev 593265.832 of 12 runs up to revision be1d72a1f228
New : avg 124135500.000 stddev 572542.734 of 12 runs since revision ef5b7b1039ac
Change : +33497725.000 (37% / z=56.463)
Graph : http://mzl.la/16FEZ3w

Changeset range: http://hg.mozilla.org/integration/mozilla-inbound/pushloghtml?fromchange=be1d72a1f228&tochange=ef5b7b1039ac

Changesets:
* http://hg.mozilla.org/integration/mozilla-inbound/rev/ef5b7b1039ac
: Mike Hommey <mh+mo...@glandium.org> - Bug 848764 - Enable on-demand decompression. r=blassey
: http://bugzilla.mozilla.org/show_bug.cgi?id=848764

Bugs:
* http://bugzilla.mozilla.org/show_bug.cgi?id=848764 - Enable on-demand decompression

nob...@cruncher.build.mozilla.org

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May 20, 2013, 3:41:59 PM5/20/13
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Regression: Mozilla-Inbound - Tp4 Mobile NoChrome (Main RSS) - Android 4.0.4 - 27.3% increase
---------------------------------------------------------------------------------------------
Previous: avg 123472500.000 stddev 366740.805 of 12 runs up to revision be1d72a1f228
New : avg 157147250.000 stddev 255502.758 of 12 runs since revision ef5b7b1039ac
Change : +33674750.000 (27.3% / z=91.822)
Graph : http://mzl.la/16FJQ4w

Mike Hommey

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May 20, 2013, 4:47:47 PM5/20/13
to nob...@cruncher.build.mozilla.org, dev-tree-...@lists.mozilla.org
On Mon, May 20, 2013 at 07:20:35PM -0000, nob...@cruncher.build.mozilla.org wrote:
> Regression: Mozilla-Inbound - Tp4 Mobile NoChrome (Main RSS) - Android 2.2 (Native) - 37% increase
> --------------------------------------------------------------------------------------------------
> Previous: avg 90637775.000 stddev 593265.832 of 12 runs up to revision be1d72a1f228
> New : avg 124135500.000 stddev 572542.734 of 12 runs since revision ef5b7b1039ac
> Change : +33497725.000 (37% / z=56.463)
> Graph : http://mzl.la/16FEZ3w

As noted in bug 848764 comment 10, this is expected. This measure is
counting the decompressed library memory twice because there are now
two different views of it mapped simultaneously, while there was only
one before. Measuring PSS instead of RSS would show no regression,
although it would have other problems (influence of other processes on
memory usage)

Mike
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