[Webkit-unassigned] [Bug 154593] New: Huge memory usage (~10GB RAM) when running Dromaeo JavaScript Library Tests

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Tue Feb 23 10:16:18 PST 2016


            Bug ID: 154593
           Summary: Huge memory usage (~10GB RAM) when running Dromaeo
                    JavaScript Library Tests
    Classification: Unclassified
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: clopez at igalia.com
                CC: bugs-noreply at webkitgtk.org, cgarcia at igalia.com,
                    mcatanzaro at igalia.com

I have noticed that when running the Dromaeo JavaScript Library Tests <http://dromaeo.com/?jslib> WebKit consumes a lot of memory (around [8-10]GB of RAM).

It seems that the huge increase of RAM usage happens when running the subtests "DOM Modification (jquery)".

I am able to reproduce this both with the WebKitGTK+ MiniBrowser as also with Safari on MacOS when running with WebKit from trunk (r196976).

With the WebKitGTK+ MiniBrowser from the stable branch (2.10.7 branched in r188381 <http://trac.webkit.org/wiki/WebKitGTK/2.10.x>) the memory usage is a bit better, peaks around ~[4-5]GB.

With Safari from the system (MacOS 10.10.5) the memory usage is around ~3GB.

Chromium consumes around ~3GB, and Firefox consumes "only" ~1GB.

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