The old heap profiler bugs have closed: (see these for history) <http://webkit.org/b/28429> Adding Heap profiler page to Web Inspector <http://webkit.org/b/44531> Web Inspector: Store heap snapshots in InspectorProfilerAgent This tracks implementing it in JSC. Currently there is a stub implementation in: WebCore/bindings/js/ScriptHeapSnapshot.h The UI for this feature is disabled behind a WebInspector Preference in inspector.js, which would could be removed (including chromium's enabling code in WebKit/chromium/src/js/DevTools.js) > WebCore/inspector/front-end/inspector.js > 237: if (Preferences.heapProfilerPresent)
<rdar://problem/9547081>
Heap Snapshots have been implemented as part of the Heap domain. Closing.