Bug 62979 – Web Inspector: [Chromium] Improve speed of heap profiles dominators view

• Status: RESOLVED
• Resolution: FIXED
• Component: Web Inspector (Deprecated)

[Mikhail Naganov]

Currently in snapshot we only have a dominator index, which makes calculation of dominated nodes on the fly expensive.
Solved by building a back index.

[Mikhail Naganov]

Created attachment 97784 [details]
patch

[Mikhail Naganov]

Manually committed http://trac.webkit.org/changeset/89457


2011-06-20  Mikhail Naganov  <[e-mail]>

        Reviewed by Pavel Feldman.

        Web Inspector: [Chromium] Improve speed of heap profiles dominators view.
        https://bugs.webkit.org/show_bug.cgi?id=62979

        * inspector/front-end/DetailedHeapshotGridNodes.js:
        (WebInspector.HeapSnapshotDominatorObjectNode.prototype._createProvider):
        * inspector/front-end/HeapSnapshot.js:
        (WebInspector.HeapSnapshotArraySlice.prototype.item):
        (WebInspector.HeapSnapshotArraySlice.prototype.slice):
        (WebInspector.HeapSnapshot.prototype.dispose):
        (WebInspector.HeapSnapshot.prototype._dominatedNodesOfNode):
        (WebInspector.HeapSnapshot.prototype._buildReverseIndex.var):
        (WebInspector.HeapSnapshot.prototype._buildReverseIndex):
        (WebInspector.HeapSnapshot.prototype._buildRetainers):
        (WebInspector.HeapSnapshot.prototype._buildNodeIndex):
        (WebInspector.HeapSnapshot.prototype._buildDominatedNodes):
        (WebInspector.HeapSnapshot.prototype._getDominatedIndex):
        (WebInspector.HeapSnapshot.prototype.createNodesProviderForClass):
        (WebInspector.HeapSnapshot.prototype.createNodesProviderForDominator):
        (WebInspector.HeapSnapshotFilteredOrderedIterator):
        (WebInspector.HeapSnapshotFilteredOrderedIterator.prototype._createIterationOrder):
        (WebInspector.HeapSnapshotFilteredOrderedIterator.prototype.get length):
        (WebInspector.HeapSnapshotFilteredOrderedIterator.prototype.serializeNextItems):
        (WebInspector.HeapSnapshotNodesProvider):
        * inspector/front-end/HeapSnapshotProxy.js:
        (WebInspector.HeapSnapshotProxy.prototype.createNodesProviderForDominator):