[Webkit-unassigned] [Bug 86718] New: Web Inspector: HeapSnapshot: speed-up calculateObjectToWindowDistance

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=86718

           Summary: Web Inspector: HeapSnapshot: speed-up
                    calculateObjectToWindowDistance
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: All
        OS/Version: All
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: Web Inspector
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: loislo at chromium.org
                CC: timothy at apple.com, rik at webkit.org, keishi at webkit.org,
                    pmuellr at yahoo.com, joepeck at webkit.org,
                    pfeldman at chromium.org, yurys at chromium.org,
                    bweinstein at apple.com, apavlov at chromium.org,
                    loislo at chromium.org


The idea is to switch from nodeIndex2distance array to nodeOrdinal2distance external array.
Due to nature of nodeIndex values the original array was sparsed.

RESULT heap-snapshot: _calculateObjectToWindowDistance= 768 ms
vs
RESULT heap-snapshot: _calculateObjectToWindowDistance= 110 ms

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