[Webkit-unassigned] [Bug 80634] New: Investigate adding instrumentation to our style sharing code

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=80634

           Summary: Investigate adding instrumentation to our style
                    sharing code
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: CSS
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: jchaffraix at webkit.org
                CC: koivisto at iki.fi, kling at webkit.org


Currently, we don't know how much saving we are making (performance or memory wise), lest the percentage of styles that are shared between elements.

Style sharing is improving performance as we don't need to re-apply our styles yet we don't want to make canShareStyleWithElement slow. Instrumenting would give us more insight into how to make this trade-off.

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