[Webkit-unassigned] [Bug 186709] New: SimpleLineLayout::FlowContents wastes 54KB of Vector capacity on nytimes.com

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=186709

            Bug ID: 186709
           Summary: SimpleLineLayout::FlowContents wastes 54KB of Vector
                    capacity on nytimes.com
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Layout and Rendering
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: simon.fraser at apple.com
                CC: bfulgham at webkit.org, simon.fraser at apple.com,
                    zalan at apple.com

Tooling from bug 186698:

Wasted capacity: 54096 bytes (used 7728 of 61824 bytes, utilization: 12.50%) - 161 allocations
1   0x108927092 WTF::VectorBuffer<WebCore::SimpleLineLayout::FlowContents::Segment, 8ul>::VectorBuffer(unsigned long, unsigned long)
2   0x108926fa8 WTF::Vector<WebCore::SimpleLineLayout::FlowContents::Segment, 8ul, WTF::CrashOnOverflow, 16ul>::Vector<0ul, WTF::CrashOnOverflow, 16ul>(WTF::Vector<WebCore::SimpleLineLayout::FlowContents::Segment, 0ul, WTF::CrashOnOverflow, 16ul> const&)
3   0x1088faaed WTF::Vector<WebCore::SimpleLineLayout::FlowContents::Segment, 8ul, WTF::CrashOnOverflow, 16ul>::Vector<0ul, WTF::CrashOnOverflow, 16ul>(WTF::Vector<WebCore::SimpleLineLayout::FlowContents::Segment, 0ul, WTF::CrashOnOverflow, 16ul> const&)
4   0x1088fa790 WebCore::SimpleLineLayout::FlowContents::FlowContents(WebCore::RenderBlockFlow const&)
5   0x1088fab3d WebCore::SimpleLineLayout::FlowContents::FlowContents(WebCore::RenderBlockFlow const&)
6   0x10892f8a6 WebCore::SimpleLineLayout::RunResolver::RunResolver(WebCore::RenderBlockFlow const&, WebCore::SimpleLineLayout::Layout const&)
7   0x10892f9c5 WebCore::SimpleLineLayout::RunResolver::RunResolver(WebCore::RenderBlockFlow const&, WebCore::SimpleLineLayout::Layout const&)
8   0x1088f8309 WebCore::SimpleLineLayout::Layout::runResolver() const

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