[Webkit-unassigned] [Bug 251726] New: LayoutIntegration::BoxTree::m_renderers wastes 16KB of vector capacity

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=251726

            Bug ID: 251726
           Summary: LayoutIntegration::BoxTree::m_renderers wastes 16KB of
                    vector capacity
           Product: WebKit
           Version: WebKit Local 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

Using the patch in bug 186698, and testing on a wikipedia page, we see that LayoutIntegration::BoxTree::m_renderers wastes 16KB of vector capacity:

Wasted capacity: 16016 bytes (used 29136 of 45152 bytes, utilization: 64.53%) - 216 allocations
5   0x82651c1a4 WTF::VectorBuffer<WTF::WeakPtr<WebCore::RenderObject, WTF::DefaultWeakPtrImpl>, 1ul, WTF::FastMalloc>::VectorBuffer()
6   0x82651c135 WTF::Vector<WTF::WeakPtr<WebCore::RenderObject, WTF::DefaultWeakPtrImpl>, 1ul, WTF::CrashOnOverflow, 16ul, WTF::FastMalloc>::Vector()
7   0x8264fa035 WTF::Vector<WTF::WeakPtr<WebCore::RenderObject, WTF::DefaultWeakPtrImpl>, 1ul, WTF::CrashOnOverflow, 16ul, WTF::FastMalloc>::Vector()
8   0x8264f9ec8 WebCore::LayoutIntegration::BoxTree::BoxTree(WebCore::RenderBlock&)
9   0x8264fa90d WebCore::LayoutIntegration::BoxTree::BoxTree(WebCore::RenderBlock&)
10  0x8265479ce WebCore::LayoutIntegration::LineLayout::LineLayout(WebCore::RenderBlockFlow&)
11  0x826547b8d WebCore::LayoutIntegration::LineLayout::LineLayout(WebCore::RenderBlockFlow&)
12  0x827299fde std::__1::__unique_if<WebCore::LayoutIntegration::LineLayout>::__unique_single std::__1::make_unique<WebCore::LayoutIntegration::LineLayout, WebCore::RenderBlockFlow&>(WebCore::RenderBlockFlow&)

-- 
You are receiving this mail because:
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.webkit.org/pipermail/webkit-unassigned/attachments/20230204/8d9fca80/attachment.htm>