[Webkit-unassigned] [Bug 224253] New: CSSValueList inline capacity causes vector wastage
bugzilla-daemon at webkit.org
bugzilla-daemon at webkit.org
Tue Apr 6 17:09:09 PDT 2021
https://bugs.webkit.org/show_bug.cgi?id=224253
Bug ID: 224253
Summary: CSSValueList inline capacity causes vector wastage
Product: WebKit
Version: Safari Technology Preview
Hardware: Unspecified
OS: Unspecified
Status: NEW
Severity: Normal
Priority: P2
Component: CSS
Assignee: webkit-unassigned at lists.webkit.org
Reporter: simon.fraser at apple.com
Total capacity: 35648 bytes (used 11024, wasted 24624), utilization: 30.92%) - 1090 allocations, entry size 8 bytes
1 0x1061c4ac0 WebCore::CSSValueList::CSSValueList(WebCore::CSSValue::ValueSeparator)
2 0x106227bf8 WebCore::CSSPropertyParser::consumeAnimationShorthand(WebCore::StylePropertyShorthand const&, bool)
3 0x10622517b WebCore::CSSPropertyParser::parseShorthand(WebCore::CSSPropertyID, bool)
4 0x10621764b WebCore::CSSPropertyParser::parseValueStart(WebCore::CSSPropertyID, bool)
5 0x106215db1 WebCore::CSSPropertyParser::parseValue(WebCore::CSSPropertyID, bool, WebCore::CSSParserTokenRange const&, WebCore::CSSParserContext const&, WTF::Vector<WebCore::CSSProperty, 256ul, WTF::CrashOnOverflow, 16ul, WTF::FastMalloc>&, WebCore::StyleRuleType)
6 0x10620eff1 WebCore::CSSParserImpl::consumeDeclaration(WebCore::CSSParserTokenRange, WebCore::StyleRuleType)
7 0x10620d3d2 WebCore::CSSParserImpl::consumeDeclarationList(WebCore::CSSParserTokenRange, WebCore::StyleRuleType)
8 0x1062109bc WebCore::CSSParserImpl::consumeStyleRule(WebCore::CSSParserTokenRange, WebCore::CSSParserTokenRange)
9 0x10620de75 WebCore::CSSParserImpl::consumeQualifiedRule(WebCore::CSSParserTokenRange&, WebCore::CSSParserImpl::AllowedRulesType)
10 0x106205e06 WebCore::CSSParserImpl::parseStyleSheet(WTF::String const&, WebCore::CSSParserContext const&, WebCore::StyleSheetContents*, WebCore::CSSParser::RuleParsing)
11 0x1061fdd92 WebCore::StyleSheetContents::parseAuthorStyleSheet(WebCore::CachedCSSStyleSheet const*, WebCore::SecurityOrigin const*)
12 0x10650960a WebCore::HTMLLinkElement::setCSSStyleSheet(WTF::String const&, WTF::URL const&, WTF::String const&, WebCore::CachedCSSStyleSheet const*)
35KB wasted on YouTube.com because CSSValueList has inline capacity:
Vector<Ref<CSSValue>, 4> m_values;
Many keyframe lists just have 2 keyframes.
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