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Do a second pass on the sharing cache to reuse style by rule node identity.

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MozReview-Commit-ID: H67j3Sbt3gr
This commit is contained in:
Bobby Holley 2017-09-08 16:03:24 -07:00
parent 7a7070e075
commit 1c9b39a8e8
6 changed files with 122 additions and 8 deletions
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5
components/style/context.rs
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@ -313,6 +313,9 @@ pub struct TraversalStatistics {
pub elements_matched: u32,
/// The number of cache hits from the StyleSharingCache.
pub styles_shared: u32,
/// The number of styles reused via rule node comparison from the
/// StyleSharingCache.
pub styles_reused: u32,
/// The number of selectors in the stylist.
pub selectors: u32,
/// The number of revalidation selectors.
@ -347,6 +350,7 @@ impl<'a> ops::Add for &'a TraversalStatistics {
elements_styled: self.elements_styled + other.elements_styled,
elements_matched: self.elements_matched + other.elements_matched,
styles_shared: self.styles_shared + other.styles_shared,
styles_reused: self.styles_reused + other.styles_reused,
selectors: 0,
revalidation_selectors: 0,
dependency_selectors: 0,
@ -374,6 +378,7 @@ impl fmt::Display for TraversalStatistics {
writeln!(f, "[PERF],elements_styled,{}", self.elements_styled)?;
writeln!(f, "[PERF],elements_matched,{}", self.elements_matched)?;
writeln!(f, "[PERF],styles_shared,{}", self.styles_shared)?;
writeln!(f, "[PERF],styles_reused,{}", self.styles_reused)?;
writeln!(f, "[PERF],selectors,{}", self.selectors)?;
writeln!(f, "[PERF],revalidation_selectors,{}", self.revalidation_selectors)?;
writeln!(f, "[PERF],dependency_selectors,{}", self.dependency_selectors)?;