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Bug 1331856 - Add style performance statistics to Servo. r=emilio

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MozReview-Commit-ID: ECHZgYNA8nb
This commit is contained in:
Bobby Holley 2017-01-18 19:03:19 -08:00
parent 3a8167350b
commit 5370224877
5 changed files with 95 additions and 29 deletions
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26
components/style/parallel.rs
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@ -22,13 +22,13 @@
#![deny(missing_docs)]
use context::TraversalStatistics;
use dom::{OpaqueNode, SendNode, TElement, TNode};
use rayon;
use scoped_tls::ScopedTLS;
use servo_config::opts;
use std::sync::atomic::Ordering;
use std::borrow::Borrow;
use traversal::{DomTraversal, PerLevelTraversalData, PreTraverseToken};
use traversal::{STYLE_SHARING_CACHE_HITS, STYLE_SHARING_CACHE_MISSES};
/// The chunk size used to split the parallel traversal nodes.
///
@ -45,11 +45,6 @@ pub fn traverse_dom<E, D>(traversal: &D,
where E: TElement,
D: DomTraversal<E>,
{
if opts::get().style_sharing_stats {
STYLE_SHARING_CACHE_HITS.store(0, Ordering::SeqCst);
STYLE_SHARING_CACHE_MISSES.store(0, Ordering::SeqCst);
}
// Handle Gecko's eager initial styling. We don't currently support it
// in conjunction with bottom-up traversal. If we did, we'd need to put
// it on the context to make it available to the bottom-up phase.
@ -78,13 +73,16 @@ pub fn traverse_dom<E, D>(traversal: &D,
});
});
if opts::get().style_sharing_stats {
let hits = STYLE_SHARING_CACHE_HITS.load(Ordering::SeqCst);
let misses = STYLE_SHARING_CACHE_MISSES.load(Ordering::SeqCst);
println!("Style sharing stats:");
println!(" * Hits: {}", hits);
println!(" * Misses: {}", misses);
// Dump statistics to stdout if requested.
if TraversalStatistics::should_dump() || opts::get().style_sharing_stats {
let slots = unsafe { tls.unsafe_get() };
let aggregate = slots.iter().fold(TraversalStatistics::default(), |acc, t| {
match *t.borrow() {
None => acc,
Some(ref cx) => &cx.borrow().statistics + &acc,
}
});
println!("{}", aggregate);
}
}