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Dump traversal time with other style statistics.

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This commit is contained in:
Bobby Holley 2017-02-14 16:13:21 -08:00
parent 5a624ff956
commit d7d6979144
3 changed files with 28 additions and 5 deletions
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9
components/style/parallel.rs
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@ -27,6 +27,7 @@ use dom::{OpaqueNode, SendNode, TElement, TNode};
use rayon;
use scoped_tls::ScopedTLS;
use std::borrow::Borrow;
use time;
use traversal::{DomTraversal, PerLevelTraversalData, PreTraverseToken};
/// The chunk size used to split the parallel traversal nodes.
@ -44,6 +45,9 @@ pub fn traverse_dom<E, D>(traversal: &D,
where E: TElement,
D: DomTraversal<E>,
{
let dump_stats = TraversalStatistics::should_dump();
let start_time = if dump_stats { Some(time::precise_time_s()) } else { None };
debug_assert!(traversal.is_parallel());
// 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
@ -74,14 +78,15 @@ pub fn traverse_dom<E, D>(traversal: &D,
});
// Dump statistics to stdout if requested.
if TraversalStatistics::should_dump() {
if dump_stats {
let slots = unsafe { tls.unsafe_get() };
let aggregate = slots.iter().fold(TraversalStatistics::default(), |acc, t| {
let mut aggregate = slots.iter().fold(TraversalStatistics::default(), |acc, t| {
match *t.borrow() {
None => acc,
Some(ref cx) => &cx.borrow().statistics + &acc,
}
});
aggregate.compute_traversal_time(start_time.unwrap());
println!("{}", aggregate);
}
}