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layout: Perform aux initialization in parallel.

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Brings aux initialization time down to essentially zero (!)
This commit is contained in:
Patrick Walton 2014-01-29 11:12:47 -08:00
parent 6c2e48f04d
commit 94ab4f5086
3 changed files with 19 additions and 4 deletions
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12
src/components/main/layout/layout_task.rs
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@ -324,6 +324,7 @@ impl LayoutTask {
constellation_chan: self.constellation_chan.clone(),
dom_leaf_set: self.dom_leaf_set.clone(),
flow_leaf_set: self.flow_leaf_set.clone(),
layout_chan: self.chan.clone(),
font_context_info: font_context_info,
stylist: &*self.stylist,
reflow_root: OpaqueNode::from_layout_node(reflow_root),
@ -549,10 +550,13 @@ impl LayoutTask {
|| {
// Initialize layout data for each node.
//
// FIXME: This is inefficient. We don't need an entire traversal to do this!
profile(time::LayoutAuxInitCategory, self.profiler_chan.clone(), || {
node.initialize_style_for_subtree(self.chan.clone());
});
// FIXME(pcwalton): This is inefficient. We don't need an entire traversal to do this
// in sequential mode!
if self.parallel_traversal.is_none() {
profile(time::LayoutAuxInitCategory, self.profiler_chan.clone(), || {
node.initialize_style_for_subtree(self.chan.clone());
});
}
// Perform CSS selector matching if necessary.
match data.damage.level {