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126 commits

Author SHA1 Message Date
Patrick Walton
9479a7dcac layout: Run assign-widths in parallel. 
5% layout speedup on mobile Wikipedia.
 2014-02-24 18:06:24 -08:00
bors-servo
998710d907 auto merge of #1738 : saneyuki/servo/opt, r=kmcallister 
I think gfx/opts.rs should be placed to more general place.
 2014-02-24 17:43:41 -05:00
Tetsuharu OHZEKI
63cab5c72c Move from gfx::opts to servo_util::opts. 2014-02-25 07:07:54 +09:00
Josh Matthews
625325434b Implement JSManaged for DOM objects. 2014-02-24 15:16:42 -05:00
Patrick Walton
509cc3cb3a Shut down the profiler in headless compositing mode 2014-02-20 22:16:40 -08:00
Youngmin Yoo
13f9a66632 Impl Basic support for object element 2014-02-20 17:31:16 +09:00
Patrick Walton
d3e56fa9cc layout: Aggressively try to share styles with the last few nodes seen. 
This roughly implements the same cache found in Blink. 50% improvement
on the rainbow page, but at the cost of reducing parallel gains down to
nothing. I added a new page, `perf-rainbow-hard.html`, which disables
the optimizations in both Blink and Servo.
 2014-02-14 17:37:51 -08:00
Patrick Walton
0fa0940ce9 layout: Cache applicable-declarations-to-computed-values mappings. 
If the cache is hit, then we can only compute inherited properties. This
is a WebKit optimization.
 2014-02-14 17:37:50 -08:00
Patrick Walton
1678cc9a88 layout: Implement basic style sharing. 
No improvement on the rainbow page, but necessary for some other
optimizations we want to do.
 2014-02-14 17:37:50 -08:00
Patrick Walton
cf8203848a layout: Stop storing intermediate applicable declarations inside layout 
data.

9% improvement in style recalc on the rainbow page.
 2014-02-14 17:37:12 -08:00
Keegan McAllister
36b8f63984 Restore failure handling 
We probably leak some threads and resources, e.g. when the script task crashes
and doesn't get a chance to send layout data back to layout to be deallocated.

Not tested with iframes yet.
 2014-02-12 18:07:32 -08:00
HyunJune Kim
c8d503898a This is implement Hover Event. If over element, currently full reflow. after PR, will make partial reflow. 2014-02-10 11:16:07 +09:00
Keegan McAllister
78d2118f47 Eliminate the extra indirection of DList<~Flow> 2014-02-05 14:42:32 -08:00
patrick kim
a90c2e3a26 implement position:relative 2014-02-05 09:39:44 +09:00
Patrick Walton
17eea6bb45 layout: Enforce that flow construction is thread-safe. 
Closes #1584.
 2014-01-31 17:54:13 -08:00
bors-servo
e2e848c6ad auto merge of #1600 : pcwalton/servo/use-concurrent-hash-map, r=larsbergstrom 
64% improvement in style recalc.

r? @larsbergstrom
 2014-01-30 16:28:18 -08:00
bors-servo
31442fe856 auto merge of #1598 : pcwalton/servo/sequential-mirrors-parallel, r=larsbergstrom 
in the parallel path.

r? @larsbergstrom
 2014-01-30 16:01:24 -08:00
Patrick Walton
939f1a28a3 layout: Consolidate passes in the sequential path that were consolidated 
in the parallel path.
 2014-01-30 15:25:25 -08:00
bors-servo
9352e1db00 auto merge of #1579 : ibnc/servo/multiple_display_lists, r=larsbergstrom 
Fixes: #1538

Still needs to be rebased.
 2014-01-30 15:22:33 -08:00
Patrick Walton
a8e35fbeac layout: Use the concurrent hash map for the leaf sets. 
64% improvement in style recalc.
 2014-01-30 15:11:35 -08:00
Isabelle Carter
0892fada74 Multiple display list support 2014-01-30 17:11:17 -06:00
Patrick Walton
94ab4f5086 layout: Perform aux initialization in parallel. 
Brings aux initialization time down to essentially zero (!)
 2014-01-30 13:13:56 -08:00
Patrick Walton
b27f4a8969 layout: Introduce a DOM leaf set as a prerequisite for parallel flow 
construction.

This will be very slow until we have the concurrent hash table, but we
might as well get it in.
 2014-01-29 21:05:50 -08:00
bors-servo
9f6ab8ed77 auto merge of #1589 : pcwalton/servo/stop-removing-flows, r=larsbergstrom 
to be leaves.

60% improvement in flow tree construction time on the rainbow page.

r? @larsbergstrom
 2014-01-29 15:09:52 -08:00
Patrick Walton
e579daefc2 layout: Stop adding flows to the leaf set that are obviously never going 
to be leaves.

60% improvement in flow tree construction time on the rainbow page.
 2014-01-29 15:01:26 -08:00
Patrick Walton
21656b874d layout: Profile layout damage propagation and group "style recalc" (as 
WebKit calls it) into one supercategory in the profiler
 2014-01-29 11:41:22 -08:00
Patrick Walton
9c3af574e5 layout: Perform cascading in parallel. 
Speeds up the cascade by 3x.
 2014-01-27 14:41:52 -08:00
Patrick Walton
cb2e225b14 layout: Switch parallel selector matching over to using work stealing. 
10% speedup over what we had before.
 2014-01-27 12:44:54 -08:00
Patrick Walton
55ccfae1e8 layout: Profile the CSS cascade as well as selector matching. 
It's slow.
 2014-01-25 18:13:59 -08:00
Patrick Walton
18a2050a64 layout: Port parallel layout over to a generic "work queue" 
infrastructure.

The work queue accepts abstract generic "work units", which in this case
are layout operations. The same speedups have been observed.
 2014-01-24 20:50:30 -08:00
Patrick Walton
5cc744d25d layout: Destroy flows properly under display: none. 
Fixes a crash on http://en.wikipedia.org/wiki/South_China_Sea

It plants a destructor bomb on flows so that this can't happen again.
 2014-01-24 10:37:46 -08:00
patrick kim
b0380ae96a fix text-decoration property in layout 2014-01-23 09:51:08 +09:00
Patrick Walton
54f0f17f83 layout: Implement parallel reflow for the bubble-widths and 
assign-heights phases.

This uses the new work-stealing deque. By default, 3/4 of a thread per
logical CPU is used. This can be tuned with the `-y` flag.

I measured a 65% reflow speedup on `perf-rainbow.html` and a 247% reflow
speedup on `http://en.wikipedia.org/wiki/South_China_Sea` on a 4-core
HyperThreaded Core i7. However, numbers were fairly volatile, especially
for the latter.
 2014-01-22 15:59:21 -08:00
Patrick Walton
7d447dbc06 script: Stop trusting pointers to DOM nodes that layout provides. 
Pointers to DOM nodes from layout could go stale if incremental reflow
does not correctly destroy dead nodes. Therefore, we ask the JavaScript
garbage collector to verify that each DOM node is indeed a valid pointer
before calling event handlers on it, and fail otherwise.
 2014-01-14 21:51:24 -08:00
zmike
193b6d2635 add names for all servo spawned tasks 
* add servo_util::task::{spawn_named,spawn_with_named} functions

* add name param for spawn_listener and spawn_conversation functions

this should resolve #1169
 2014-01-13 13:12:48 -05:00
Jack Moffitt
a7ef1cd35e Upgrade to latest Rust. 2014-01-12 19:45:45 -07:00
Simon Sapin
a16087da5f Selector mathing: Move the pseudo-elements buckets inside Stylist. 
Refactor to have only one Stylist per document.
 2014-01-08 14:54:16 +00:00
Jaeman Park
62691cb6ef Change range to iter() and add comment for FirstLine and FirstLetter 2014-01-08 09:09:52 +09:00
Jaeman Park
138e425607 CSS parsing/selector-matching for pseudo elements 2014-01-07 18:03:07 +09:00
Patrick Walton
9e2b63ddd3 layout: Move the LayoutNode wrapper from script into layout. 2013-12-17 18:07:41 -08:00
Patrick Walton
be69a503fe script: Eliminate the phantom type in favor of just whitelisting methods 
that layout can safely call.

This is simpler. Currently, the set of methods is not safe, but I plan
to lock it down more soon.
 2013-12-17 18:07:12 -08:00
Patrick Walton
199ca33b72 script: Make trees less generic 2013-12-17 13:46:14 -08:00
Patrick Walton
89af9017ef layout: Replace AbstractNodes in layout with OpaqueNode, preventing 
DOM access during reflow.
 2013-12-16 15:17:15 -08:00
Daniel Hedlund
e7a591a7e1 Ensure render and layout tasks get destructed before main thread finishes 
Fixes #1097.
 2013-12-15 14:25:41 -08:00
Patrick Walton
971f77d2c6 layout: Stop going to the DOM for iframe sizes 2013-12-13 15:10:04 -08:00
Patrick Walton
21e8c72a75 constellation: Stop using futures for frame sizes. 
This will allow us to stop going to the DOM in order to handle iframe
sizing. Instead we can just store the pipeline and frame IDs of iframes
inside the flow tree itself.
 2013-12-13 10:43:27 -08:00
Patrick Walton
a2e91d242b layout: Perform text decoration propagation per CSS 2.1 § 16.3.1 without 
going to the DOM.
 2013-12-12 17:54:51 -08:00
bors-servo
144737ce1b auto merge of #1394 : kmcallister/servo/style-damage, r=pcwalton 
This fixes the computation of restyle damage on `color-change-text.html`, which can be seen with `RUST_LOG=servo::layout::layout_task`.

However we can't prune the layout traversals yet, because we don't reuse `Flow` objects between reflows, so we have no old values to fall back to.

I think this used to work because `FlowContexts` (as they were called then) were stored in a DOM node's `LayoutData` and reused.  But it's possible that it never really worked, and my testing when I landed the restyle damage code was insufficient (I didn't understand the layout code nearly as well back then).

r? @pcwalton
 2013-12-12 15:17:27 -08:00
Keegan McAllister
53747638a1 Disable remaining reflow traversal pruning for now 
We don't reuse Flow objects between reflows, so we have no old values to fall
back to.

I think this used to work because FlowContexts (as they were called then) were
stored in a DOM node's LayoutData and reused.  But it's possible that it never
really worked, and my testing when I landed the restyle damage code was
insufficient (I didn't understand the layout code nearly as well back then).
 2013-12-12 14:44:34 -08:00
Patrick Walton
4c8383c38b layout: Reference count ComputedValues structures like Gecko does. 
This has no difference in CSS selector matching performance and results
in a 31% speedup in constraint solving on the rainbow page.
 2013-12-12 14:44:24 -08:00