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Wire up the JS engine's memory reporting.

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SpiderMonkey provides an extremely fine-grained breakdown of memory
usage, but for Servo we aggregate the measurements into a small number
of coarse buckets, which seems appropriate for the current level of
detail provided by Servo's memory profiler. Sample output:
```
|   10.99 MiB -- pages
|       7.75 MiB -- url(http://html5demos.com/worker)
|          4.63 MiB -- js
|             2.00 MiB -- gc-heap
|                0.94 MiB -- decommitted
|                0.92 MiB -- used
|                0.09 MiB -- unused
|                0.05 MiB -- admin
|             1.44 MiB -- malloc-heap
|             1.19 MiB -- non-heap
|          [...]
|       3.24 MiB -- url(http://html5demos.com/js/worker-cruncher.js)
|          3.24 MiB -- js
|             1.17 MiB -- malloc-heap
|             1.06 MiB -- non-heap
|             1.00 MiB -- gc-heap
|                0.69 MiB -- used
|                0.19 MiB -- decommitted
|                0.09 MiB -- unused
|                0.03 MiB -- admin
```
Most of the changes are plumbing to get the script and worker tasks
communicating with the memory profiler task.
This commit is contained in:
Nicholas Nethercote 2015-07-02 22:14:38 -07:00
parent ef9715203e
commit 7429b90e02
15 changed files with 177 additions and 21 deletions
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2
components/script/dom/bindings/trace.rs
View file

@ -60,6 +60,7 @@ use smallvec::SmallVec1;
use msg::compositor_msg::ScriptListener;
use msg::constellation_msg::ConstellationChan;
use net_traits::image::base::Image;
use profile_traits::mem::ProfilerChan;
use util::str::{LengthOrPercentageOrAuto};
use std::cell::{Cell, UnsafeCell, RefCell};
use std::collections::{HashMap, HashSet};
@ -299,6 +300,7 @@ no_jsmanaged_fields!(CanvasGradientStop, LinearGradientStyle, RadialGradientStyl
no_jsmanaged_fields!(LineCapStyle, LineJoinStyle, CompositionOrBlending);
no_jsmanaged_fields!(RepetitionStyle);
no_jsmanaged_fields!(WebGLError);
no_jsmanaged_fields!(ProfilerChan);
impl JSTraceable for Box<ScriptChan+Send> {
#[inline]