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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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4
components/servo/lib.rs
View file

@ -111,8 +111,8 @@ impl Browser {
let constellation_chan = create_constellation(opts.clone(),
compositor_proxy.clone_compositor_proxy(),
time_profiler_chan.clone(),
devtools_chan,
mem_profiler_chan.clone(),
devtools_chan,
supports_clipboard);
if let Some(port) = opts.webdriver_port {
@ -157,8 +157,8 @@ impl Browser {
fn create_constellation(opts: opts::Opts,
compositor_proxy: Box<CompositorProxy+Send>,
time_profiler_chan: time::ProfilerChan,
devtools_chan: Option<Sender<devtools_traits::DevtoolsControlMsg>>,
mem_profiler_chan: mem::ProfilerChan,
devtools_chan: Option<Sender<devtools_traits::DevtoolsControlMsg>>,
supports_clipboard: bool) -> ConstellationChan {
let resource_task = new_resource_task(opts.user_agent.clone(), devtools_chan.clone());