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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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3
components/script_traits/lib.rs
View file

@ -16,6 +16,7 @@ extern crate ipc_channel;
extern crate libc;
extern crate msg;
extern crate net_traits;
extern crate profile_traits;
extern crate serde;
extern crate util;
extern crate url;
@ -32,6 +33,7 @@ use msg::webdriver_msg::WebDriverScriptCommand;
use net_traits::ResourceTask;
use net_traits::image_cache_task::ImageCacheTask;
use net_traits::storage_task::StorageTask;
use profile_traits::mem;
use std::any::Any;
use std::sync::mpsc::{Sender, Receiver};
use url::Url;
@ -190,6 +192,7 @@ pub trait ScriptTaskFactory {
resource_task: ResourceTask,
storage_task: StorageTask,
image_cache_task: ImageCacheTask,
mem_profiler_chan: mem::ProfilerChan,
devtools_chan: Option<DevtoolsControlChan>,
window_size: Option<WindowSizeData>,
load_data: LoadData);