630755 - Add support to about:memory for getting data from the child process

Status: RESOLVED DUPLICATE of bug 633305

(Firefox for Android Graveyard :: General, defect)

Description

[Mark Finkle (:mfinkle) (use needinfo?)]

We should add a section to the about:memory that lists the data from the child process

Comment 1

[Josh Matthews [:jdm]]

This is going to be interesting.  about:memory uses nsIMemoryReporter, which just has a couple accessors that return values on demand.  Since the numbers come from the content process, we can't just synchronously ask for them.  Therefore, we either:

* update the parent reporters at regular intervals, when we won't actually care about them 99% of the time
* introduce a "priming" phase into the memory reporter manager, such that nsMemoryReporterManager::EnumerateReporters actually traverses the array and pokes each reporter in case it needs to get ready.  Then we race to see if we can get a value from content just in time to show it!

Any other ideas are welcome, too.

Comment 2

[Josh Matthews [:jdm]]

The other bug has a patch, so duping forward.