CycleCollector/CCStatus-2007-03-16

Agenda

• Update from most recent discovery and patch to reduce leaks by peterv.
• Update from graydon on landing 368869.
• Update from jst on CC timing code.
• Update from dbaron on debugging tools.

• Discuss next steps.

Leak Numbers

peterv: Patch ([ https://bugzilla.mozilla.org/show_bug.cgi?id=374096 Bug 374096 ] ) was landed today. Leaks dropped from 700k to 6k. Catches most of it, but there's some tuning to due.

jst: Has a patch for CC timing. Will create a bug and attach patch for review. No update on the XPConnect stuff yet.

dbaron: Nothing of interest. Going to do some lower level leak tests. Seeing the usual mess of font config junk.

Status of Pending CC Code in Bugzilla

• Add cycle collection to RDF datasources
• Make XPConnect traverse more JS edges
• Support cycle collection of refcounted non-xpcom objects (aka, the XBL patch)
• Make cycle collection suspect all native wrapper roots
• cycle collector shutdown dump based on known should-have-been-freed objects

Next Steps

• Performance: Boris has filed two bugs (bug 373693 (addref) and bug 373694 (release) ) because of address/release. Need to look at these items. David has been doing some analysis of collection of why he's seeing slow down.
• Collectively look for performance enhancements.
• The tinderbox doesn't show major leaks, but maybe we should go through all the leaks tests.
• Peterv will look at both of the bugs above for next week.
• jst will land the CC timing code (bug 374239).

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