gecko/memory
Mike Hommey 3ef8be4fa4 Bug 1203840 - Trigger dirty pages purge after CC. r=njn,r=smaug,r=mccr8
Jemalloc 4 purges dirty pages regularly during free() when the ratio of dirty
pages compared to active pages is higher than 1 << lg_dirty_mult.  We set
lg_dirty_mult in jemalloc_config to limit RSS usage, but it also has an impact
on performance.

So instead of enforcing a high ratio to force more pages being purged, we keep
jemalloc's default ratio of 8, and force a regular purge of all dirty pages,
after cycle collection.

Keeping jemalloc's default ratio avoids cycle-collection-triggered purge to
have to go through really all dirty pages when there are a lot, in which case
the normal jemalloc purge during free() will already have kicked in. It also
takes care of everything that doesn't run the cycle collector still having
a level of purge, like plugins in the plugin-container.

At the same time, since jemalloc_purge_freed_pages does nothing with jemalloc 4,
repurpose the MEMORY_FREE_PURGED_PAGES_MS telemetry probe to track the time
spent in this cycle-collector-triggered purge.
2015-09-20 17:43:43 +09:00
..
build Bug 1203840 - Trigger dirty pages purge after CC. r=njn,r=smaug,r=mccr8 2015-09-20 17:43:43 +09:00
fallible Bug 1182996 - Fix and add missing namespace comments. rs=ehsan 2015-07-13 08:25:42 -07:00
jemalloc Backed out changeset a67867200ec3 (bug 1142403) for Linuxx64 M-e10s(2) bustage. 2015-09-08 13:14:05 +05:30
mozalloc Bug 1203476 - Fix an Android-only warning in mozalloc_abort.cpp. r=glandium. 2015-09-10 16:20:19 -07:00
mozjemalloc Bug 1201792 - s/MOZ_JEMALLOC3/MOZ_JEMALLOC4/. r=njn 2015-09-04 15:15:47 +09:00
replace Bug 1202902 - Mass replace toplevel 'let' with 'var' in preparation for global lexical scope. (rs=jorendorff) 2015-09-15 11:19:45 -07:00
volatile Bug 1198334 (part 1) - Replace the opt-in FAIL_ON_WARNINGS with the opt-out ALLOW_COMPILER_WARNINGS. r=glandium. 2015-08-27 20:44:53 -07:00
moz.build Bug 1201792 - s/MOZ_JEMALLOC3/MOZ_JEMALLOC4/. r=njn 2015-09-04 15:15:47 +09:00