JavaScript/Projects/MemShrink

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Objective

• Reduce Gecko's memory usage, especially on Firefox OS devices.

Meetings

• No scheduled meetings
  • Vidyo room:
  • IRC: #jsapi
  • Meeting notes:

People

Engineering Management	Naveed Ihsanullah
Engineering	Terrence Cole (GC) Steve Fink (GC) Jon Coppeard (GC) Nicholas Nethercote (MemShrink)
Program Management	Chris Peterson

Bugs

Full Query

ID	Summary	Whiteboard	Keywords	Priority	Status	Assigned to
722749	add source information about where a JS object was allocated in DumpHeapComplete	[MemShrink:P2][firebug-p1]		--	NEW
881914	GC seems to trigger too late when juggling huge structured clones	[MemShrink:P2]		P3	REOPENED
894971	Entrain fewer unnecessary variables in closures	[MemShrink:P2]		--	NEW
896753	Memory reporter for structured clone buffers	[MemShrink:P2]		P3	NEW
916748	Report scope chain leaks.	[MemShrink:P2]		--	NEW
987955	Figure out how much we could save by sharing bytecode/sources per-process	[e10s-multi:+][MemShrink:P1]		--	NEW
1084626	Remove support for Chrome -> Content leaks through debugger objects	[MemShrink:P2]		--	NEW
1113636	Consider Increasing JavaScript source compression to reduce memory usage	[MemShrink:P2]		--	NEW
1117180	Messing with weakmap can result on negative value for heap-unclassified	[MemShrink:P3]		--	NEW
1157839	Investigate using refcounted strings for wrapping	[MemShrink:P2]		P3	NEW
1162497	Relazify scripts with inner functions	[MemShrink:P2]		--	NEW
1178651	Consider sharing the self-hosting compartment from chrome to content processes	[MemShrink:P2]		P5	NEW
1315757	Share atoms across processes	[MemShrink:P2][e10s-multi:+]		P3	NEW
1482037	Excessive memory use, memory leak	[MemShrink:P2]		P3	UNCONFIRMED
985539	Modify JS heap dumping to include information about empty cells in each arena	[MemShrink:P2]		--	NEW
988356	Investigate making the empty chunk pool per-process	[MemShrink:P2]		--	NEW
1008337	[meta] GC memory efficiency tracking bug	[MemShrink:meta]	meta	P2	NEW
1172193	Heuristics for zone GCs are bad	[MemShrink:P2]		--	NEW
1367471	De-duplicate strings or other constant & common data during compaction	[MemShrink:P2]	triage-deferred	P3	NEW
1407691	Run away memory use sending ArrayBuffers to workers	[MemShrink:P3]		P2	NEW
1421966	Investigate triggering compaction if the proportion of unused GC things gets too high	[MemShrink:P2]		P3	NEW
1448548	Major deferred cleanup of (garbage?) strings related to tab focus	[MemShrink:P2]	memory-leak	P3	NEW
1472062	[meta] OOM crash evicting the nursery: "Failed to allocate new chunk during GC"	[MemShrink:P2][tbird crash][qa-not-actionable]	crash, meta, top50, topcrash	P3	NEW
1484903	Investigate doing a last ditch full GC if we hit OOM when evicting the nursery	[MemShrink:P2]		P5	NEW
1495355	Add explicit GC tuning modes (low memory, tab in background, etc)	[MemShrink:P2]		P2	NEW
1504623	Callbacks cause excessive webextension process memory growth	[MemShrink:P2]	memory-footprint	P3	NEW
1520471	The GC isn't told about LifoAlloc allocations	[MemShrink:P2]		P3	NEW
1525623	Firefox crashes during long-run automated test of a web application	[MemShrink:P3]	memory-leak, parity-chrome	P5	UNCONFIRMED
1533449	[meta] Firefox memory use grows unreasonably high in some cases	[MemShrink:meta]	meta	P3	NEW
1537652	Investigate more selective compacting GC.	[MemShrink:P2]	perf:resource-use	P3	NEW
1540986	Dead zones are not automatically collected	[MemShrink:P2]		P3	NEW
1566721	Allocate GC chunks from jemalloc	[MemShrink:P2]	memory-footprint	P5	NEW

32 Total; 32 Open (100%); 0 Resolved (0%); 0 Verified (0%);