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Bug 1779138 - Don't query resident unique memory on MacOS r=mccr8

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This patch disables calculating resident unique memory for telemetry, but
retains it for about:memory.  Telemetry has other memory measurements including a different fast-path.

Differential Revision: https://phabricator.services.mozilla.com/D155455
This commit is contained in:
Paul Bone 2022-08-27 00:56:33 +00:00
parent c3bf7b11e3
commit 2f5df3fc3c
1 changed files with 4 additions and 0 deletions
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4
xpcom/base/MemoryTelemetry.cpp
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@ -276,7 +276,11 @@ nsresult MemoryTelemetry::GatherReports(
#endif
RECORD(MEMORY_RESIDENT_FAST, ResidentFast, UNITS_BYTES);
RECORD(MEMORY_RESIDENT_PEAK, ResidentPeak, UNITS_BYTES);
// Although we can measure unique memory on MacOS we choose not to, because
// doing so is too slow for telemetry.
#ifndef XP_MACOSX
RECORD(MEMORY_UNIQUE, ResidentUnique, UNITS_BYTES);
#endif
RECORD(MEMORY_HEAP_ALLOCATED, HeapAllocated, UNITS_BYTES);
RECORD(MEMORY_HEAP_OVERHEAD_FRACTION, HeapOverheadFraction,
UNITS_PERCENTAGE);