thunderbird/rhbz-1821418.patch

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2021-01-21 14:38:17 +00:00
diff -up firefox-78.0/xpcom/base/AvailableMemoryTracker.cpp.rhbz-1821418 firefox-78.0/xpcom/base/AvailableMemoryTracker.cpp
--- firefox-78.0/xpcom/base/AvailableMemoryTracker.cpp.rhbz-1821418 2020-06-17 04:20:44.000000000 +0200
+++ firefox-78.0/xpcom/base/AvailableMemoryTracker.cpp 2020-06-25 14:50:46.369798294 +0200
@@ -157,8 +157,12 @@ bool nsAvailableMemoryWatcher::IsVirtual
/* static */
bool nsAvailableMemoryWatcher::IsCommitSpaceLow(const MEMORYSTATUSEX& aStat) {
- if ((kLowCommitSpaceThreshold != 0) &&
- (aStat.ullAvailPageFile < kLowCommitSpaceThreshold)) {
+ const char* threshold = getenv("MOZ_GC_THRESHOLD");
+ if (threshold) {
+ kLowCommitSpaceThreshold = atoi(threshold);
+ }
+
+ if ((kLowCommitSpaceThreshold == 0) || (aStat.ullAvailPageFile < kLowCommitSpaceThreshold)) {
sNumLowCommitSpaceEvents++;
CrashReporter::AnnotateCrashReport(
CrashReporter::Annotation::LowCommitSpaceEvents,
@@ -210,12 +214,15 @@ void nsAvailableMemoryWatcher::AdjustPol
// polling interval accordingly.
NS_IMETHODIMP
nsAvailableMemoryWatcher::Notify(nsITimer* aTimer) {
+ const char* threshold = getenv("MOZ_GC_THRESHOLD");
+ bool forceLowMem = (threshold && atoi(threshold) == 0);
+
MEMORYSTATUSEX stat;
stat.dwLength = sizeof(stat);
bool success = GlobalMemoryStatusEx(&stat);
- if (success) {
- bool lowMemory = IsVirtualMemoryLow(stat) || IsCommitSpaceLow(stat);
+ if (success || forceLowMemory) {
+ bool lowMemory = IsVirtualMemoryLow(stat) || IsCommitSpaceLow(stat || forceLowMem);
if (lowMemory) {
SendMemoryPressureEvent();