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Bug 946781 - part 5 - measure the proto and iface cache from within xpconnect; r=bholley,njn

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This commit is contained in:
Nathan Froyd 2013-12-06 13:08:45 -05:00
parent 836f887bc6
commit d647846100
3 changed files with 15 additions and 1 deletions
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4
js/xpconnect/src/XPCJSRuntime.cpp
View File

@ -2728,6 +2728,10 @@ JSReporter::CollectReports(WindowPaths *windowPaths,
KIND_HEAP, sizeInfo.mScopeAndMapSize,
"Memory used by XPConnect scopes.");
REPORT_BYTES(NS_LITERAL_CSTRING("explicit/xpconnect/proto-iface-cache"),
KIND_HEAP, sizeInfo.mProtoAndIfaceCacheSize,
"Memory used for prototype and interface binding caches.");
REPORT_BYTES(NS_LITERAL_CSTRING("explicit/xpconnect/js-component-loader"),
KIND_HEAP, jsComponentLoaderSize,
"Memory used by XPConnect's JS component loader.");

6
js/xpconnect/src/XPCWrappedNativeScope.cpp
View File

@ -679,6 +679,12 @@ XPCWrappedNativeScope::AddSizeOfIncludingThis(ScopeSizeInfo* scopeSizeInfo)
scopeSizeInfo->mScopeAndMapSize +=
mWrappedNativeProtoMap->SizeOfIncludingThis(scopeSizeInfo->mMallocSizeOf);
if (dom::HasProtoAndIfaceArray(mGlobalJSObject)) {
dom::ProtoAndIfaceArray* cache = dom::GetProtoAndIfaceArray(mGlobalJSObject);
scopeSizeInfo->mProtoAndIfaceCacheSize +=
cache->SizeOfIncludingThis(scopeSizeInfo->mMallocSizeOf);
}
// There are other XPCWrappedNativeScope members that could be measured;
// the above ones have been seen by DMD to be worth measuring. More stuff
// may be added later.

6
js/xpconnect/src/xpcprivate.h
View File

@ -1139,10 +1139,14 @@ public:
struct ScopeSizeInfo {
ScopeSizeInfo(mozilla::MallocSizeOf mallocSizeOf)
: mMallocSizeOf(mallocSizeOf), mScopeAndMapSize(0) {}
: mMallocSizeOf(mallocSizeOf),
mScopeAndMapSize(0),
mProtoAndIfaceCacheSize(0)
{}
mozilla::MallocSizeOf mMallocSizeOf;
size_t mScopeAndMapSize;
size_t mProtoAndIfaceCacheSize;
};
static void