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Bug 904720: Take a census of event targets and listeners. r=smaug,njn

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This commit is contained in:
Kyle Huey 2013-09-16 09:06:03 +08:00
parent 16bda08a40
commit 3916914a98
5 changed files with 190 additions and 126 deletions
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52
content/base/src/nsDocument.cpp
View File

@ -11046,26 +11046,30 @@ nsDocument::GetVisibilityState(nsAString& aState)
/* virtual */ void
nsIDocument::DocSizeOfExcludingThis(nsWindowSizes* aWindowSizes) const
{
aWindowSizes->mDOMOther +=
aWindowSizes->mDOMOtherSize +=
nsINode::SizeOfExcludingThis(aWindowSizes->mMallocSizeOf);
if (mPresShell) {
mPresShell->SizeOfIncludingThis(aWindowSizes->mMallocSizeOf,
&aWindowSizes->mArenaStats,
&aWindowSizes->mLayoutPresShell,
&aWindowSizes->mLayoutStyleSets,
&aWindowSizes->mLayoutTextRuns,
&aWindowSizes->mLayoutPresContext);
&aWindowSizes->mLayoutPresShellSize,
&aWindowSizes->mLayoutStyleSetsSize,
&aWindowSizes->mLayoutTextRunsSize,
&aWindowSizes->mLayoutPresContextSize);
}
aWindowSizes->mPropertyTables +=
aWindowSizes->mPropertyTablesSize +=
mPropertyTable.SizeOfExcludingThis(aWindowSizes->mMallocSizeOf);
for (uint32_t i = 0, count = mExtraPropertyTables.Length();
i < count; ++i) {
aWindowSizes->mPropertyTables +=
aWindowSizes->mPropertyTablesSize +=
mExtraPropertyTables[i]->SizeOfExcludingThis(aWindowSizes->mMallocSizeOf);
}
if (nsEventListenerManager* elm = GetExistingListenerManager()) {
aWindowSizes->mDOMEventListenersCount += elm->ListenerCount();
}
// Measurement of the following members may be added later if DMD finds it
// is worthwhile:
// - many!
@ -11074,7 +11078,7 @@ nsIDocument::DocSizeOfExcludingThis(nsWindowSizes* aWindowSizes) const
void
nsIDocument::DocSizeOfIncludingThis(nsWindowSizes* aWindowSizes) const
{
aWindowSizes->mDOMOther += aWindowSizes->mMallocSizeOf(this);
aWindowSizes->mDOMOtherSize += aWindowSizes->mMallocSizeOf(this);
DocSizeOfExcludingThis(aWindowSizes);
}
@ -11110,58 +11114,62 @@ nsDocument::DocSizeOfExcludingThis(nsWindowSizes* aWindowSizes) const
switch (node->NodeType()) {
case nsIDOMNode::ELEMENT_NODE:
p = &aWindowSizes->mDOMElementNodes;
p = &aWindowSizes->mDOMElementNodesSize;
break;
case nsIDOMNode::TEXT_NODE:
p = &aWindowSizes->mDOMTextNodes;
p = &aWindowSizes->mDOMTextNodesSize;
break;
case nsIDOMNode::CDATA_SECTION_NODE:
p = &aWindowSizes->mDOMCDATANodes;
p = &aWindowSizes->mDOMCDATANodesSize;
break;
case nsIDOMNode::COMMENT_NODE:
p = &aWindowSizes->mDOMCommentNodes;
p = &aWindowSizes->mDOMCommentNodesSize;
break;
default:
p = &aWindowSizes->mDOMOther;
p = &aWindowSizes->mDOMOtherSize;
break;
}
*p += nodeSize;
if (nsEventListenerManager* elm = node->GetExistingListenerManager()) {
aWindowSizes->mDOMEventListenersCount += elm->ListenerCount();
}
}
aWindowSizes->mStyleSheets +=
aWindowSizes->mStyleSheetsSize +=
mStyleSheets.SizeOfExcludingThis(SizeOfStyleSheetsElementIncludingThis,
aWindowSizes->mMallocSizeOf);
aWindowSizes->mStyleSheets +=
aWindowSizes->mStyleSheetsSize +=
mCatalogSheets.SizeOfExcludingThis(SizeOfStyleSheetsElementIncludingThis,
aWindowSizes->mMallocSizeOf);
aWindowSizes->mStyleSheets +=
aWindowSizes->mStyleSheetsSize +=
mAdditionalSheets[eAgentSheet].
SizeOfExcludingThis(SizeOfStyleSheetsElementIncludingThis,
aWindowSizes->mMallocSizeOf);
aWindowSizes->mStyleSheets +=
aWindowSizes->mStyleSheetsSize +=
mAdditionalSheets[eUserSheet].
SizeOfExcludingThis(SizeOfStyleSheetsElementIncludingThis,
aWindowSizes->mMallocSizeOf);
aWindowSizes->mStyleSheets +=
aWindowSizes->mStyleSheetsSize +=
mAdditionalSheets[eAuthorSheet].
SizeOfExcludingThis(SizeOfStyleSheetsElementIncludingThis,
aWindowSizes->mMallocSizeOf);
// Lumping in the loader with the style-sheets size is not ideal,
// but most of the things in there are in fact stylesheets, so it
// doesn't seem worthwhile to separate it out.
aWindowSizes->mStyleSheets +=
aWindowSizes->mStyleSheetsSize +=
CSSLoader()->SizeOfIncludingThis(aWindowSizes->mMallocSizeOf);
aWindowSizes->mDOMOther +=
aWindowSizes->mDOMOtherSize +=
mAttrStyleSheet ?
mAttrStyleSheet->DOMSizeOfIncludingThis(aWindowSizes->mMallocSizeOf) :
0;
aWindowSizes->mDOMOther +=
aWindowSizes->mDOMOtherSize +=
mStyledLinks.SizeOfExcludingThis(nullptr, aWindowSizes->mMallocSizeOf);
aWindowSizes->mDOMOther +=
aWindowSizes->mDOMOtherSize +=
mIdentifierMap.SizeOfExcludingThis(nsIdentifierMapEntry::SizeOfExcludingThis,
aWindowSizes->mMallocSizeOf);

5
content/events/src/nsEventListenerManager.h
View File

@ -400,6 +400,11 @@ public:
size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const;
uint32_t ListenerCount() const
{
return mListeners.Length();
}
void MarkForCC();
mozilla::dom::EventTarget* GetTarget() { return mTarget; }

43
dom/base/nsGlobalWindow.cpp
View File

@ -11510,40 +11510,57 @@ nsGlobalWindow::DisableTimeChangeNotifications()
nsSystemTimeChangeObserver::RemoveWindowListener(this);
}
static size_t
SizeOfEventTargetObjectsEntryExcludingThisFun(
static PLDHashOperator
CollectSizeAndListenerCount(
nsPtrHashKey<nsDOMEventTargetHelper> *aEntry,
MallocSizeOf aMallocSizeOf,
void *arg)
{
nsISupports *supports = aEntry->GetKey();
nsCOMPtr<nsISizeOfEventTarget> iface = do_QueryInterface(supports);
return iface ? iface->SizeOfEventTargetIncludingThis(aMallocSizeOf) : 0;
nsWindowSizes* windowSizes = static_cast<nsWindowSizes*>(arg);
nsDOMEventTargetHelper* et = aEntry->GetKey();
if (nsCOMPtr<nsISizeOfEventTarget> iSizeOf = do_QueryObject(et)) {
windowSizes->mDOMEventTargetsSize +=
iSizeOf->SizeOfEventTargetIncludingThis(windowSizes->mMallocSizeOf);
}
if (nsEventListenerManager* elm = et->GetExistingListenerManager()) {
windowSizes->mDOMEventListenersCount += elm->ListenerCount();
}
return PL_DHASH_NEXT;
}
void
nsGlobalWindow::SizeOfIncludingThis(nsWindowSizes* aWindowSizes) const
{
aWindowSizes->mDOMOther += aWindowSizes->mMallocSizeOf(this);
aWindowSizes->mDOMOtherSize += aWindowSizes->mMallocSizeOf(this);
if (IsInnerWindow()) {
if (nsEventListenerManager* elm = GetExistingListenerManager()) {
aWindowSizes->mDOMOther +=
aWindowSizes->mDOMOtherSize +=
elm->SizeOfIncludingThis(aWindowSizes->mMallocSizeOf);
aWindowSizes->mDOMEventListenersCount +=
elm->ListenerCount();
}
if (mDoc) {
mDoc->DocSizeOfIncludingThis(aWindowSizes);
}
}
aWindowSizes->mDOMOther +=
aWindowSizes->mDOMOtherSize +=
mNavigator ?
mNavigator->SizeOfIncludingThis(aWindowSizes->mMallocSizeOf) : 0;
aWindowSizes->mDOMEventTargets +=
mEventTargetObjects.SizeOfExcludingThis(
SizeOfEventTargetObjectsEntryExcludingThisFun,
aWindowSizes->mMallocSizeOf);
// The things pointed to by the entries will be measured below, so we
// use nullptr for the callback here.
aWindowSizes->mDOMEventTargetsSize +=
mEventTargetObjects.SizeOfExcludingThis(nullptr,
aWindowSizes->mMallocSizeOf);
aWindowSizes->mDOMEventTargetsCount +=
const_cast<nsTHashtable<nsPtrHashKey<nsDOMEventTargetHelper> >*>
(&mEventTargetObjects)->EnumerateEntries(CollectSizeAndListenerCount,
aWindowSizes);
}

188
dom/base/nsWindowMemoryReporter.cpp
View File

@ -124,7 +124,7 @@ CollectWindowReports(nsGlobalWindow *aWindow,
nsIMemoryReporterCallback *aCb,
nsISupports *aClosure)
{
nsAutoCString windowPath("explicit/");
nsAutoCString windowPath;
// Avoid calling aWindow->GetTop() if there's no outer window. It will work
// just fine, but will spew a lot of warnings.
@ -176,94 +176,123 @@ CollectWindowReports(nsGlobalWindow *aWindow,
AppendWindowURI(aWindow, windowPath);
windowPath += NS_LITERAL_CSTRING(")");
// Remember the path for later.
aWindowPaths->Put(aWindow->WindowID(), windowPath);
nsCString explicitWindowPath("explicit/");
explicitWindowPath += windowPath;
#define REPORT(_pathTail, _amount, _desc) \
// XXXkhuey
nsCString censusWindowPath("event-counts/");
censusWindowPath += windowPath;
// Remember the path for later.
aWindowPaths->Put(aWindow->WindowID(), explicitWindowPath);
#define REPORT_SIZE(_pathTail, _amount, _desc) \
do { \
if (_amount > 0) { \
nsAutoCString path(windowPath); \
path += _pathTail; \
nsresult rv; \
rv = aCb->Callback(EmptyCString(), path, nsIMemoryReporter::KIND_HEAP,\
nsIMemoryReporter::UNITS_BYTES, _amount, \
NS_LITERAL_CSTRING(_desc), aClosure); \
NS_ENSURE_SUCCESS(rv, rv); \
nsAutoCString path(explicitWindowPath); \
path += _pathTail; \
nsresult rv; \
rv = aCb->Callback(EmptyCString(), path, nsIMemoryReporter::KIND_HEAP, \
nsIMemoryReporter::UNITS_BYTES, _amount, \
NS_LITERAL_CSTRING(_desc), aClosure); \
NS_ENSURE_SUCCESS(rv, rv); \
} \
} while (0)
#define REPORT_COUNT(_pathTail, _amount, _desc) \
do { \
if (_amount > 0) { \
nsAutoCString path(censusWindowPath); \
path += _pathTail; \
nsresult rv; \
rv = aCb->Callback(EmptyCString(), path, nsIMemoryReporter::KIND_OTHER, \
nsIMemoryReporter::UNITS_COUNT, _amount, \
NS_LITERAL_CSTRING(_desc), aClosure); \
NS_ENSURE_SUCCESS(rv, rv); \
} \
} while (0)
nsWindowSizes windowSizes(WindowsMallocSizeOf);
aWindow->SizeOfIncludingThis(&windowSizes);
REPORT("/dom/element-nodes", windowSizes.mDOMElementNodes,
"Memory used by the element nodes in a window's DOM.");
aWindowTotalSizes->mDOMElementNodes += windowSizes.mDOMElementNodes;
REPORT_SIZE("/dom/element-nodes", windowSizes.mDOMElementNodesSize,
"Memory used by the element nodes in a window's DOM.");
aWindowTotalSizes->mDOMElementNodesSize += windowSizes.mDOMElementNodesSize;
REPORT("/dom/text-nodes", windowSizes.mDOMTextNodes,
"Memory used by the text nodes in a window's DOM.");
aWindowTotalSizes->mDOMTextNodes += windowSizes.mDOMTextNodes;
REPORT_SIZE("/dom/text-nodes", windowSizes.mDOMTextNodesSize,
"Memory used by the text nodes in a window's DOM.");
aWindowTotalSizes->mDOMTextNodesSize += windowSizes.mDOMTextNodesSize;
REPORT("/dom/cdata-nodes", windowSizes.mDOMCDATANodes,
"Memory used by the CDATA nodes in a window's DOM.");
aWindowTotalSizes->mDOMCDATANodes += windowSizes.mDOMCDATANodes;
REPORT_SIZE("/dom/cdata-nodes", windowSizes.mDOMCDATANodesSize,
"Memory used by the CDATA nodes in a window's DOM.");
aWindowTotalSizes->mDOMCDATANodesSize += windowSizes.mDOMCDATANodesSize;
REPORT("/dom/comment-nodes", windowSizes.mDOMCommentNodes,
"Memory used by the comment nodes in a window's DOM.");
aWindowTotalSizes->mDOMCommentNodes += windowSizes.mDOMCommentNodes;
REPORT_SIZE("/dom/comment-nodes", windowSizes.mDOMCommentNodesSize,
"Memory used by the comment nodes in a window's DOM.");
aWindowTotalSizes->mDOMCommentNodesSize += windowSizes.mDOMCommentNodesSize;
REPORT("/dom/event-targets", windowSizes.mDOMEventTargets,
"Memory used by the event targets table in a window's DOM, and the "
"objects it points to, which include XHRs.");
aWindowTotalSizes->mDOMEventTargets += windowSizes.mDOMEventTargets;
REPORT_SIZE("/dom/event-targets", windowSizes.mDOMEventTargetsSize,
"Memory used by the event targets table in a window's DOM, and "
"the objects it points to, which include XHRs.");
aWindowTotalSizes->mDOMEventTargetsSize += windowSizes.mDOMEventTargetsSize;
REPORT("/dom/other", windowSizes.mDOMOther,
"Memory used by a window's DOM that isn't measured by the other "
"'dom/' numbers.");
aWindowTotalSizes->mDOMOther += windowSizes.mDOMOther;
REPORT_COUNT("/dom/event-targets", windowSizes.mDOMEventTargetsCount,
"Number of non-node event targets in the event targets table in "
" window's DOM, such as XHRs.");
aWindowTotalSizes->mDOMEventTargetsCount += windowSizes.mDOMEventTargetsCount;
REPORT("/property-tables",
windowSizes.mPropertyTables,
"Memory used for the property tables within a window.");
aWindowTotalSizes->mPropertyTables += windowSizes.mPropertyTables;
REPORT_COUNT("/dom/event-listeners", windowSizes.mDOMEventListenersCount,
"Number of event listeners in a window, including event "
"listeners on nodes and other event targets.");
aWindowTotalSizes->mDOMEventListenersCount += windowSizes.mDOMEventListenersCount;
REPORT("/style-sheets", windowSizes.mStyleSheets,
"Memory used by style sheets within a window.");
aWindowTotalSizes->mStyleSheets += windowSizes.mStyleSheets;
REPORT_SIZE("/dom/other", windowSizes.mDOMOtherSize,
"Memory used by a window's DOM that isn't measured by the other "
"'dom/' numbers.");
aWindowTotalSizes->mDOMOtherSize += windowSizes.mDOMOtherSize;
REPORT("/layout/pres-shell", windowSizes.mLayoutPresShell,
"Memory used by layout's PresShell, along with any structures "
"allocated in its arena and not measured elsewhere, "
"within a window.");
aWindowTotalSizes->mLayoutPresShell += windowSizes.mLayoutPresShell;
REPORT_SIZE("/property-tables", windowSizes.mPropertyTablesSize,
"Memory used for the property tables within a window.");
aWindowTotalSizes->mPropertyTablesSize += windowSizes.mPropertyTablesSize;
REPORT("/layout/line-boxes", windowSizes.mArenaStats.mLineBoxes,
"Memory used by line boxes within a window.");
REPORT_SIZE("/style-sheets", windowSizes.mStyleSheetsSize,
"Memory used by style sheets within a window.");
aWindowTotalSizes->mStyleSheetsSize += windowSizes.mStyleSheetsSize;
REPORT_SIZE("/layout/pres-shell", windowSizes.mLayoutPresShellSize,
"Memory used by layout's PresShell, along with any structures "
"allocated in its arena and not measured elsewhere, "
"within a window.");
aWindowTotalSizes->mLayoutPresShellSize += windowSizes.mLayoutPresShellSize;
REPORT_SIZE("/layout/line-boxes", windowSizes.mArenaStats.mLineBoxes,
"Memory used by line boxes within a window.");
aWindowTotalSizes->mArenaStats.mLineBoxes
+= windowSizes.mArenaStats.mLineBoxes;
REPORT("/layout/rule-nodes", windowSizes.mArenaStats.mRuleNodes,
"Memory used by CSS rule nodes within a window.");
REPORT_SIZE("/layout/rule-nodes", windowSizes.mArenaStats.mRuleNodes,
"Memory used by CSS rule nodes within a window.");
aWindowTotalSizes->mArenaStats.mRuleNodes
+= windowSizes.mArenaStats.mRuleNodes;
REPORT("/layout/style-contexts", windowSizes.mArenaStats.mStyleContexts,
"Memory used by style contexts within a window.");
REPORT_SIZE("/layout/style-contexts", windowSizes.mArenaStats.mStyleContexts,
"Memory used by style contexts within a window.");
aWindowTotalSizes->mArenaStats.mStyleContexts
+= windowSizes.mArenaStats.mStyleContexts;
REPORT("/layout/style-sets", windowSizes.mLayoutStyleSets,
"Memory used by style sets within a window.");
aWindowTotalSizes->mLayoutStyleSets += windowSizes.mLayoutStyleSets;
REPORT_SIZE("/layout/style-sets", windowSizes.mLayoutStyleSetsSize,
"Memory used by style sets within a window.");
aWindowTotalSizes->mLayoutStyleSetsSize += windowSizes.mLayoutStyleSetsSize;
REPORT("/layout/text-runs", windowSizes.mLayoutTextRuns,
"Memory used for text-runs (glyph layout) in the PresShell's frame "
"tree, within a window.");
aWindowTotalSizes->mLayoutTextRuns += windowSizes.mLayoutTextRuns;
REPORT_SIZE("/layout/text-runs", windowSizes.mLayoutTextRunsSize,
"Memory used for text-runs (glyph layout) in the PresShell's "
"frame tree, within a window.");
aWindowTotalSizes->mLayoutTextRunsSize += windowSizes.mLayoutTextRunsSize;
REPORT("/layout/pres-contexts", windowSizes.mLayoutPresContext,
"Memory used for the PresContext in the PresShell's frame "
"within a window.");
aWindowTotalSizes->mLayoutPresContext += windowSizes.mLayoutPresContext;
REPORT_SIZE("/layout/pres-contexts", windowSizes.mLayoutPresContextSize,
"Memory used for the PresContext in the PresShell's frame "
"within a window.");
aWindowTotalSizes->mLayoutPresContextSize += windowSizes.mLayoutPresContextSize;
// There are many different kinds of frames, but it is very likely
// that only a few matter. Implement a cutoff so we don't bloat
@ -279,9 +308,9 @@ CollectWindowReports(nsGlobalWindow *aWindow,
if (frameSize < FRAME_SUNDRIES_THRESHOLD) { \
frameSundriesSize += frameSize; \
} else { \
REPORT("/layout/frames/" # classname, frameSize, \
"Memory used by frames of " \
"type " #classname " within a window."); \
REPORT_SIZE("/layout/frames/" # classname, frameSize, \
"Memory used by frames of " \
"type " #classname " within a window."); \
} \
aWindowTotalSizes->mArenaStats.FRAME_ID_STAT_FIELD(classname) \
+= frameSize; \
@ -290,12 +319,13 @@ CollectWindowReports(nsGlobalWindow *aWindow,
#undef FRAME_ID
if (frameSundriesSize > 0) {
REPORT("/layout/frames/sundries", frameSundriesSize,
"The sum of all memory used by frames which were too small "
"to be shown individually.");
REPORT_SIZE("/layout/frames/sundries", frameSundriesSize,
"The sum of all memory used by frames which were too small "
"to be shown individually.");
}
#undef REPORT
#undef REPORT_SIZE
#undef REPORT_COUNT
return NS_OK;
}
@ -367,32 +397,32 @@ nsWindowMemoryReporter::CollectReports(nsIMemoryReporterCallback* aCb,
NS_ENSURE_SUCCESS(rv, rv); \
} while (0)
REPORT("window-objects/dom/element-nodes", windowTotalSizes.mDOMElementNodes,
REPORT("window-objects/dom/element-nodes", windowTotalSizes.mDOMElementNodesSize,
"This is the sum of all windows' 'dom/element-nodes' numbers.");
REPORT("window-objects/dom/text-nodes", windowTotalSizes.mDOMTextNodes,
REPORT("window-objects/dom/text-nodes", windowTotalSizes.mDOMTextNodesSize,
"This is the sum of all windows' 'dom/text-nodes' numbers.");
REPORT("window-objects/dom/cdata-nodes", windowTotalSizes.mDOMCDATANodes,
REPORT("window-objects/dom/cdata-nodes", windowTotalSizes.mDOMCDATANodesSize,
"This is the sum of all windows' 'dom/cdata-nodes' numbers.");
REPORT("window-objects/dom/comment-nodes", windowTotalSizes.mDOMCommentNodes,
REPORT("window-objects/dom/comment-nodes", windowTotalSizes.mDOMCommentNodesSize,
"This is the sum of all windows' 'dom/comment-nodes' numbers.");
REPORT("window-objects/dom/event-targets", windowTotalSizes.mDOMEventTargets,
REPORT("window-objects/dom/event-targets", windowTotalSizes.mDOMEventTargetsSize,
"This is the sum of all windows' 'dom/event-targets' numbers.");
REPORT("window-objects/dom/other", windowTotalSizes.mDOMOther,
REPORT("window-objects/dom/other", windowTotalSizes.mDOMOtherSize,
"This is the sum of all windows' 'dom/other' numbers.");
REPORT("window-objects/property-tables",
windowTotalSizes.mPropertyTables,
windowTotalSizes.mPropertyTablesSize,
"This is the sum of all windows' 'property-tables' numbers.");
REPORT("window-objects/style-sheets", windowTotalSizes.mStyleSheets,
REPORT("window-objects/style-sheets", windowTotalSizes.mStyleSheetsSize,
"This is the sum of all windows' 'style-sheets' numbers.");
REPORT("window-objects/layout/pres-shell", windowTotalSizes.mLayoutPresShell,
REPORT("window-objects/layout/pres-shell", windowTotalSizes.mLayoutPresShellSize,
"This is the sum of all windows' 'layout/arenas' numbers.");
REPORT("window-objects/layout/line-boxes",
@ -407,13 +437,13 @@ nsWindowMemoryReporter::CollectReports(nsIMemoryReporterCallback* aCb,
windowTotalSizes.mArenaStats.mStyleContexts,
"This is the sum of all windows' 'layout/style-contexts' numbers.");
REPORT("window-objects/layout/style-sets", windowTotalSizes.mLayoutStyleSets,
REPORT("window-objects/layout/style-sets", windowTotalSizes.mLayoutStyleSetsSize,
"This is the sum of all windows' 'layout/style-sets' numbers.");
REPORT("window-objects/layout/text-runs", windowTotalSizes.mLayoutTextRuns,
REPORT("window-objects/layout/text-runs", windowTotalSizes.mLayoutTextRunsSize,
"This is the sum of all windows' 'layout/text-runs' numbers.");
REPORT("window-objects/layout/pres-contexts", windowTotalSizes.mLayoutPresContext,
REPORT("window-objects/layout/pres-contexts", windowTotalSizes.mLayoutPresContextSize,
"This is the sum of all windows' 'layout/pres-contexts' numbers.");
size_t frameTotal = 0;

28
dom/base/nsWindowMemoryReporter.h
View File

@ -32,19 +32,23 @@ public:
}
mozilla::MallocSizeOf mMallocSizeOf;
nsArenaMemoryStats mArenaStats;
size_t mDOMElementNodes;
size_t mDOMTextNodes;
size_t mDOMCDATANodes;
size_t mDOMCommentNodes;
size_t mDOMEventTargets;
size_t mDOMOther;
size_t mStyleSheets;
size_t mLayoutPresShell;
size_t mLayoutStyleSets;
size_t mLayoutTextRuns;
size_t mLayoutPresContext;
size_t mPropertyTables;
size_t mDOMElementNodesSize;
size_t mDOMTextNodesSize;
size_t mDOMCDATANodesSize;
size_t mDOMCommentNodesSize;
size_t mDOMEventTargetsSize;
size_t mDOMOtherSize;
size_t mStyleSheetsSize;
size_t mLayoutPresShellSize;
size_t mLayoutStyleSetsSize;
size_t mLayoutTextRunsSize;
size_t mLayoutPresContextSize;
size_t mPropertyTablesSize;
uint32_t mDOMEventTargetsCount;
uint32_t mDOMEventListenersCount;
};
/**
* nsWindowMemoryReporter is responsible for the 'explicit/window-objects'