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→Cycle collector heap dump
(→Cycle collector heap dump: update for https://bugzilla.mozilla.org/show_bug.cgi?id=714286) |
Amccreight (talk | contribs) |
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| Line 120: | Line 120: | ||
Then evaluate this expression: | Then evaluate this expression: | ||
window.QueryInterface(Components.interfaces.nsIInterfaceRequestor). | |||
getInterface(Components.interfaces.nsIDOMWindowUtils). | |||
cycleCollect(Components.classes["@mozilla.org/cycle-collector-logger;1"] | |||
.createInstance(Components.interfaces.nsICycleCollectorListener)) | |||
In version 11 or earlier, you probably want this version, which will run the GC first: | |||
window.QueryInterface(Components.interfaces.nsIInterfaceRequestor). | window.QueryInterface(Components.interfaces.nsIInterfaceRequestor). | ||
getInterface(Components.interfaces.nsIDOMWindowUtils). | getInterface(Components.interfaces.nsIDOMWindowUtils). | ||
garbageCollect(Components.classes["@mozilla.org/cycle-collector-logger;1"] | garbageCollect(Components.classes["@mozilla.org/cycle-collector-logger;1"] | ||
.createInstance(Components.interfaces.nsICycleCollectorListener)) | .createInstance(Components.interfaces.nsICycleCollectorListener)) | ||
Nightly builds before 2012 defaulted to all traces, newer builds logs the | Nightly builds before 2012 defaulted to all traces, newer builds logs the | ||
| Line 133: | Line 140: | ||
garbageCollect(Components.classes["@mozilla.org/cycle-collector-logger;1"] | garbageCollect(Components.classes["@mozilla.org/cycle-collector-logger;1"] | ||
.createInstance(Components.interfaces.nsICycleCollectorListener).allTraces()) | .createInstance(Components.interfaces.nsICycleCollectorListener).allTraces()) | ||
This creates a file named cc-edges-NNNN.log and writes a dump of the heap known to the cycle collector, which includes JS objects and also native C++ objects that participate in cycle collection, to the file. | This creates a file named cc-edges-NNNN.log and writes a dump of the heap known to the cycle collector, which includes JS objects and also native C++ objects that participate in cycle collection, to the file. | ||