On Mon, Mar 19, 2012 at 9:47 PM, Geoffrey Garen <[email protected]> wrote:
> > I intend to add a graph in the inspector's timeline panel that shows the > number of global handles for V8. The V8 bindings use maps for WebCore > objects to global handles to V8 wrapper objects. A steady increase of > global handles is often a sign of a memory leak within v8 bindings. > > Are you sure that all wrappers go into a map? What about wrappers for > ScriptWrappable objects? > That's right, not all objects are kept in maps, but all objects have a global handle somewhere. > > > My question to the JSC folks is, is there a similar counter in JSC? I.e. > something that corresponds to the number of wrapped WebCore objects (and > potentially other objects that are kept alive without necessarily being > reachable from javascript)? > > You could read the length of JSC::HandleHeap::m_weakList. Since that's an > expensive operation, I'd suggest computing the length during garbage > collection and then caching it. > awesome, thanks -jochen > > Geoff >
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