If I have an app that steadily creates and joins threads, is there a good way of cleaning up the thread-specific data when a thread terminates? Looking at the v8 code, it seems that ThreadManager::FreeThreadResources in v8threads.cc would be a place this might happen when called from the Locker destructor when top_level_ is set. But maybe for good reason not all thread-specific data seems to be cleaned up?
More specifically, as I have lots of threads use an isolate and then terminate, their Isolate::PerIsolateThreadData remains queued off of Isolate::ThreadDataTable list_. While this is essentially a memory leak, even worse, the queue just gets crazy long and the master (so first Isolate user) thread's Isolate::PerIsolateThreadData (being at the end) takes crazy long to find. And the entire massive queue has to be scanned each time a new thread uses the Isolate to determine that the thread does not yet have an Isolate::PerIsolateThreadData. Eventually v8 ends up spending most of its time scanning the Isolate::PerIsolateThreadData queue. The solution would be to be able to get to Isolate::ThreadDataTable::Remove for defunct threads but I didn't see a path there from any embedder API functions. Is there one? And it looks like might be a few other thread-specific bits and bobs that might be left laying around, anyway. Maybe v8 just isn't built with apps that steadily create and destroy thread's in mind and such apps should just use their own thread pool managers and avoid allowing threads to terminate? Easy enough to do that though it's even easier if we don't have to -- the overhead of creating and joining threads is pretty tiny these days, especially relative to the "real work" that likely happens on each thread. Thanks -- -- v8-users mailing list v8-users@googlegroups.com http://groups.google.com/group/v8-users --- You received this message because you are subscribed to the Google Groups "v8-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to v8-users+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
