This may not be related to the hang, but 387K freed and a pause of 46ms in garbage collection sounds like a lot. If you can cut out some of your larger memory allocations and deallocations it might help. Avoiding memory allocs will help your frame rate too.
On Feb 16, 11:07 am, Bill Tschumy <b...@otherwise.com> wrote: > I've been battling a hang (deadlock) in OpenGL for the past week. I've > finally realized that the system hangs after the garbage collector runs. > Here is an example from LogCat: > > 02-16 08:49:32.609: INFO/ActivityManager(98): Displayed activity > com.southernstars.skysafari/.SkySafariActivity: 2219 ms (total 2219 ms) > 02-16 08:49:37.369: DEBUG/dalvikvm(1863): GC_FOR_MALLOC freed 4144 objects / > 387544 bytes in 46ms > 02-16 08:49:37.389: ERROR/Adreno200-ES20(1863): gsl_device_waittimestamp > failed in rb_timestamp_wait_on_timestamp > 02-16 08:49:38.516: WARN/SharedBufferStack(1863): > waitForCondition(LockCondition) timed out (identity=157, status=0). CPU may > be pegged. trying again. > ... > ... > > Anytime the LogCat shows a GC_FOR_MALLOC or a GC_EXTERNAL_ALLOC, the app > hangs with OpenGL in this LockCondition. It appears that GC_EXPLICT, for the > most part, does not cause a problem (maybe these are smaller allocs, I don't > know). > > Searching the internet, it seems that people are reporting things like this > on the HTC phones. Usually they say the problem is very sporadic and hard to > reproduce. I can reproduce it easily by simply putting a System.gc() call > into my application flow or by doing something that allocates a chunk of > memory forcing the GC to run. > > I have this problem on an HTC Evo. My development partner has a different > phone and is not seeing this. > > I'm totally at a loss what to do next. Has anyone seen anything like this or > have a plausible explanation for what is going on? Is there any way it could > be something unusual we are doing in the app? Or is it just a bug in the HTC > system or drivers? > > Thanks for any help. > > -- > Bill Tschumy > Otherwise -- Longmont, COhttp://www.otherwise.com -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
