Re: Weird GC

2014-01-31 Thread Benedict Elliott Smith
You should expect to see lines of output like: vmop[threads: total initially_running wait_to_block][time: spin block sync cleanup vmop] page_trap_count 0.436: Deoptimize [ 10 0 0] [ 0 0 0 0 0]

Re: Weird GC

2014-01-31 Thread Joel Samuelsson
Thanks for your help. I've added those flags as well as some others I saw in another thread that redirects stdout to a file. What information is it that you need? 2014-01-29 Benedict Elliott Smith : > It's possible the time attributed to GC is actually spent somewhere else; > a multitude of tas

Re: Weird GC

2014-01-29 Thread Benedict Elliott Smith
It's possible the time attributed to GC is actually spent somewhere else; a multitude of tasks may occur during the same safepoint as a GC. We've seen some batch revoke of biased locks take a long time, for instance; *if* this is happening in your case, and we can track down which objects, I would