On 20/04/2015 11:51, Marc Cousin wrote: > On 31/03/2015 19:05, David Sterba wrote: >> On Mon, Mar 30, 2015 at 05:09:52PM +0200, Marc Cousin wrote: >>>> So it would be good to sample the active threads and see where it's >>>> spending the time. It could be the somewhere in the rb-tree representing >>>> extents, but that's a guess. >>>> >>> I just need to be told how to do that :) >>> >>> Something like a perf top ? >> >> for i in `pgrep btrfs`; do >> ps $i >> sudo cat /proc/$i/stack 2>/dev/null >> done >> >> and capture samples every second. >> > > Sorry, it took me a while to reproduce this (I needed to be in front of the > machine when it happens :) )
Hi, Anything more I can provide on this issue ? Regards -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
