On Thu, Sep 17, 2009 at 05:04:11PM -0500, Steven Pratt wrote: > Chris Mason wrote: > >On Thu, Sep 17, 2009 at 04:17:14PM -0400, Chris Mason wrote: > >>[ crashes on runs involving unmounts ] > >> > >>The run is still going here, but it has survived longer than before. > >>I'm trying with Yan Zheng's patch: > >> > >>From: Yan Zheng <zheng.yan@xxxxxxxxxx> > >>Date: Fri, 11 Sep 2009 16:11:19 -0400 > >>Subject: [PATCH] Btrfs: improve async block group caching > > > >Quick update, I got through a full run of Steve's test with this > >applied. I'll start a few more ;) > Seems to work for me too! Got through all the random write tests > with no problems. Will kick off full run overnight. Thanks again. I've updated the btrfs-unstable tree to include Yan Zheng's fix. I've also included two more buffered writeback speedups, and I expect these to make a difference on the multi-threaded tests. I took a look at 1MB O_DIRECT writes, and the latencies of sending off checksumming to the checksum threads seem to be the biggest problem. I get full tput at 8MB O_DIRECT writes, so for now I'm going to leave this one alone. -chris -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
