On Thu, 2010-09-23 at 12:27 +1000, Dave Chinner wrote: > From: Dave Chinner <dchinner@xxxxxxxxxx> > > I have been seeing relatively frequent pauses in transaction throughput up to > 30s long under heavy parallel workloads. The only thing that seemed strange > about them was that the xfsaild was active during the pauses, but making no > progress. It was running exactly 20 times a second (on the 50ms no-progress > backoff), and the number of pushbuf events was constant across this time as > well. IOWs, the xfsaild appeared to be stuck on buffers that it could not push > out. . . . If you like I can take this patch directly (i.e., not wait for you to send a separate pull request). It fixes a real bug but since delayed logging still an experimental feature I am not inclined to send it to Linus at this point in the cycle. Let me know if you disagree. -Alex _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs