Török Edwin wrote: > Török Edwin wrote: >> Hi, >> >> On latest -git of 2.6.25 I am getting lots of wakeups from xfsaild. >> 23.5% ( 33.3) xfsaild : schedule_timeout (process_timeout) >> > > [Should I Cc: xfs mailing list / lkml on this?] > > The problem seems to be with the timeout logic in xfsaild_push, which > can return 3 timeout values (msecs): 1000, 10, 20, 30. > I inserted a marker and attached a probe function, schedule_timeout > always got called with 9 jiffies (which is 30 msecs, I have HZ=300). > > Changing xfs_trans_ail.c:270 from "tout += 20" to "tout = 1000", made > xfsaild only do 1 wakeup/s instead of 33! > > For some reason xfs_aild always thinks it has work (I/O) to do, and > never chooses the 1000 msec sleep value. >
sounds like an XFS bug... worth reporting to the xfs/lkml folks for sure. _______________________________________________ Power mailing list [email protected] http://www.bughost.org/mailman/listinfo/power
