On Wed, Aug 14, 2013 at 03:16:03PM +0800, zwu.kernel@xxxxxxxxx wrote: > From: Zhi Yong Wu <wuzhy@xxxxxxxxxxxxxxxxxx> > > It can take a long time to run log recovery operation because it is > single threaded and is bound by read latency. We can find that it took > most of the time to wait for the read IO to occur, so if one object > readahead is introduced to log recovery, it will obviously reduce the > log recovery time. > > Log recovery time stat: > > w/o this patch w/ this patch > > real: 0m15.023s 0m7.802s > user: 0m0.001s 0m0.001s > sys: 0m0.246s 0m0.107s > > Signed-off-by: Zhi Yong Wu <wuzhy@xxxxxxxxxxxxxxxxxx> Looks good. Reviewed-by: Ben Myers <bpm@xxxxxxx> Applied. _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs
