Re: [PATCH v3] xfs: introduce object readahead to log recovery

2013-08-13 Thread Dave Chinner
On Wed, Aug 14, 2013 at 01:59:02PM +0800, Zhi Yong Wu wrote: > On Wed, Aug 14, 2013 at 1:35 PM, Dave Chinner wrote: > > On Wed, Jul 31, 2013 at 04:42:45PM +0800, zwu.ker...@gmail.com wrote: > >> From: Zhi Yong Wu > >> > >> It can take a long time to run log recovery operation because it is > >>

Re: [PATCH v3] xfs: introduce object readahead to log recovery

2013-08-13 Thread Zhi Yong Wu
On Wed, Aug 14, 2013 at 1:35 PM, Dave Chinner wrote: > On Wed, Jul 31, 2013 at 04:42:45PM +0800, zwu.ker...@gmail.com wrote: >> From: Zhi Yong Wu >> >> 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 >

Re: [PATCH v3] xfs: introduce object readahead to log recovery

2013-08-13 Thread Dave Chinner
On Wed, Jul 31, 2013 at 04:42:45PM +0800, zwu.ker...@gmail.com wrote: > From: Zhi Yong Wu > > 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 o

Re: [PATCH v3] xfs: introduce object readahead to log recovery

2013-08-07 Thread Zhi Yong Wu
HI, xfs maintainers, any comments? On Wed, Jul 31, 2013 at 4:42 PM, wrote: > From: Zhi Yong Wu > > 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,