Messages in this thread | | | Date | Mon, 6 Apr 2009 14:31:57 -0400 | From | Theodore Tso <> | Subject | Re: [PATCH 0/8][RFC] IO latency/throughput fixes |
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On Mon, Apr 06, 2009 at 08:45:09AM -0700, Linus Torvalds wrote: > > With that request size limiting, my fsync pauses tend to be in the 250ms > range, with a one 0.75s outlier in the last few minutes. I can definitely > feel that quarter-second thing, and the .75s pause was a real stutter, but > boy what a difference. I don't get the uncontrollable urge to kill that > nasty background writer any more.
Cool! Maybe we can make things even better, but given where we are at, this brings up an question: given Jens block latency patches (thanks, Jens!), and the patches which add the flush on replace-via-rename/replace-via-truncate for ext3 data=writeback, should we make ext3 data=writeback the default for 2.6.30?
- Ted
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