Messages in this thread | | | Date | Sat, 4 Apr 2009 15:19:19 -0700 (PDT) | From | Linus Torvalds <> | Subject | Re: [GIT PULL] Ext3 latency fixes |
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On Sat, 4 Apr 2009, Linus Torvalds wrote: > > Hmm. I can certainly see a very noticeable improvement.
.. and btw, just to put that into perspective - I ended up running with that repeated 'dd+sync+rm' in the background for quite a while, and the machine was in no way unusable. I don't think I saw a single "ooh, that feels really dead" case with anticipatory, although I saw several "bad stutter" cases.
Of course, with the whole "overwrite" case, things are really much smoother, and I can hardly notice anything happening at all. Although I _do_ get an occasional 200-600ms fsync hickup, and I can tell those very clearly. But if that was the worst I'd ever see, I'd be a very happy person. It's a good goal to have, I suspect.
Linus
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