Messages in this thread | | | Date | Fri, 27 Mar 2009 15:25:56 -0700 (PDT) | From | Linus Torvalds <> | Subject | Re: Linux 2.6.29 |
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On Fri, 27 Mar 2009, Linus Torvalds wrote: > > The values are: 0 = off, 1 = normal, 2 = full.
Of course, I don't actually know that "off" really means "never fsync". It may be that it only cuts down on the number of fsync's. I do know that firefox with the original defaults ("fsync everywhere") was totally unusable, and that got fixed.
But maybe it got fixed to "only pauses occasionally" rather than "every single page load brings everything to a screetching halt".
Of course, your browsing history database is an excellent example of something you should _not_ care about that much, and where performance is a lot more important than "ooh, if the machine goes down suddenly, I need to be 100% up-to-date". Using fsync on that thing was just stupid, even regardless of any ext3 issues.
Linus
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