Question about file system checks

Ivan Voras ivoras at freebsd.org
Fri Mar 28 15:37:06 PDT 2008


On 28/03/2008, Max Laier <max at love2party.net> wrote:

> Can you please give more details about your benchmark?  It seems to me
>  that the only thing you are measuring is how many files you managed to
>  touch between the last sync(2) and plugging the power.  This is not an
>  interesting number.

I'd say it's mildly interesting, for a file server. :)

>What would be interesting is to stop the syncer,
>  touch a known number of files and then pull the plug.
>
>  But in the end it boils down to: There is fsync to build transactions -
>  use it or else.  If you find that you lose fsync'ed files, that's a
>  reason for concern, of course.

You are right, of course. If I get the chance I'll redo the whole
thing with fsync.


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