Re: fsync delays for a long time.

Alexander Moibenko
2002-02-14T21:13:13Z

On Thu, 14 Feb 2002, Alan Cox wrote:

> > > fsync on a very large file is very slow on the 2.2 kernels
> >
> > This could very well be due to request allocation starvation.
> > fsync is sleeping in __get_request_wait() while bonnie keeps
> > on stealing all the requests.
>
> That may amplify it but in the 2.2 case fsync on any sensible sized file
> is already horribly performing. It hits databases like solid quite badly
>
please elaborate on "sensible sized". In my case it is less then 20MB.
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Alexander N. Moibenko, Integrated Systems Development, CD, Fermilab
Tel: (630)840-3937
email: moibenko@fnal.fnal.gov
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