On Fri, Nov 20, 2009 at 04:01:56PM +0000, Simon Waters wrote:

> On Friday 20 November 2009 15:52:13 J. Roeleveld wrote:
> > 
> > If it's a collection of different logfiles adding up to 4KB in size per
> > email, then you might want to recheck your syslog-configuration.
> 
> Probably pays to know what file system and mount options are applicable here 
> as well.
> 
> As I find it all too believable one could make a filesystem eat a block per 
> distinct write these days.

If the OP is measuring I/O rates, not disk storage, then the simplest
explanation is failure to turn off synchronous syslog writes.

        FAQ (Linux syslog.conf for mail):

            mail.info           -/var/log/maillog

        the "-" is not optional on systems that handle non-trivial
        volumes of email.

-- 
        Viktor.

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