On Tue, Sep 19, 2006 at 03:51:52PM +0100, Mark Adams wrote: > > > > Do you have auto-learn and SA's bayesian mode enabled? If > > so you may be seeing a lot of write activity from SA > > updating its dictionaries (especially if you're using the > > default GDBM back-end, which is very inefficient). > > Currently this isn't enabled, I've also disabled the URIDNSBL and > Hashcash checking options incase this was the issue - but this has not > helped the situation
neither of those should be doing significant disk IO. > > To assist in diagnosing, you might want to install iostat > > or similar and see what pattern of activity (number of > > transactions, number of blocks read/written) you're seeing > > during mail scanning. > > Have been using iostat and sar, but will have to look into the stats > these are getting in more detail, only problem being they take the stats > on the whole logical volume group, which includes the SMB services. Do > you know if there is any way to get iostats on a specific process? not under Linux as far as I know, though it may be possible to use oprofile's output to infer this. -- ``If you can tell good advice from bad advice, you don't need any advice.'' -- ## List details at http://www.exim.org/mailman/listinfo/exim-users ## Exim details at http://www.exim.org/ ## Please use the Wiki with this list - http://www.exim.org/eximwiki/
