Re: Disk...

From: Dominic Marks (no email)
Date: Mon Apr 01 2002 - 04:50:30 EST


On Sun, Mar 31, 2002 at 08:23:19PM -0800, Keith Woodworth wrote:
>
>
> On Sun, 31 Mar 2002, Ralf Hildebrandt wrote:
>
> |->On Sat, Mar 30, 2002 at 02:31:00PM -0800, Keith Woodworth wrote:
> |->
> |->> since switching to postfix I seem to see a little delay in processing
> |->> command line stuff. For ex. I'll do an ls it takes about 5 secs soemtimes
> |->> and other times it take a split second in the same dir.
> |->
> |->Do you use ext3?
>
> No its under BSD/OS. CPU usage is mostly 90%+ idle. But I'm thinking the
> IDE disk is where is causing these little hesitations.

I don't know if softupdates, as used in the *BSDs ever made it into
BSD/OS. If they did - make sure they are turned on. It makes a big
difference on slower discs. Another FreeBSD technology is DirHash
which may not be directly useful here but is brilliant in some
circumstances - and removes more acitivity from the disc. Again,
perhaps BSD/OS has implementated these or similar things.

> I'm looking at I/O stats now to see whats up.
>
> Thanks,
> Keith
>
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-- 
Dominic
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