Subject: Re: performance slowdown after longish uptime
To: Mark Davies <mark@MCS.VUW.AC.NZ>
From: Chuck Silvers <>
List: current-users
Date: 08/25/2000 13:49:14
maybe this is the strangely high swap usage that a couple people have seen.
see what your swap usage is before the machine becomes slow and then compare
that to your swap usage after it's slow.


On Fri, Aug 25, 2000 at 12:09:09PM +1200, Mark Davies wrote:
> We have a problem using current that after a machine has been running for 1 to 
> 2 weeks it gets into a state where performance goes to pot with large amounts 
> of disk activity accompanying any operation.
> eg starting netscape takes over a minute rather than the normal 15 seconds or 
> so.  This persists until you reboot the machine.
> This is with 1.5A on i386 but the problem has been there with any current 
> version we've run back through 1.4P and possibly earlier.  I had been 
> assuming that it was somehow softdep related so upgraded to a new current each
> time significant bugfixes to the softdep code were announced, then waited a
> couple of weeks to see if the problem was still there.  Thinking about it I'm 
> not sure how it could be softdep related as it happens when all you are doing 
> is reading from a filesystem that is not mounted with softdep.
> So can anyone suggest what I can do to try and pin this down?
> cheers
> mark