2.2.14 feels slow and non-interactive.

[Rogier Wolff]

Alan Cox wrote:
> > same time. After that when the database is doing its stuff both 
> > the database process and netscape gets stuck in D-state in wait_on_page
> > for many seconds while the disk (Adaptec AIC7xxx contr) is trashing 
> > like mad. If I close netscape during this I can see the netscape
> 
> That sounds quite normal for a machine that has passed the point where the
> working set for the active processes no longer fits in ram.
> 
> > ordered a new one. I sort of thought it was just being overloaded, 
> > and maybe it is, but processes being stuck in D-state for such a long 
> > time doesn't seem right. And since you asked...

> Lots of paging by the sound of it. It is probably not "stuck in D
> state" but "going in and out of D state a lot". The only case I'd
> expect it to stay in D a lot would be if it is paging stuff in/out
> and hits a scsi problem at which point it would stay stuck while the
> scsi error handling kicked in but you'd have a log entry if so

Well, some bugs DO cause a "stuck in D state", but that case is
recognizable by the system being able to "quiet down" with NO disk
activity very easily. 

This is just a case of frantic paging. Buy more RAM. 

			Roger.


-- 
** R.E.Wolff en BitWizard.nl ** http://www.BitWizard.nl/ ** +31-15-2137555 **
*-- BitWizard writes Linux device drivers for any device you may have! --*
 "I didn't say it was your fault. I said I was going to blame it on you."

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