From: Dave Gudewicz [david.gudewicz@abbott.com]
Sent: Thursday, September 07, 2000 3:42 PM
To: Info-VAX@Mvb.Saic.Com
Subject: Re: QUANTUM on newer systems

> Not to get too crazy with this but .. you see the problem
> with a WSDEFAULT of 150 and thrown into an image on login...
> You need to page in a largish image but can't grow your working
> set *yet*.  Not a pretty sight...
>
> Anyhow, I have found as a rule of thumb:
>
> AWSTIME = 2 * QUANTUM
>
> In othe rwords, I adjust or attempt to adjust every other slice.
> My thinking is that scouring for page fault totals via AWSTIME
> must introduce overhead itself (AWSTIME can only be adjusted down
> to 4 or 4 * 20 msec interval).
>
> Works for me.
>
> Rob
>

Whats interesting here (and now turns into yet another question) is that
both QUANTUM and AWSTIME default to 20.  Why?

And being the chicken that I am I lowered both QUANTUM and AWSTIME on 2
clustered, memory rich (3 GB) DS20Es to 10 this afternoon.  So far, no
smoke.

Dave...