At 08:35 AM 2/1/99 -0500, Dave Sill wrote:
>Mark Delany <[EMAIL PROTECTED]> wrote:
>>
>>Certainly you want to make sure you have sufficient memory. What did vmstat
>>tell you about your paging?
>
>Specifically, what's the scan rate (the "sr" column)? According to
>Solaris wizard Casper Dik, "The only reliable measurement of memory
>shortage is the scan rate."
I'm certainly comfortable bowing to Casper's knowledge. He is a boon to
Solaris users to be sure (and a boon to Sun for that matter).
I tend to look at paging simplistically in most cases. If you're paging out,
then you're running short of memory, but one hopes that these:
> Memtool, available from http://playground.sun.com/pub/memtool, will
> help you see where/how your memory is being used.
offer a more sophisticated analysis.
In all cases, the answer to the original question remains the same. Do some
measurements and monitoring to determine which resource(s) are stretched. A
guess could easily be wrong and there is nothing worse than spending money
on an upgrade only to find it makes no difference.
Regards.
