On Wed, 2004-07-21 at 03:24, Martin Phillips wrote:

> We may also be looking for the wrong thing here.  A semaphore collision
> count of 6 really is nothing to get excited over, especially if the system
> had been up for a while.  Looking back to Karl's original posting, I think
> we need to know a bit more about how the "performance hits" exhibit
> themsleves.

I've done a bit of checking and came to the conclusion that IO was NOT
an issue, as both disks loads are very even and in the low teens to low
20%-ile of use.

I changed the uniVerse tunable FSEMNUM from 23 to 53. Today, so far, the
load average is in the low 2s instead of in the 3s and 4s. Of course we
only have 30 of 42 users, so time will tell...

The symptoms of the performance problem is that users notice things
going very slowly, especially selects and sorts, but also when typing
text there are pauses of parts of a second to a couple seconds when the
system is very sluggish.

-- 
Karl L. Pearson
Director of IT,
ATS Industrial Supply
Direct: 801-978-4429
Toll-free: 888-972-3182 x29
Fax: 801-972-3888
http://www.atsindustrial.com
[EMAIL PROTECTED]
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