by Hi all,
We have the following system:
Hardware:
DEC Prioris HX server
128 Mb memory
512 Kb Cache
Dual Pentium 133 MHz.
Adaptec 2940 Scsi controller.
Software:
SCO UNIX 3.4.2v4.2
SCO MPX
Foxpro for UNIX 2.6
Problem:
The system is slow but the sar report give:
33% user, 55%system, 5 %i/o and 7%.
This is by +/- 80 users, our system must handle 100-130 users.
sar -r gives by 60-65 user noswapping.
sar -r gives by >65 swapping.
What is happening??????
How can we tune this UNIX box to perform better????
The system has idle time, so how can we use these 2 CPUs better????
We have tried to install 32 Mb additional RAM, but the system went
slower. Our SCO dealer says that the cache doesnt work in the area
128M + 32M. The kernel is placed there and works in a non cached area.
I think we need the memory, so how can we pass this problem????
Who of the readers has a SCO UNIX system running with Foxpro for UNIX
and > 80 users?????
Does he/she have the same problems?????
Any help is appreciated.
Please post follow-up articles and send me a personal e-mail to
Thanks,
Freddy de Vries