Re: Tuning kernel for Pyramid Nile

Normally you will find a starting point in the $INFORMIXDIR/release/* directory. Assuming you have already set up these parameter, and the onstat -g seg , shows no more than one virtual segment, just give us some answers: 1) What is the output of onstat -p ? 2) Do you experiment a lot of latch conditions? 3) What about the locking requests?, does your lockwaits increase dramatically? 4) What is your disk layout? , Is it good for the highly used tables 5) Are you sure you have the physical and logical logs in a separate dbspace ? 6) If your users connect trough a network, have you monitored the streams for the type of network? , If not , Do they connect through the shared memory? 7) What is your actual configuration for NETTYPE configuration? (Important to improve the initial connection a process must made via the poll threads !) As you can see, there is a lot of stuff involved in performance tuning, so your question should be more specific, otherwise, I think recommendations could not target your specific needs. Regards, Mario Estrada -----Original Message----- From: jblatz@worldnet.att.net <jblatz@worldnet.att.net> To: informix-list@iiug.org <informix-list@iiug.org> Date: Viernes 18 de Septiembre de 1998 05:37 PM Subject: Tuning kernel for Pyramid Nile >We are running Informix ver 7.24 on a Pyramid Nile 100. I would like >some suggestions for proper kernel tuning for Shared Memory and Semaphore >parameters. Informix has given us some very vague suggestions but we >are still having problems. > >We typically have about 175 users doing transaction processing. We have >1 gig of memory. > >Any help would be appreciated. > >-----== Posted via Deja News, The Leader in Internet Discussion ==----- >http://www.dejanews.com/rg_mkgrp.xp Create Your Own Free Member Forum >