Benchmarking problems


I’‘m trying to run some benchmarks using JabSimul (downloaded from I am running on a CentOS 4.x box (stock kernel 2.6.9) on Java 1.5.0_07-b03. I have changed the wildfire startup script to set a ulimit of 10000 and the shell where I’'m running JabSimul to 16000. A cat on /proc/sys/kernel/file-max gives 25078. I am using the stock CentOS PostgreSQL 7.4.13 as the Wildfire data storage and the stock OpenLDAP 2.2.13 for authentication.

I am trying to benchmark 1500 simultaneous connections. JabSimul goes up to about 1030-1040 connections (I can’'t see the exact number because it changes very rapidly) and then starts getting “Connection reset by peer” errors. The number of established connections then continues to go up to about 1240-1250 and then oscillates but with a general downward trend.

Any ideas what might be going wrong and how to fix it?



Message was edited by: mcamou

Got it. Turns out the docs for JabSimul are nonexistent. I thought I was going to Wildfire but I was actually connecting to a different host.