[JBoss-user] [Performance Tuning] - Re: Low CPU Utilization on Linux

2005-08-09 Thread jizzoe
Hi Everyone, Thanks for the responses. I will try to answer all questions to help me get to the bottom of this. By CPU Utilization, I mean we are never seeing all 4 CPUs go above a combined amount of 120%. To illustrate, here are a few "top" printouts: CPU0 states: 15.1% user, 3.3% system,

[JBoss-user] [Performance Tuning] - Re: Low CPU Utilization on Linux

2005-08-03 Thread jizzoe
Hi Nickman, Thanks for the response. Yes, we are seeing slowdown, measurably. The CPU goes to 100%, but it's not the expected way. We have 4 processors. Each processor gets up to 25% (never any higher): 100% = 25% X 4. Once this threshold is reached, JBoss crawls. This is observed in a p

[JBoss-user] [Performance Tuning] - Low CPU Utilization on Linux

2005-08-02 Thread jizzoe
I'm facing a problem where we are running JBoss 3.2.6 on Linux 9.0 in a clustered production environment that recieives very high traffic. Each box has 4 processors. We are noticing that each CPU never goes above 25% CPU Utilization. Even with high loads and after removing all but one box f