hi,
we are doing some java stress runs (involving network IO). Initially things are all fine and the system responds very fast (avg latency in test 2ms). But hours later when i redo the same test i observe the performace goes down (20 - 60ms). Its the same Jar files, same JVM, and the same LAN over which the stress is runnig. i am not understanding the reason for this behavior.
The lan is 1GBPS and for the stress requirements i m sure we are not using all of it.
So my QNs:
- Can it be because of some switches in the lans?
- Does the machine slow off after some time ( The machines are restarted .. say abt 6months back well before the stress can start; They are RHEL5, XEON 64bit Quad core)
- What is the general way to debug such an issues?
Any help please?
-- ravi