Ubuntu 10.04 kernel 2.6.36
some of our VPS's were crashing the last few days due to cpu load with Java (cpu_hung for 120 seconds errors on console) installing irqbalance seems to have resolved the issue.
But, it did not require a reboot after installing. Is this normal? I am asking because this is something I need to install on all my servers and I need to be 100% sure irqbalance does not require a reboot.