How to test load performance on linux(redhat)

[nataris]

Anyone know any tool to test load performance such as cpu, memory, io disk. Please, help to recommend.

thanks

[Alexander Chuzhoy]

check the following tools (come with the distribution) vmstat,iostat,sar

[nataris]

I don't want performance monitoring tool. I wnat to know only test load performance tool.

Anyway, thanks for kindly answer

[Justin_99 · Accepted solution]

I have used this to put high loads on systems before. Can do combinations of i/o, memory usage, cpu all at the same time or individually.

http://weather.ou.edu/~apw/projects/stress/