You need to concern several things to monitor and optimize the performance of your CPU.
% Processor Time
The percentage of time the processor is busy performing
tasks.
Desired value is below 80%.
Interrupt per
second
This is the number of device interrupts the processor is
handling each second
Desired value is below 3500 on a Pentium or RISC
computer.
Processor Queue
Length
The number of outstanding requests in the processor has in
the queue.
Desired value is under 2.
You use programs(such as NT Performance Monitor) to monitor the performance of CPU.
When you find a CPU is not
performing well, do NOT buy another CPU intermediately.
The problem may be caused insufficent RAM, Hard Disk Space,
bad Program design and bad Peripherals. You need to
indicate the problem first.
Heat is released when CPUs run. High temperature, however, decrease the performance of CPU. You, therefore, need a fan to cool down the CPU.
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