Key performance test indicators

Judgment principles for key performance indicators:
1. The average CPU occupancy rate should be less than 85%.
2. The response time follows the 3/5/8 principle, and it is unreasonable to exceed 8s.
3. The average page in/s exchange rate of memory pages cannot be greater than 80, otherwise it indicates that the physical memory is insufficient.
4. %processor time: CPU usage, if the value continues to exceed 95%, it indicates that the bottleneck is the CPU.
5. private bytes: The number of bytes privately occupied by the process. If the value increases significantly, it indicates that there may be a memory leak.
6. processor queue length: The number of threads in the processing queue, which displays the last observed value. The reference value is less than 2, and if it is continuously higher than 2, it means that the processor may have a bottleneck.
7. Available mbytes: The available number of physical memory. If the value is 4M or less, it indicates that the total memory may be insufficient, or a program has not released memory.
8. bytes total/sec: The byte transfer rate, divided by the current network bandwidth value, the result should be less than 50%.
Linux:
Average load: Average load, the number of currently active processes per CPU is not more than 3 is good, More than 5 indicates serious problems with machine performance.