Tuning Principles

Observe the following guidelines when tuning the performance: The guidelines are as follows:

• Analyze resource bottlenecks from multiple aspects to identify the root cause. The poor system performance of an aspect may be caused by the problem of other aspects. For example, high CPU usage may be caused by insufficient memory capacity and the CPU resources are exhausted by memory scheduling.
• Adjust only one parameter of a specific aspect that affects the performance at a time. It is difficult to determine the parameter that causes the impact on performance when multiple parameters are adjusted at the same time.
• During system performance analysis, the performance analysis tool occupies certain system resources, such as CPU and memory resources. The running of the analysis tool may cause a more serious resource bottleneck in some aspects of the system.