Tuning Principles

Comply with the following principles when tuning performance:

• During performance analysis, analyze the system resource bottlenecks from multiple aspects to identify the root causes. For example, high CPU usage may be caused by insufficient memory capacity. The CPU resources are exhausted by memory scheduling.
• Adjust only one performance metric at a time, and ensure that the adjustment does not affect the performance of other modules.
• The analysis tool may consume system resources and aggravate certain system resource bottlenecks. Therefore, avoid or minimize the impact on applications.
• After tuning configurations or code, ensure that the program runs properly and its original functions are not affected.