Different host running modes may enable the host to proactively reduce the CPU frequency when the service is not busy, thereby reducing power consumption. However, when the service load is light, the lower CPU frequency affects the performance of interaction between the host and storage device and increases the host I/O latency. Therefore, if you are concerned about the latency performance under light load, you can configure the host running mode to ensure that the CPU frequency is not reduced and achieve the optimal performance.
You can run lsattr -El proc0 to view CPU frequency.
