[H2D/D2H Bandwidth] Impact of the OS Kernel Log Level

Symptom

The bandwidth test is performed cyclically, leading to suboptimal bandwidth test results.

Possible Causes

The level of system kernel logs is too high. As a result, the bandwidth test result does not meet the expectation.

Solution

1. Run the cat /proc/sys/kernel/printk command.
2. If information similar to "7 4 1 7" is displayed, the system kernel log level is too high.
3. Change the kernel log level to 4 4 1 7 or earlier.