Chunxin Zang writes:
Please forgive me for not being able to understand why setting memory.low for Type_A can solve the problem. In my scene, Type_A is the most important, so I will set 100G to memory.low. But 'memory.low' only takes effect passively when the kernel is reclaiming memory. It means that reclaim Type_B's memory only when Type_A in alloc memory slow path. This will affect Type_A's performance. We want to reclaim Type_B's memory in advance when A is expected to be busy.
That's what kswapd reclaim is for, so this distinction is meaningless without measurements :-)
