On Tue, Sep 22, 2020 at 8:43 PM Chris Down <chris@xxxxxxxxxxxxxx> wrote: > > 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 :-) Thanks for these suggestions, I will give it a try. Best wishes Chunxin
