lkml.org 
[lkml]   [2020]   [Sep]   [22]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [External] Re: [PATCH] mm/memcontrol: Add the drop_cache interface for cgroup v2
Chunxin Zang writes:
>My usecase is that there are two types of services in one server. They
>have difference
>priorities. Type_A has the highest priority, we need to ensure it's
>schedule latency、I/O
>latency、memory enough. Type_B has the lowest priority, we expect it
>will not affect
>Type_A when executed.
>So Type_A could use memory without any limit. Type_B could use memory
>only when the
>memory is absolutely sufficient. But we cannot estimate how much
>memory Type_B should
>use. Because everything is dynamic. So we can't set Type_B's memory.high.
>
>So we want to release the memory of Type_B when global memory is
>insufficient in order
>to ensure the quality of service of Type_A . In the past, we used the
>'force_empty' interface
>of cgroup v1.

This sounds like a perfect use case for memory.low on Type_A, and it's pretty
much exactly what we invented it for. What's the problem with that?

\
 
 \ /
  Last update: 2020-09-22 11:51    [W:0.097 / U:0.324 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site