+cc Roman who has been looking the most at this area On Mon, Apr 27, 2020 at 03:48:13PM +0800, Yang Yingliang wrote: > +cc linux-mm@xxxxxxxxx <mailto:linux-mm@xxxxxxxxx> > > On 2020/4/26 19:21, Yang Yingliang wrote: > > Hi, > > > > When I doing the follow test in kernel-5.7-rc2, I found mem-free is > > decreased > > > > #!/bin/sh > > cd /sys/fs/cgroup/memory/ > > > > for((i=0;i<45;i++)) > > do > > for((j=0;j<60000;j++)) > > do > > mkdir /sys/fs/cgroup/memory/yyl-cg$j > > done > > sleep 1 > > ls /sys/fs/cgroup/memory/ | grep yyl | xargs rmdir > > done Should be easy enough to reproduce, thanks for the report. I'll try to take a look later this week, unless Roman beats me to it. Is this a new observation in 5.7-rc2? Can you provide /sys/fs/cgroup/unified/cgroup.stat after the test?
