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    SubjectRe: [RFC][PATCH] memcg soft limit (yet another new design) v1
    On Sat, 28 Mar 2009 23:57:47 +0530
    Balbir Singh <balbir@linux.vnet.ibm.com> wrote:

    > * Balbir Singh <balbir@linux.vnet.ibm.com> [2009-03-28 23:41:00]:
    >
    > > * KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> [2009-03-27 13:59:33]:
    > >
    > > > ==brief test result==
    > > > On 2CPU/1.6GB bytes machine. create group A and B
    > > > A. soft limit=300M
    > > > B. no soft limit
    > > >
    > > > Run a malloc() program on B and allcoate 1G of memory. The program just
    > > > sleeps after allocating memory and no memory refernce after it.
    > > > Run make -j 6 and compile the kernel.
    > > >
    > > > When vm.swappiness = 60 => 60MB of memory are swapped out from B.
    > > > When vm.swappiness = 10 => 1MB of memory are swapped out from B
    > > >
    > > > If no soft limit, 350MB of swap out will happen from B.(swapiness=60)
    > > >
    > >
    > > I ran the same tests, booted the machine with mem=1700M and maxcpus=2
    > >
    > > Here is what I see with
    >
    > I meant to say, Here is what I see with my patches (v7)
    >
    Hmm, I saw 250MB of swap out ;) As I reported before.

    -Kame




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