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    SubjectRe: [RFC/RFT PATCH v3] sched: automated per tty task groups
    On Tue, Nov 16, 2010 at 01:57:33PM -0500, Stephen Clark wrote:
    > On 11/16/2010 01:16 PM, Lennart Poettering wrote:
    > >On Tue, 16.11.10 09:11, Linus Torvalds (torvalds@linux-foundation.org) wrote:
    > >
    > >>On Tue, Nov 16, 2010 at 9:03 AM, Lennart Poettering
    > >><mzxreary@0pointer.de> wrote:
    > >>>Binding something like this to TTYs is just backwards.
    > >>Numbers talk, bullshit walks.
    > >>
    > >>The numbers have been quoted. The clear interactive behavior has been seen.
    > >Here's my super-complex patch btw, to achieve exactly the same thing
    > >from userspace without involving any kernel or systemd patching and
    > >kernel-side logic. Simply edit your own ~/.bashrc and add this to the end:
    > >
    > > if [ "$PS1" ] ; then
    > > mkdir -m 0700 /sys/fs/cgroup/cpu/user/$$
    > > echo $$> /sys/fs/cgroup/cpu/user/$$/tasks
    > > fi
    > >
    > >Then, as the superuser do this:
    > >
    > > mount -t cgroup cgroup /sys/fs/cgroup/cpu -o cpu
    > > mkdir -m 0777 /sys/fs/cgroup/cpu/user
    > >
    > >Done. Same effect. However: not crazy.
    > >
    > >I am not sure I myself will find the time to prep some 'numbers' for
    > >you. They'd be the same as with the kernel patch anyway. But I am sure
    > >somebody else will do it for you...
    > >
    > >Lennart
    > >
    > So you have tested this and have a nice demo and numbers to back it up?

    I just modified my .bashrc and for my each ssh session, it seems to
    be working fine and creating a cgroup as soon as I ssh into the box.

    Just that it will need little modification to reap the group automatically
    when shell exits.

    Thanks
    Vivek


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