I seem to have seen this one already.

On Tue, Apr 8, 2008 at 8:23 PM, cwillu <[EMAIL PROTECTED]> wrote:
> Is it possible to disable the group scheduler completely (both
>  FAIR_CGROUP and FAIR_USER off)?
>
>
> Otherwise I really suspect the current config is going to cause varied
>  minor but widespread issues.  Your printer requires a software
>  rasterizer?  The desktop will get laggy when you print.  Copying some
>  big files to another machine via nautilus sftp://?  The sshd process
>  will start hurting interactivity.  Nicing doesn't help either of those
>  cases.  Try using /sys/kernel/uids/*/cpu_share instead? (and do we
>  really expect users to figure that out?)  Oops, now xorg doesn't get
>  enough processor time to keep the gui running smoothly, but only if
>  you're using certain video chipsets that have Xorg drivers that don't
>  off-load certain tasks to the videocard.  All issues I've run into
>  since updating to hardy (after using cfs and ck's sd and staircase
>  schedulers for years alongside stock ubuntu and mainline kernels,
>  without any of these issues).  :)
>
>
> Nicing apt and updatedb no
>  longer does the obvious thing, while cpu_share ends up being far too
>  broad:  either apps get choppy because they can't run, or they get
>  choppy because Xorg can't run.
>
>
> Don't get me wrong, I _very_ happy that we're finally running a cfs
>  kernel by default, but I'd be surprised if I've exhaustively
>  enumerated all the interactions caused by what seems to be an
>  afterthought.
>
>
> I can't think of any workload other than a server where a simple uid
>  based approach would be close to the right thing, and yet here we are,
>  with the server install being the only x86 kernel with the ability to
>  do anything but the uid approach, and the known regressions in the
>  generic kernel not being fixed because of non-specific concerns of
>  regressions, caused by, what, reverting to the old behaviour?
>
>
>
> --
>  Kernel should use CONFIG_FAIR_CGROUP_SCHED
>  https://bugs.launchpad.net/bugs/188226
>  You received this bug notification because you are a direct subscriber
>  of the bug.
>

-- 
Kernel should use CONFIG_FAIR_CGROUP_SCHED
https://bugs.launchpad.net/bugs/188226
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