Re: [patch, 2.6.11-rc2] sched: /proc/sys/kernel/rt_cpu_limit tunable

From: Ingo Molnar (mingo_at_elte.hu)
Date: 01/25/05

  • Next message: Chris Wright: "Re: [patch, 2.6.11-rc2] sched: /proc/sys/kernel/rt_cpu_limit tunable" 
    Date:	Tue, 25 Jan 2005 22:57:58 +0100
To: Chris Wright <chrisw@osdl.org>

    * Chris Wright <chrisw@osdl.org> wrote:

    > * Ingo Molnar (mingo@elte.hu) wrote:
    > > well, there's setrlimit, so you could add a jackd client callback that
    > > instructs all clients to change their RT_CPU_RATIO rlimit. In theory we
    > > could try to add a new rlimit syscall that changes another task's rlimit
    > > (right now the syscalls only allow the changing of the rlimit of the
    > > current task) - that would enable utilities to change the rlimit of all
    > > tasks in the system, achieving the equivalent of a global sysctl.
    >
    > We've talked about smth. similar in another thread. I'm not opposed
    > to the idea.

    did that thread go into technical details? There are some rlimit users
    that might not be prepared to see the rlimit change under them. The
    RT_CPU_RATIO one ought to be safe, but generally i'm not so sure.

            Ingo
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  • Next message: Chris Wright: "Re: [patch, 2.6.11-rc2] sched: /proc/sys/kernel/rt_cpu_limit tunable"

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