Re: [patch, 2.6.11-rc2] sched: RLIMIT_RT_CPU_RATIO feature

From: Jack O'Quin
Date: Fri Jan 28 2005 - 03:13:36 EST


Ingo Molnar <mingo@xxxxxxx> writes:

> * Nick Piggin <nickpiggin@xxxxxxxxxxxx> wrote:
>
>> But the important elements are lost. The standard provides a
>> deterministic scheduling order, and a deterministic scheduling latency
>> (of course this doesn't mean a great deal for Linux, but I think we're
>> good enough for a lot of soft-rt applications now).
>>
>> > [1] http://www.opengroup.org/onlinepubs/007908799/xsh/realtime.html
>
> no, the patch does not break POSIX. POSIX compliance means that there is
> an environment that meets POSIX. Any default install of Linux 'breaks'
> POSIX in a dozen ways, you have to take a number of steps to get a
> strict, pristine POSIX environment. The only thing that changes is that
> now you have to add "set RT_CPU ulimit to 0 or 100" to that (long) list
> of things.

I agree. Is the rest of this list documented somewhere?
--
joq
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/