Re: Scheduler degradation since 2.5.66
From: Jamie Lokier (jamie_at_shareable.org)
Date: 12/16/03
- Previous message: Admin: "Attention All School Staff, Personnel, and Students:"
- In reply to: George Anzinger: "Re: Scheduler degradation since 2.5.66"
- Next in thread: George Anzinger: "Re: Scheduler degradation since 2.5.66"
- Reply: George Anzinger: "Re: Scheduler degradation since 2.5.66"
- Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]
Date: Tue, 16 Dec 2003 00:52:51 +0000 To: George Anzinger <george@mvista.com>
George Anzinger wrote:
> Try running the test with a requested sleep time of something less than
> 0.999849 ms. All this is for the x86 which is using this time to do the
> best it can with the PIT which can only get this close to 1 ms ticks. You
> can even vary this number to see exactly where the round up actually
> happens. Ah, life in the nano world :)
Would it be better to program the PIT for lowest frequency that's >= 1.0ms.
-- Jamie
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
- Previous message: Admin: "Attention All School Staff, Personnel, and Students:"
- In reply to: George Anzinger: "Re: Scheduler degradation since 2.5.66"
- Next in thread: George Anzinger: "Re: Scheduler degradation since 2.5.66"
- Reply: George Anzinger: "Re: Scheduler degradation since 2.5.66"
- Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]
Relevant Pages
|