From: Lee Revell <rlrevell@joe-job.com>
To: Felix Oxley <lkml@oxley.org>
Cc: kernel@wolff-online.nl, linux-kernel@vger.kernel.org
Subject: Re: Good performance (hard realtime ??) on 2.6.16 patched with patch-2.6.16-rt29 from Ingo Molnar
Date: Mon, 12 Jun 2006 11:26:03 -0400 [thread overview]
Message-ID: <1150125964.22720.40.camel@mindpipe> (raw)
In-Reply-To: <FEBBD28D-B00D-42DB-A2EB-13A501D7FBC2@oxley.org>
On Mon, 2006-06-12 at 11:12 +0100, Felix Oxley wrote:
> (Regarding Hard Real Time, my understanding is that that depends on a
> _guarantee_ that the system will always be able to produce the
> 'result' within the required interval. Ingo's -rt patches may give
> exceedingly good responsiveness but they offer no guarantees, so they
> cannot be considered Hard Real Time)
The -rt kernel is capable of hard realtime, modulo any bugs, but no one
has yet done an analysis of the few non-preemptible code paths to
determine what guarantees it can make.
Lee
next prev parent reply other threads:[~2006-06-12 15:25 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-06-12 9:50 Good performance (hard realtime ??) on 2.6.16 patched with patch-2.6.16-rt29 from Ingo Molnar kernel
2006-06-12 10:12 ` Felix Oxley
2006-06-12 11:06 ` Carl, Wolff
2006-06-12 15:26 ` Lee Revell [this message]
2006-06-13 11:08 ` Esben Nielsen
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