Date: Mon, 11 Mar 2002 08:23:38 -0500 From: Brian T.Schellenberger <bts@babbleon.org> To: Kris Kennaway <kris@obsecurity.org>, BOUWSMA Beery <freebsd-user@netscum.dyndns.dk> Cc: hackers@FreeBSD.ORG Subject: Re: Performance of FreeBSD vs NetBSD (was: Re: Performance of -current vs -stable) Message-ID: <20020311132340.105D6BA05@i8k.babbleon.org> In-Reply-To: <20020311002534.A9838@xor.obsecurity.org> References: <200203102005.g2AK5SN99334@beerswilling.netscum.dyndns.dk> <20020311002534.A9838@xor.obsecurity.org>
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On Monday 11 March 2002 03:25 am, Kris Kennaway wrote:
| On Sun, Mar 10, 2002 at 09:05:28PM +0100, BOUWSMA Beery wrote:
| > I built both a WITNESS and a WITNESSless kernel with more recent
| > k0deZ, and in the case of playing an mp3 file with `mpg123', I
| > saw practically no difference between the two, based on %cpu as
| > shown by `top' (like I say, completely unscientific and inaccurate)
|
| As you are no doubt aware there are significant infrastructural
| changes in -current relating to SMP scalability. It's in a very
| interim state at the moment, and one of the downsides is increased
| interrupt latency and lock contention for certain operations (yes,
| audio playback is one of them).
|
| Basically, it's a known issue.
At -stable as well as -current or at -current only?
The original report here was there a provious thread had established some
issues with -current, but he did some testing and there are issues with
-stable as well. Are those known issues, too?
|
| Kris
--
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