Date: Mon, 11 Mar 2002 00:25:34 -0800 From: Kris Kennaway <kris@obsecurity.org> To: BOUWSMA Beery <freebsd-user@dcf77-zeit.netscum.dyndns.dk> Cc: hackers@freebsd.org Subject: Re: Performance of FreeBSD vs NetBSD (was: Re: Performance of -current vs -stable) Message-ID: <20020311002534.A9838@xor.obsecurity.org> In-Reply-To: <200203102005.g2AK5SN99334@beerswilling.netscum.dyndns.dk>; from freebsd-user@dcf77-zeit.netscum.dyndns.dk on Sun, Mar 10, 2002 at 09:05:28PM %2B0100 References: <200203102005.g2AK5SN99334@beerswilling.netscum.dyndns.dk>
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--M9NhX3UHpAaciwkO Content-Type: text/plain; charset=us-ascii Content-Disposition: inline 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. Kris --M9NhX3UHpAaciwkO Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.6 (FreeBSD) Comment: For info see http://www.gnupg.org iD8DBQE8jGn+Wry0BWjoQKURAnLeAKDF7KGy+tlujf9huPQoFbduAWCGwgCfUUU2 FLtK7gIlm1pewFhqkROIseI= =Gglu -----END PGP SIGNATURE----- --M9NhX3UHpAaciwkO-- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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