Date: Wed, 10 Mar 2004 20:42:29 -0800 From: Kris Kennaway <kris@obsecurity.org> To: Conrad Sabatier <conrads@cox.net> Cc: freebsd-current@freebsd.org Subject: Re: I like SCHED_4BSD Message-ID: <20040311044229.GA11614@xor.obsecurity.org> In-Reply-To: <XFMail.20040310213645.conrads@cox.net> References: <XFMail.20040310213645.conrads@cox.net>
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--BOKacYhQ+x31HxR3 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed, Mar 10, 2004 at 09:36:45PM -0600, Conrad Sabatier wrote: > I just decided to revert to SCHED_4BSD for the time being. Why? >=20 > o Better interactivity -- No mouse jerkiness, no sluggish screen updates = when > switching between virtual desktops, etc. >=20 > o Better scheduling! I'm serious here. Watching top under SCHED_ULE, I'm > seeing 10, 15, 20 seconds go by where ALL processes are sleeping.=20 > Processes seem to be spending inordinate amounts of time in the "kserel" > state. This, of course, doesn't happen with SCHED_4BSD. That this observation may well be bogus, because you're trying to measure the scheduler using a tool that is itself run by the scheduler, so the process stats you see may not be representative of what is really happening on your system. Kris --BOKacYhQ+x31HxR3 Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (FreeBSD) iD8DBQFAT+41Wry0BWjoQKURAhC7AKCqZFWspckzBnTbkf2lMw5MV0IQBwCdG3Q9 CycgZHxMefhQyTxJvn9eHoA= =NyGq -----END PGP SIGNATURE----- --BOKacYhQ+x31HxR3--
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