Date: Wed, 2 Apr 2003 09:58:55 +0300 From: Ruslan Ermilov <ru@FreeBSD.org> To: Bruce Evans <bde@zeta.org.au> Cc: "M. Warner Losh" <imp@bsdimp.com> Subject: Re: depend + all vs dependall Message-ID: <20030402065855.GA161@sunbay.com> In-Reply-To: <20030330150957.M13638@gamplex.bde.org> References: <20030329.163343.53040416.imp@bsdimp.com> <20030330150957.M13638@gamplex.bde.org>
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--LZvS9be/3tNcYl/X Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Sun, Mar 30, 2003 at 04:12:09PM +1000, Bruce Evans wrote: [...] > > time make buildworld -j 8 -s >=20 > Note that all benchmarks using -j are invalid because of nondeterministic > wait times of up to 100 msec for each job. This pessimizes makeworld -j 4 > times by about 20% on a non-dual Athlon XP1600, and can't do good things > for the variance. The pessimization is larger on faster machines of > course. This is fixed in NetBSD. FreeBSD only has the hackaround of > reducing the timeout from 500 msec to 100 msec. >=20 FreeBSD also provides disabled at the moment kqueue(2) based implementation of the above wait. Now that Jonathan is back, perhaps he could look into the issues if they still exist? Cheers, --=20 Ruslan Ermilov Sysadmin and DBA, ru@sunbay.com Sunbay Software AG, ru@FreeBSD.org FreeBSD committer, +380.652.512.251 Simferopol, Ukraine http://www.FreeBSD.org The Power To Serve http://www.oracle.com Enabling The Information Age --LZvS9be/3tNcYl/X Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.1 (FreeBSD) iD8DBQE+ioouUkv4P6juNwoRAr5WAKCAq2DAuabnCe2sTwcS+ic1nXI4IACeJ8Yc aZARHoQS3Z57lvLCnWWr+wQ= =B2l8 -----END PGP SIGNATURE----- --LZvS9be/3tNcYl/X--
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