Date: Wed, 16 Apr 2008 10:09:37 +0100 From: Tom Evans <tevans.uk@googlemail.com> To: Unga <unga888@yahoo.com> Cc: freebsd-stable@freebsd.org, freebsd@meijome.net Subject: Re: sched_ule performance on single CPU Message-ID: <1208336977.1940.8.camel@localhost> In-Reply-To: <994449.33832.qm@web57012.mail.re3.yahoo.com> References: <994449.33832.qm@web57012.mail.re3.yahoo.com>
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--=-Ptu8DcD6Kxe1c4sYbuUD Content-Type: text/plain Content-Transfer-Encoding: quoted-printable On Wed, 2008-04-16 at 00:20 -0700, Unga wrote: >=20 > Sorry for my late reply. >=20 > What I mentioned is a fact, that I always do. Yep, the > music listening is not affected at all when building > world on both 4BSD and ULE. >=20 > Please note my processor is 3Ghz, may be it can take > such a load.=20 >=20 > Second, I run the buildworld lessor priority than the > music player and the browser. >=20 > Third, have sufficient RAM so that it doesn't swap. >=20 > Unga >=20 Just my 2p worth. I run musicpd, streaming via icecast with 4-5 clients, on a not crazy fast 1.8 GHz Core Duo (*not* Core 2 Duo :), which is also a desktop system and running a number of development web servers in C++, python, ruby. I've only got a GB of RAM, so I am perennially swapping. With SCHED_4BSD, running a make world would result in the music stopping lots. With SCHED_ULE it never skips or pauses, and, with acceptable waits for processes to get swapped back in, the desktop remains very usable. I don't build world with a reduced priority either. ULE is a very, very good scheduler IMHO :) Now, if only I could stop Firefox leaking insane amounts of memory, I wouldn't even need a RAM upgrade :) Tom --=-Ptu8DcD6Kxe1c4sYbuUD Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.8 (FreeBSD) iEYEABECAAYFAkgFwk4ACgkQlcRvFfyds/dSQACdEOz5NIf1LtYn2bTfKIpAU0bn MDkAoIhTB7mgJB/WL8dXtKxr4dMjwhUy =P7+/ -----END PGP SIGNATURE----- --=-Ptu8DcD6Kxe1c4sYbuUD--
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