Date: 28 Jan 2002 12:01:25 +0000 From: Rolf Neugebauer <neugebar@dcs.gla.ac.uk> To: Lars Eggert <larse@ISI.EDU> Cc: hackers@freebsd.org Subject: Re: priority disk scheduling? Message-ID: <ysq3d0qofai.fsf@therese.dcs.gla.ac.uk> In-Reply-To: <3C51C184.1020706@isi.edu> References: <3C51C184.1020706@isi.edu>
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Lars Eggert <larse@ISI.EDU> writes: > Hi, > > does anyone know if a simple priority disk scheduler exists for a > recent (4.X) FreeBSD? I don't need anything fancy, basically the POSIX > rtprio equivalent for disks. > > The Eclipse people (at Bell) have something like that, but it's based > on an older kernel, and I'd rather use something more recent before > looking into porting their stuff. You might want to try anticipatory scheduling from Rice. It is for 4.3-RELEASE and IIRC includes some proportional share algorithms. More info and source code available for non-commercial use: http://www.cs.rice.edu/~ssiyer/r/antsched/ Rolf To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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