Date: Sat, 10 Jun 2006 23:51:33 -0600 From: Chris Jones <cdjones-freebsd-hackers@novusordo.net> To: freebsd-hackers@freebsd.org Subject: Jail-Aware Scheduling Message-ID: <1A2863A3-21D6-4F38-AB98-BAB605507095@novusordo.net>
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Hi, folks --- as some of you might know, FreeBSD has a Summer of Code project to bring resource limits to jails, and one part of that is to permit an administrator to put limits on a jail's CPU usage. That's where I come in: I'm the guy doing the project, and I've been spending the last two weeks coming up to speed on scheduling and the like. What I'd like from freebsd-hackers is the following: - are there any good references on scheduling that you know of which I should read? I've already got Design & Implementation of FreeBSD and the Petrou / Milford / Gibson and Waldspurger / Weihl papers on lottery scheduling. - what're your thoughts on making the existing scheduler jail- aware as opposed to writing a sort of 'meta-scheduler' that would schedule between jails, and then delegate to a scheduler per jail (which could be very similar, if not identical, to the existing scheduler)? I've got some very preliminary thoughts on this, but I'd like to hear what you've got to say, as I'm aware that this is rather ... complex. Thanks, Chris
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