Date: Thu, 22 Aug 2002 01:38:13 +0400 From: "Andrei A. Dergatchev" <dergatchev@kapella.gpi.ru> To: FreeBSD-hackers@FreeBSD.ORG Subject: Re: Creating a sysctl? (mission impossible) Message-ID: <3D640845.3060700@kapella.gpi.ru> References: <20020820180222.927.qmail@exxodus.fedaykin.here> <20020822030842.GA22058@HAL9000.homeunix.com>
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>Thus spake Mario Sergio Fujikawa Ferreira <lioux@FreeBSD.ORG>: > >> I am trying to create one sysctl so that I can read information >>from a lottery scheduler that I am trying to write. >> The sysctl is very very simple. I add a lottery node under kern >>then add a member global_tickets under kern.lottery. Very simple stuff >>that is not working. >> > >FYI, lottery scheduling has already been implemented at least >twice for FreeBSD. For an example, see > > http://www.csua.berkeley.edu/computing/software/lottery-sched.html > >The code has not been maintained, > FYI, I wanted to have a look, but it appears that both a link to source code http://www-2.cs.cmu.edu/~dpetrou/code/freebsd_lottery_code.tar.gz and to accompanying paper http://www-2.cs.cmu.edu/~dpetrou/papers/freebsd_lottery_writeup98.ps do not work ... > apparently due to a lack of >interest, and it incurs a high scheduling overhead. Note that the KSE >work is likely to bring significant changes to scheduling in FreeBSD, >possibly causing you headaches later. You might also be interested in >Luigi's work on a PS scheduler; check the list archives. > Regards, Andrei To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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