Date: Fri, 19 Nov 2010 16:39:52 -0600 From: Dan Nelson <dnelson@allantgroup.com> To: Alexander Leidinger <Alexander@Leidinger.net> Cc: Andriy@freebsd.org, FreeBSD@freebsd.org, Stable <freebsd-stable@freebsd.org>, "O. Hartmann" <ohartman@zedat.fu-berlin.de>, "Matthew D. Fuller" <fullermd@over-yonder.net>, Current <freebsd-current@freebsd.org>, Gapon <avg@freebsd.org>, Alexander Best <arundel@freebsd.org>, freebsd-performance@freebsd.org, Daniel Nebdal <dnebdal@gmail.com> Subject: Re: TTY task group scheduling Message-ID: <20101119223952.GK57869@dan.emsphone.com> In-Reply-To: <20101119120859.59361egrovtna9q8@webmail.leidinger.net> References: <4CE52177.3020306@freebsd.org> <20101118182324.GA36312@freebsd.org> <20101118182852.GR63683@over-yonder.net> <20101118185635.GA43706@freebsd.org> <20101118170623.7f9c14f3@kan.dnsalias.net> <AANLkTik6pnd-JCjkGZv3Dr7SjfwAgyqM=J8FPotM2-BD@mail.gmail.com> <20101118233731.GA10392@freebsd.org> <4CE5BA37.20604@freebsd.org> <20101119001710.GA14641@freebsd.org> <20101119120859.59361egrovtna9q8@webmail.leidinger.net>
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In the last episode (Nov 19), Alexander Leidinger said: > Quoting Alexander Best <arundel@freebsd.org> (from Fri, 19 Nov 2010 00:17:10 +0000): > > 17:51 @ Genesys : Luigi Rizzo had a plugabble scheduler back in 4.* or thereabouts > > 17:51 @ Genesys : you could kldload new ones and switch to them on the fly > > 17:52 @ arundel : wow. that sounds cool. too bad it didn't make it > > into src tree. by now it's probably outdated and needs to be reworked quite a bit. > > **** > > > > does anybody know something about this? > > I'm aware of the I/O scheduling code (which is now available at least > in -current), but I do not remember CPU scheduling code from Luigi. > Are you sure Genesys didn't mix up something by accident? I am rarely mixed up :) A quick search didn't bring up a direct reference, but here's a mention of it from Luigi: http://lists.freebsd.org/pipermail/freebsd-hackers/2004-November/008891.html -- Dan Nelson dnelson@allantgroup.com
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