Date: Tue, 06 Sep 2005 23:47:37 +1000 From: Norberto Meijome <freebsd@meijome.net> To: Kris Kennaway <kris@obsecurity.org> Cc: "O. Hartmann" <ohartman@mail.uni-mainz.de>, freebsd-amd64@freebsd.org Subject: Re: Which SCHED_ for DB server Message-ID: <431D9DF9.3000706@meijome.net> In-Reply-To: <20050906082229.GA27104@xor.obsecurity.org> References: <4316A5BC.1000405@meijome.net> <b41c7552050901015317d5942e@mail.gmail.com> <20050906000016.GA91835@xor.obsecurity.org> <431D4944.9020907@mail.uni-mainz.de> <20050906082229.GA27104@xor.obsecurity.org>
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Kris Kennaway wrote: >> >>Interesting. >>An, by the way, what are the benefits of ULE at this moment? Is it still >>a more experimental scheduler for the far future on SMP based machines >>or do we have benefits in UP/SMP? > > > It was supposed to provide higher performance (and did for a while, > modulo panics), but at the moment it still needs work. > > Kris Thanks everyone for the comments. BTW, this is only a minimal SMP system (2 way Opteron), so not sure whether it'd make much difference anyway. using 4BSD for now until I have some real-world apps running in order to test. btw, any chance of other schedulers being added to fbsd, like the staircase sched found in linux , or maybe others? (not offering as I can't code @ that level, just curious) thanks again, beto
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