Date: Thu, 4 Oct 2007 19:34:48 +0000 From: "Aryeh Friedman" <aryeh.friedman@gmail.com> To: "Artem Kuchin" <matrix@itlegion.ru> Cc: freebsd-current@freebsd.org Subject: Re: Scheduler selection for web hosting Message-ID: <bef9a7920710041234i779891afp894941b571d63ed4@mail.gmail.com> In-Reply-To: <009a01c806bc$5c7021d0$0c00a8c0@Artem> References: <009a01c806bc$5c7021d0$0c00a8c0@Artem>
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On 10/4/07, Artem Kuchin <matrix@itlegion.ru> wrote: > Hello! > > I have read that in 7-Current there are two schedulers. > 4BSD - which, AFAIK, is a renamed new SMP scheduler, but i'm not sure > ULE According to the scheduler team the only reason why ULE is not the standard scheduler is it has poor performance on single processor machines. > > 7-current amd64 is actually seems to be VERY stable on hardware and > software we use, so, we want to move it to production servers and > want to get max perfomance from it for web hosting. > > As, as i know, scheduler is a very important thing when i comes to > perfomance in havy loaded really multitasking system. We are having > about 900 processes in about 20 jails. > > So, what is the difference between the two? Which seems to be better > for hosting? Is ULE bugfree and stable enogh for this? ULE no question given your config... also from here on out I think it is the only one under active development and a high experimental version was tested last night and likelly to be further refined that should really fly on such enviroments.
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