From owner-freebsd-current@FreeBSD.ORG Thu Oct 4 19:34:49 2007 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id B4CD016A41A for ; Thu, 4 Oct 2007 19:34:49 +0000 (UTC) (envelope-from aryeh.friedman@gmail.com) Received: from py-out-1112.google.com (py-out-1112.google.com [64.233.166.176]) by mx1.freebsd.org (Postfix) with ESMTP id 7611213C4B7 for ; Thu, 4 Oct 2007 19:34:49 +0000 (UTC) (envelope-from aryeh.friedman@gmail.com) Received: by py-out-1112.google.com with SMTP id u77so567036pyb for ; Thu, 04 Oct 2007 12:34:48 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=beta; h=domainkey-signature:received:received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; bh=Nxp2Fw99UcryVtBLCFS/6rPgj3KIM5S1/CO2DqQgKp8=; b=WGlMxTuhOaPND+7uyXUmal7zS0IROTzna7zL5/Uw4DpnVzdma+T6USERHFBYq2Bm5T9LNfu4bLiceskAI9mdexOSioe6Eps/0Jd1R1H7Dha3aFK3r6dvpxOA840x8PwuzFKYV6bDHhH+6deIqBD2i7m1Hv9T2sQJXXZOjg3si+8= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=lgfgxPtl5xALjPO43tOJNeYLBT30eH2S2p8EDaSSyWxHBmTW2pwkdMDSXqccQANNXD5lJ5ER760/A4kDcDJwv28iECJHAUPYnCaBE3rX+QaZQmgeh3TpE6NRcCnbm1v0+t1RHaJkM4iUiGa8Wz3jvRMIFlDZU2x00SeDMvU591c= Received: by 10.65.23.7 with SMTP id a7mr11771134qbj.1191526488260; Thu, 04 Oct 2007 12:34:48 -0700 (PDT) Received: by 10.65.105.2 with HTTP; Thu, 4 Oct 2007 12:34:48 -0700 (PDT) Message-ID: Date: Thu, 4 Oct 2007 19:34:48 +0000 From: "Aryeh Friedman" To: "Artem Kuchin" In-Reply-To: <009a01c806bc$5c7021d0$0c00a8c0@Artem> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <009a01c806bc$5c7021d0$0c00a8c0@Artem> Cc: freebsd-current@freebsd.org Subject: Re: Scheduler selection for web hosting X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 04 Oct 2007 19:34:49 -0000 On 10/4/07, Artem Kuchin 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.