From owner-freebsd-questions Sat Sep 2 11:13:44 2000 Delivered-To: freebsd-questions@freebsd.org Received: from scientia.demon.co.uk (scientia.demon.co.uk [212.228.14.13]) by hub.freebsd.org (Postfix) with ESMTP id CB1C137B43E for ; Sat, 2 Sep 2000 11:13:38 -0700 (PDT) Received: from strontium.scientia.demon.co.uk ([192.168.91.36] ident=root) by scientia.demon.co.uk with esmtp (Exim 3.16 #1) id 13VH0h-000BqM-00; Sat, 02 Sep 2000 18:23:19 +0100 Received: (from ben@localhost) by strontium.scientia.demon.co.uk (8.9.3/8.9.3) id SAA79230; Sat, 2 Sep 2000 18:23:19 +0100 (BST) (envelope-from ben) Date: Sat, 2 Sep 2000 18:23:19 +0100 From: Ben Smithurst To: Elliot Finley Cc: freebsd-questions@FreeBSD.org Subject: Re: FreeBSD 4.1-Stable and Thundering Herds Message-ID: <20000902182319.N72445@strontium.scientia.demon.co.uk> References: <39b1992e.183887987@mail.afnetinc.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2i In-Reply-To: <39b1992e.183887987@mail.afnetinc.com> Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Elliot Finley wrote: > I was wondering if the "Thundering Herd" > (http://www.citi.umich.edu/projects/linux-scalability/reports/accept.html) > problem exists in FreeBSD 4.1-Stable? I don't *think* it does, but I'm not a kernel guru. I think what FreeBSD does is just to wake up one process blocked in accept for the socket which a connection arrives on, rather than all of them. But I'm not 100% sure. You might like to ask freebsd-hackers if you don't get a more definitive answer here since that list is for more technical things like this. -- Ben Smithurst / ben@FreeBSD.org / PGP: 0x99392F7D To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message