From owner-freebsd-hackers Tue Mar 20 10:43: 5 2001 Delivered-To: freebsd-hackers@freebsd.org Received: from earth.backplane.com (earth.backplane.com [208.161.114.65]) by hub.freebsd.org (Postfix) with ESMTP id 20FA537B718; Tue, 20 Mar 2001 10:43:01 -0800 (PST) (envelope-from dillon@earth.backplane.com) Received: (from dillon@localhost) by earth.backplane.com (8.11.2/8.9.3) id f2KIFR594803; Tue, 20 Mar 2001 10:15:27 -0800 (PST) (envelope-from dillon) Date: Tue, 20 Mar 2001 10:15:27 -0800 (PST) From: Matt Dillon Message-Id: <200103201815.f2KIFR594803@earth.backplane.com> To: "Michael C . Wu" Cc: izero@ms26.hinet.net, cross@math.psu.edu, Alfred Perlstein , "Michael C . Wu" , grog@FreeBSD.ORG, fs@FreeBSD.ORG, hackers@FreeBSD.ORG Subject: Re: tuning a VERY heavily (30.0) loaded scerver References: <20010320111144.A51924@peorth.iteration.net> <20010320092717.R29888@fw.wintelcom.net> <20010320113818.B52586@peorth.iteration.net> <20010320120112.C52586@peorth.iteration.net> Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG :Another problem is that we have around 4000+ processes accessing :lots of SHM at the same time.. How big is 'lots'? If the shared memory segment is smallish, e.g. less then 64MB, you should be ok. If it is larger then you will have to do some kernel tuning to avoid running out of pmap entries. -Matt To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message