Date: Tue, 20 Mar 2001 10:48:45 -0800 (PST) From: Matt Dillon <dillon@earth.backplane.com> To: "Michael C . Wu" <keichii@iteration.net> Cc: Alfred Perlstein <bright@wintelcom.net>, grog@FreeBSD.ORG, fs@FreeBSD.ORG, hackers@FreeBSD.ORG Subject: Re: tuning a VERY heavily (30.0) loaded server Message-ID: <200103201848.f2KImj995560@earth.backplane.com> References: <20010320111144.A51924@peorth.iteration.net> <20010320092717.R29888@fw.wintelcom.net> <20010320113818.B52586@peorth.iteration.net> <200103201750.f2KHopk94248@earth.backplane.com> <20010320122245.E52586@peorth.iteration.net>
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:We have 'vmstat 5' available at http://zoo.ee.ntu.edu.tw/~keichii/ :Fresh hot vmstat 1 log at :http://zoo.ee.ntu.edu.tw/~keichii/vmstat_1.log : :-- :+-----------------------------------------------------------+ :| keichii@iteration.net | keichii@freebsd.org | Your vmstat output indicates: * That you have plenty of cpu * That you are not paging heavily (good!) Ah. Your kernel config is in that directory too. Cool. Looks about what I expected. The default VM_KMEM_SIZE_MAX is 200MB, I'm not sure why you are reducing it to 192MB (but it wouldn't make much of a different I guess). I usually don't increase 'maxusers' above 256 myself, but 512 should be fine. Everything else looks fine too. The iostat output sheds more light on the disk activity. It doesn't look all that bad. If your users are accessing a lot of different files it might be beneficial to mount the filesystems in question with the 'noatime' option. This coupled with softupdates should remove any need for MFS. -Matt To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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