Date: Sun, 16 Mar 2003 06:53:39 GMT From: "Matt Anderson" <emattman@cascadeaccess.com> To: freebsd-stable@FreeBSD.ORG Cc: freebsd-stable@FreeBSD.ORG Subject: Re: Server feels sluggish ... Message-ID: <20030316145545.D4C45208750@inet.cascadeaccess.com>
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>On 16 Mar, The Hermit Hacker punched keys in this particular order: >> >> Okay, this has to be the worst report of all time, but one of my ligher >> loaded servers feels more sluggish then the heavy loaded one ... starting >> commands seems to 'hang' for a bit and then go, changing folders in mail >> takes forever, etc ... yet there is about a 1/4 the processes running on >> this system ... so this is more a 'is there something I shuld be looking >> at' kinda email, since I can't pinpoint anything as being wrong, it just >> *feels* sluggish :( > >Are you working on it remotely? In that case you might be looking at >DNS timeouts if it doesn't "know" the machine you're connecting from. >IIRC, that's about 10s every time you connect to it. > >> The server itself is a Dual PIII 1.2Ghz on an Intel MB in an Intel SR2300 >> chassis ... Adaptec 2120S ZCR RAID Controller ... 4GB of RAM ... 6x36GB >> Seagate Cheetah drives in a RAID5 configuration ... Onboard Intel ethernet >> ... > >Maybe too much RAM? I know someone with a VIA C3 processor who put in >1G of RAM, and the machine became really slow (a memory throughput of >~6MB/s). It was much faster with 512MB RAM. > >I don't think PIII chipsets are known to suffer from likewise problems, >but you never know. >Your loaded server also has 4GB, does it have the same chipset? > >All this is probably just fine, but the things you can forget to >configure can be rather embarassing. ;) > >-- > >Alban Hertroys >- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - > If you can't see the forest through the trees, chop the trees > that are in the way and you will see that there is no forest. > > >To Unsubscribe: send mail to majordomo@FreeBSD.org >with "unsubscribe freebsd-stable" in the body of the message For what it's worth. I saw the same behaviour on some some servers I had built myself. The slowness happend when I took the RAM to 1G from 512M. These had IWILL motherboards and PIII processors. The wierd part, out of 3 machines, supposedly all identical, only two exhibited slowness when (and instability) when taken to 1G. Matt Anderson To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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