Date: Mon, 17 Mar 2003 20:22:43 +1100 From: Peter Jeremy <peterjeremy@optushome.com.au> To: The Hermit Hacker <scrappy@hub.org> Cc: freebsd-stable@FreeBSD.ORG Subject: Re: Server feels sluggish ... Message-ID: <20030317092242.GD1200@cirb503493.alcatel.com.au> In-Reply-To: <20030316022218.V65381@localhost> References: <20030316022218.V65381@localhost>
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On Sun, Mar 16, 2003 at 02:35:30AM -0400, The Hermit Hacker wrote: >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 using a VTY console, local X or a network login? Are the filesystems local or NFS mounted (I presume local). If you're using a network login and/or NFS, it could be a network problem. I presume you've checked that aacd0 doesn't have a dead disk (which would make disk I/O very slow). Does the system have ECC and if so is there a hard correctable error that is generating lots of additional RAM traffic? Have you accidently disabled one or both caches? You could try something like lmbench. As a collection of microbenchmarks, it might narrow down the problem. If you don't find anything else, it might be worthwhile pulling RAM and/or one of the CPUs and seeing if you can make the problem go away. Peter To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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