Date: Sun, 16 Mar 2003 12:55:18 +0100 (CET) From: Alban Hertroys <dalroi@solfertje.student.utwente.nl> To: The Hermit Hacker <scrappy@hub.org> Cc: freebsd-stable@FreeBSD.ORG Subject: Re: Server feels sluggish ... Message-ID: <20030316120141.66F363BF@solfertje.student.utwente.nl> In-Reply-To: <20030316022218.V65381@localhost>
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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.
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