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Date:      Sun, 9 Mar 1997 02:11:31 -0500 (EST)
From:      Brian Tao <taob@risc.org>
To:        "matthew c. mead" <mmead@goof.com>
Cc:        isp@FreeBSD.ORG, hackers@FreeBSD.ORG
Subject:   Re: freebsd as a news server?
Message-ID:  <Pine.BSF.3.95.970309015620.22711B-100000@alpha.risc.org>
In-Reply-To: <199703090118.UAA10981@goof.com>

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On Sat, 8 Mar 1997, matthew c. mead wrote:
>
> I've recently configured a 200Mhz PPro on a TYAN motherboard with
> 128M ram and 45G of ultra wide scsi drives (5 9G drives total)
> hanging off an Adaptec 3940UW.

    Your disks are probably the bottleneck here, and definitely not
the CPU.  I have setup two news servers whose daily expires would
consistently take just over an hour.  One had 9 2GB drives split
across three NCR53c810 controllers and the other had 12 2GB wide
drives split across two Adaptec 2940UW controllers.  The former was a
P133 and the latter a PPro200, both with 128MB of RAM.

    My news.daily script would mount -u the spool filesystems async
just before the fastrm phase, then sync the disks and remount them
synchronously.  I was seeing upwards of 1000 unlinks per second on the
async filesystem, or 40-50 times faster than a sync filesystem, IIRC.
--
Brian Tao (BT300, taob@risc.org)
"Though this be madness, yet there is method in't"




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