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Date: Sun, 26 Jan 1997 07:55:00 +0100 (MET)
From: Martin Jangowski <bsd@birdland.rhein-neckar.de>
To: freebsd-questions@freebsd.org
Subject: newfs options for newsspool?
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Hi!

One of my news machines I am running (P133, 64M RAM, NCR, 2*4 GB
Barracuda, FBSD 2.1.6.1) has a single Barrauda as a newsspool. I set it up
using "newfs -b 4096 -f 512 -i 2048" in one 4GB partition, to minimize
losses due to fragmentation.

It worked nicely for some time. I received about 100-120k artikles per
day, and everything was fine. Expire took about 5-8h, no prob there.
Recently (and without provocation), expire takes 36-48h, the drive is
slooooooow (bonnie showed throughputs in the 500-800k/s range, machine
in singleuser state), and I have about 1 GB newsbatches in the backlog.
The other disk shows nice 4-6M/s... The only difference I'm aware of is
the rising volume of the feed, it's around 160-180k artikels a day now,
and I had to lower my holding times.

Is it possible that the small block size is the culprit? I'm just copying
the newsspool to a new barracuda (runs for 8h now, about half done...)
with 8k blocksize. I did a search for bad blocks on the news disk, but
didn't find any.

Any ideas?

Martin

  

| Martin Jangowski              E-Mail: maja@birdland.rhein-neckar.de |
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