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- From: peter@merlin.acadiau.ca (Peter Steele)
- Subject: Re: Sun 690MP performance problems
- Message-ID: <peter.715432191@merlin>
- Sender: news@dragon.acadiau.ca
- Nntp-Posting-Host: merlin
- Organization: Acadia University
- References: <2A9FA7FE.2305@orion.oac.uci.edu> <2436@tymix.Tymnet.COM>
- Date: Wed, 2 Sep 1992 11:09:51 GMT
- Lines: 20
-
- >I have seen problems similar to this on a Sparcstation 1+ which is our
- >campus mail gateway and news server. This machine gets very little
- >interactive use, and the mail load is fairly light, so most of what it does
- >is news processing and nntp. It has two SCSI disks. The symptoms sound
- >remarkably similar to what you've reported, but since our machine isn't
- >used as a timesharing system I haven't worried about it too much.
-
- >It has even happened even when I'm the only user logged in, but only when
- >nntp is receiving news from our main feed. I have speculated that it might
- >be due to contention for the SCSI bus or the one drive which unfortunately
- >has root, some swap, usr, and /var/spool/news on it. It also seems to be
- >connected to file lookups, rather than actual reads/writes.
-
- We has the same symptoms when our mail/news server was an SLC with 8M
- of memory. Now we have a 670 (dual processor, pre-super-sparc) and
- there seems to be little impact on interactive users, and our news
- feed comes in every 20 minutes.
- --
- Peter Steele Unix Services Manager peter.steele@acadiau.ca
- Acadia Univ., Wolfville, NS, Canada B0P 1X0 902-542-2201 Fax: 902-542-4364
-