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- From: jayl@bit.UUCP (Jay Lessert)
- Newsgroups: comp.sys.sun.admin
- Subject: Re: Sun 690MP performance problems
- Message-ID: <415@bit.UUCP>
- Date: 31 Aug 92 17:26:00 GMT
- Article-I.D.: bit.415
- References: <2A9FA7FE.2305@orion.oac.uci.edu>
- Reply-To: jayl@bit.UUCP (Jay Lessert)
- Organization: BIT, Portland, OR
- Lines: 31
-
- In article <2A9FA7FE.2305@orion.oac.uci.edu> iglesias@draco.acs.uci.edu (Mike Iglesias) writes:
- >Is anyone else having problems like these with their 690MP? Sun has made
- >some attempts to look into the problem, but all we've heard is that
- >"the system is performing as we said it would". We're using ps, vmstat,
- >iostat, top, etc trying to find what's going on; does anyone have any
- >suggestions on what else we could use to find where the bottlenecks are?
-
- I see no reason to doubt your Sun contacts when they say "the system is
- performing as we said it would". Sun has been pretty forthright about
- the capabilities of their asymmetric MP kernel (in their written
- statements, at least) and it *does* sound like you're simply I/O-kernel
- bound in your current application mix.
-
- In the real world, I guess it *is* pretty unrealistic to expect your Sun
- salesman to advise you to (1) buy a Solbourne or (2) hang to your
- Sequent for another year or two, but I suspect you'd be *much* happier
- if you had done one or the other of those...
-
- Unless you're willing to work something along those lines, all you can
- do is hang on and wait for SunOS 5.1 (or whatever revision SunOS is up
- to in Solaris 2.1).
-
- I know it's a tough lesson to learn, but on *any* major computer purchase,
- you gotta benchmark, benchmark, benchmark, then write performance standards
- into the acceptance criteria in the purchase order.
-
-
- --
- Jay Lessert {decwrl,cse.ogi.edu,sun,verdix}!bit!jayl
- Bipolar Integrated Technology, Inc.
- 503-629-5490 (fax)503-690-1498
-