hard disk performance

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#4448

From: James Sims
Date: Thu, 19 Jul 1990 19:22

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I have an A1000 w/ StarboardII + SCSI + Seagate ST296-N.
I formatted it without FFS, interleaved at 3. I use
Addbuffers = 40 in my startup. Using Diskperf
reports ~25K reads/sec when I mount it interleaved = 3
and ~35K reads/sec mounted interleaved = 0.

 Are these numbers reasonable?
 Should I re-format with interleave = 0? FFS? Both?
 How can I tell how many buffers I have already added
  to a device (I did another Addbuffers (50), and it
  **slowed down** Diskperf *quite* a bit???

 Can/should this be posted regularly (for other drives as well)?


thanks in advance,
jim

sims@starbase.mitre.org   or  sims@ai.mitre.org

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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!yale!think!linus!linus!mwunix.mitre.org!jsims
From: jsims@mwunix.mitre.org (James Sims)
Newsgroups: comp.sys.amiga.tech,comp.sys.amiga.hardware
Subject: hard disk performance
Message-ID: <113954@linus.mitre.org>
Date: 19 Jul 90 19:22:27 GMT
Sender: usenet@linus.mitre.org
Reply-To: jsims@mwunix.mitre.org.UUCP (James Sims)
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Organization: Mitre Corporation
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