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Path: sserve!manuel!munnari.oz.au!uunet!mcsun!sun4nl!philapd!apdnm!atperf.idca.tds.philips.nl!pb From: pb@idca.tds.philips.nl (Peter Brouwer) Newsgroups: comp.unix.bsd Subject: Re: ESDI disk performance under 386BSD Message-ID: <pb.714055956@atperf.idca.tds.philips.nl> Date: 17 Aug 92 12:52:36 GMT References: <1992Aug14.170148.22228@dsuvax.dsu.edu> <1992Aug15.064435.13623@fcom.cc.utah.edu> Sender: news@idca.tds.philips.nl Reply-To: pb@idca.tds.philips.nl (Peter Brouwer) Organization: Digital Equipment Enterprise B.V.,Apeldoorn,The Netherlands. Lines: 22 X-Disclaimer: This opinion is mine alone In <1992Aug15.064435.13623@fcom.cc.utah.edu> terry@cs.weber.edu (A Wizard of Earth C) writes: >In article <1992Aug14.170148.22228@dsuvax.dsu.edu> ghelmer@dsuvax.dsu.edu (Guy Helmer) writes: >[ ... my WD1007V-SE2 controller an my Wren VI seem real slow ... ] >There are 2 delay(100)'s in the disk driver to make it slower. Dunno if this >is what's biting you. I suspect you are missing the interleave. With that >controller, make sure the low level format (not possible with 386BSD -- use >a DOS tool) is 1:1. Also you should experiment with the gap value in mkfs. This greatly influence your disk performance. -- # Peter Brouwer, | Digital Equipment Enterprise , # # NET : pb@idca.tds.philips.nl | Integration Industry Standard Systems, # # PHONE:ext [+31] [-0]55 432992,| Dept Systems Enginering, Bld V1/B4 # # FAX :ext [+31] [-0]55 432070 | P.O.Box 245,7300AE Apeldoorn,The Netherlands#