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Article View: comp.sys.amiga.tech
Article #10577

Re: 2090A speed

#10577
From: Donald A Kassebaum
Date: Tue, 13 Dec 1988 15:28
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	Ten cylinders is a small partition.  Running Diskperfa will
	fragment that pretty fast.  The test goes from smallest to
	largest block size leaving the partition fragrmented.  The
	2090 really shows its speed when it can use DMA to read/write
	multiple blocks to disk.  With 30k bytes records and a fresh
	clean partition, it can lay 17 block on a track in one operation
	with the Fast File System.  When the partition get fragmented,
	FFS can't find contiguous block, it is forced to do more operations.
	With 700k, you might be doing single block read/writes with will
	be about the smae speed as the old file system.

	Give your partitions some space (10 or 20 meg) and try again.

	Dak
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Message-ID: <8764@ut-emx.UUCP>
Path: arc1-ca.pugleaf.net!utzoo!attcan!uunet!super!udel!princeton!njin!rutgers!cs.utexas.edu!ut-emx!dak
References: <9472@gryphon.COM> <1154@esunix.UUCP>

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Path: arc1-ca.pugleaf.net!utzoo!attcan!uunet!super!udel!princeton!njin!rutgers!cs.utexas.edu!ut-emx!dak
From: dak@ut-emx.UUCP (Donald A Kassebaum)
Newsgroups: comp.sys.amiga.tech
Subject: Re: 2090A speed
Summary: But was your test fair?
Message-ID: <8764@ut-emx.UUCP>
Date: 13 Dec 88 15:28:31 GMT
References: <9472@gryphon.COM> <1154@esunix.UUCP>
Organization: The University of Texas at Austin, Austin, Texas
Lines: 15