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To: Bruce Evans <bde@zeta.org.au>
cc: hackers@FreeBSD.org
Subject: Re: Why IDE is bad 
In-reply-to: Your message of "Wed, 22 Mar 1995 20:05:58 +1000."
             <199503221005.UAA09696@godzilla.zeta.org.au> 
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Date: Wed, 22 Mar 1995 03:29:14 +0000
From: Amancio Hasty <hasty@star-gate.com>
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>In practice, the FreeBSD-current 486DX2/66 VLB-Buslogic Quantum-XP34301
>combination spends about 0.01% of its time transferring at >5MB/sec.
>It goes fast for iozone but very slowly for real files.  E.g.,
>`cp -pR /usr/src/sys /usr/src/sys~' takes 85 seconds to copy
>2 * 12475K (293K/sec).  Any IDE drive can compete with this transfer
>rate.

Now why during  a normal transfer is scsi so slow?
Is it because of the updates to the inodes?

Amancio