Date: Wed, 22 Mar 1995 03:29:14 +0000 From: Amancio Hasty <hasty@star-gate.com> To: Bruce Evans <bde@zeta.org.au> Cc: hackers@FreeBSD.org Subject: Re: Why IDE is bad Message-ID: <199503220329.DAA00351@star-gate.com> In-Reply-To: Your message of "Wed, 22 Mar 1995 20:05:58 %2B1000." <199503221005.UAA09696@godzilla.zeta.org.au>
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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
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