Date: Wed, 12 Nov 1997 20:33:48 -0800 (PST) From: Simon Shapiro <Shimon@i-connect.net> To: kingson@excite.com Cc: freebsd-current@FreeBSD.ORG Subject: RE: cp is slow... Message-ID: <XFMail.971112203348.Shimon@i-Connect.Net> In-Reply-To: <346A081E.DBC2798E@excite.com>
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Hi Kingson Gunawan; On 12-Nov-97 you wrote: > I noticed that the cp (copy) command is extremely slow on my system > (-current). On average 'cp' copy rate is somewhere around 100kB/sec, > while when I tried 'dd' (with bs=64k) the rate jumped to around > 2-3MB/sec. Even at this rate, it is nowhere close to the perfomance I'd > expect from the Fast UW SCSI system. The test file size is 100MB. The > copy is done using both 2 drives and 1 drive. > Is this to be expected? Dunno (but could guess :-) about cp, but copying with dd adds up to 4-6MB/Sec, on a single bus which is typical. --- If Microsoft Built Cars: Every time they repainted the lines on the road, you'd have to buy a new car. Sincerely Yours, Simon Shapiro Atlas Telecom Senior Architect 14355 SW Allen Blvd., Suite 130 Beaverton OR 97005 Shimon@i-Connect.Net Voice: 503.799.2313
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