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Re: Mac OS X File IO Performance Issue?

Subject: Re: Mac OS X File IO Performance Issue?
From: Shawn Erickson <email@hidden>
Date: Fri, 29 Jul 2005 08:44:36 -0700
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On Jul 29, 2005, at 8:08 AM, Brendon McLean wrote:

Sample program attached. Please berate me if there's anything wrong with it.

You are using a different scaling factor for the Write log statement then the Read log statement. If I make both of them use the same scaling factor as the one used for read I get the following on my G5.

Write: 0.855489

I believe that translates into 58.5 MB/s write speed and 273.42 MB/s reads if I read your test code correctly. The write speed is about the maximum for my drive and the read is coming from file cache most likely.

-Shawn

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References:
	>RE: Mac OS X File IO Performance Issue? (From: "Rick Genter" <email@hidden>)
	>Re: Mac OS X File IO Performance Issue? (From: Brendon McLean <email@hidden>)

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