Multi threaded random IO

Milind Dumbare milind at gslab.com
Fri Jul 17 04:28:14 CDT 2009


Any standard comparison between multi threaded random Write vs multi 
threaded random Read on XFS or any other filesystem?

I see multi threaded random Write faster than multi threaded random 
Read. Which is contradictory to standard "Reads faster that Writes" law.

My test setup is.
10MB record size, 2TB filesize, 8 threads.iozone

Any comments?

Thanks,
Milind




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