Difference between revisions of "Iozone"

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====64k Blocks====
 
====64k Blocks====
 
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        Iozone: Performance Test of File I/O
 
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                Version $Revision: 3.279 $
 
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                Compiled for 32 bit mode.
 
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                Build: linux
 
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        Contributors:William Norcott, Don Capps, Isom Crawford, Kirby Collins
 
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                    Al Slater, Scott Rhine, Mike Wisner, Ken Goss
 
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                    Steve Landherr, Brad Smith, Mark Kelly, Dr. Alain CYR,
 
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                    Randy Dunlap, Mark Montague, Dan Million,
 
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                    Jean-Marc Zucconi, Jeff Blomberg, Benny Halevy,
 
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                    Erik Habbinga, Kris Strecker, Walter Wong.
 
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        Run began: Mon Apr  9 10:23:36 2007
 
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        File size set to 1048576 KB
 
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        Record Size 64 KB
 
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        No retest option selected
 
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        Command line used: iozone -s 1024m -r 64k -i 0 -i 1 -i 2 -+n -t 1
 
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        Output is in Kbytes/sec
 
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        Time Resolution = 0.000001 seconds.
 
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        Processor cache size set to 1024 Kbytes.
 
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        Processor cache line size set to 32 bytes.
 
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        File stride size set to 17 * record size.
 
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        Throughput test with 1 process
 
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        Each process writes a 1048576 Kbyte file in 64 Kbyte records
 
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         Children see throughput for  1 initial writers  =  49564.20 KB/sec
 
         Children see throughput for  1 initial writers  =  49564.20 KB/sec
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        Parent sees throughput for  1 initial writers  =  45431.54 KB/sec
 
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        Min throughput per process                      =  49564.20 KB/sec
 
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        Max throughput per process                      =  49564.20 KB/sec
 
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        Avg throughput per process                      =  49564.20 KB/sec
 
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        Min xfer                                        = 1048576.00 KB
 
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         Children see throughput for  1 readers          =  59590.32 KB/sec
 
         Children see throughput for  1 readers          =  59590.32 KB/sec
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        Parent sees throughput for  1 readers          =  59577.54 KB/sec
 
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        Min throughput per process                      =  59590.32 KB/sec
 
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        Max throughput per process                      =  59590.32 KB/sec
 
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        Avg throughput per process                      =  59590.32 KB/sec
 
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        Min xfer                                        = 1048576.00 KB
 
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         Children see throughput for 1 random readers    =    8309.17 KB/sec
 
         Children see throughput for 1 random readers    =    8309.17 KB/sec
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        Parent sees throughput for 1 random readers    =    8309.16 KB/sec
 
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        Min throughput per process                      =    8309.17 KB/sec
 
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        Max throughput per process                      =    8309.17 KB/sec
 
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        Avg throughput per process                      =    8309.17 KB/sec
 
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        Min xfer                                        = 1048576.00 KB
 
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         Children see throughput for 1 random writers    =  22801.88 KB/sec
 
         Children see throughput for 1 random writers    =  22801.88 KB/sec
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        Parent sees throughput for 1 random writers    =  20238.00 KB/sec
 
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        Min throughput per process                      =  22801.88 KB/sec
 
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        Max throughput per process                      =  22801.88 KB/sec
 
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        Avg throughput per process                      =  22801.88 KB/sec
 
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        Min xfer                                        = 1048576.00 KB
 
 
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Revision as of 20:43, 9 April 2007

The standard command I use is as follows:

iozone -s 1024m -r 32k -i 0 -i 1 -i 2 -+n -t 1

Western Digital

WDC WD1600JD-75H

64k Blocks

        Children see throughput for  1 initial writers  =   49564.20 KB/sec
        Children see throughput for  1 readers          =   59590.32 KB/sec
        Children see throughput for 1 random readers    =    8309.17 KB/sec
        Children see throughput for 1 random writers    =   22801.88 KB/sec
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