thats a lot of info... the write value seems higher than the read?? that seems a bit odd, i'm not sure how to import it into excel either, i could probably could the number of times i've opened that program on my fingers... I *think* i have it on my work pc, put it that way... still does this look about right? maybe it's not getting what windows is reporting and just faking it
C:\Program Files (x86)\Benchmarks\Iozone 3.311>iozone -Rab test.txt -i 0 -i 1 -+u -f p:\test\test -q 64k -n 32M -g 1G -z
Iozone: Performance Test of File I/O
Version $Revision: 3.311 $
Compiled for 32 bit mode.
Build: Windows
Contributors:William Norcott, Don Capps, Isom Crawford, Kirby Collins
Al Slater, Scott Rhine, Mike Wisner, Ken Goss
Steve Landherr, Brad Smith, Mark Kelly, Dr. Alain CYR,
Randy Dunlap, Mark Montague, Dan Million, Gavin Brebner,
Jean-Marc Zucconi, Jeff Blomberg, Benny Halevy,
Erik Habbinga, Kris Strecker, Walter Wong, Joshua Root.
Run began: Sun Oct 12 19:35:31 2008
Excel chart generation enabled
Auto Mode
CPU utilization Resolution = -0.000 seconds.
CPU utilization Excel chart enabled
Using Maximum Record Size 64 KB
Using minimum file size of 32768 kilobytes.
Using maximum file size of 1048576 kilobytes.
Cross over of record size disabled.
Command line used: iozone -Rab test.txt -i 0 -i 1 -+u -f p:\test\test -q 64k -n 32M -g 1G -z
Output is in Kbytes/sec
Time Resolution = 0.000001 seconds.
Processor cache size set to 1024 Kbytes.
Processor cache line size set to 32 bytes.
File stride size set to 17 * record size.
random random bkwd record stride
KB reclen write rewrite read reread read write read rewrite read fwrite frewrite fread freread
32768 4 45671 170272 39750 39557
32768 8 77990 298255 39647 39647
32768 16 144939 484311 47232 47123
32768 32 273550 707896 59000 58960
32768 64 440824 905724 46498 46787
65536 4 44867 161692 39584 39599
65536 8 78177 291308 39451 39436
65536 16 155507 476327 46479 44894
65536 32 275871 700072 53217 52477
65536 64 72952 900634 50307 51805
131072 4 15329 28081 39590 39583
131072 8 77707 285670 32060 36802
131072 16 138104 456731 46816 46989
131072 32 267459 685649 56509 56721
131072 64 451515 892407 47767 49628
262144 4 15932 45897 39462 39530
262144 8 19804 51364 39216 34232
262144 16 157558 442318 48142 49835
262144 32 267730 640962 53196 52050
262144 64 426999 877829 49759 51978
524288 4 15776 72604 36301 39434
524288 8 21066 274006 38307 37191
524288 16 29489 29197 50513 46909
524288 32 309844 652728 60183 54981
524288 64 449095 51294 48711 50345
1048576 4 15127 33456 37699 37678
1048576 8 19502 36567 37717 37641
1048576 16 22891 139268 48737 48586
1048576 32 22551 96050 59250 59895
1048576 64 522943 793339 49445 49751
iozone test complete.
Excel output is below:
"Writer report"
"4" "8" "16" "32" "64"
"32768" 45671 77990 144939 273550 440824
"65536" 44867 78177 155507 275871 72952
"131072" 15329 77707 138104 267459 451515
"262144" 15932 19804 157558 267730 426999
"524288" 15776 21066 29489 309844 449095
"1048576" 15127 19502 22891 22551 522943
"Re-writer report"
"4" "8" "16" "32" "64"
"32768" 170272 298255 484311 707896 905724
"65536" 161692 291308 476327 700072 900634
"131072" 28081 285670 456731 685649 892407
"262144" 45897 51364 442318 640962 877829
"524288" 72604 274006 29197 652728 51294
"1048576" 33456 36567 139268 96050 793339
"Reader report"
"4" "8" "16" "32" "64"
"32768" 39750 39647 47232 59000 46498
"65536" 39584 39451 46479 53217 50307
"131072" 39590 32060 46816 56509 47767
"262144" 39462 39216 48142 53196 49759
"524288" 36301 38307 50513 60183 48711
"1048576" 37699 37717 48737 59250 49445
"Re-Reader report"
"4" "8" "16" "32" "64"
"32768" 39557 39647 47123 58960 46787
"65536" 39599 39436 44894 52477 51805
"131072" 39583 36802 46989 56721 49628
"262144" 39530 34232 49835 52050 51978
"524288" 39434 37191 46909 54981 50345
"1048576" 37678 37641 48586 59895 49751
"Writer CPU utilization report (Zero values should be ignored)"
"4" "8" "16" "32" "64"
"32768" 10.85 6.02 7.08 2.61 2.33
"65536" 9.74 6.07 4.62 3.07 2.90
"131072" 11.54 7.37 5.66 3.90 2.93
"262144" 10.74 6.50 4.76 2.88 3.34
"524288" 11.35 7.22 4.82 3.85 2.59
"1048576" 10.87 7.79 5.83 3.91 2.64
"Re-writer CPU utilization report (Zero values should be ignored)"
"4" "8" "16" "32" "64"
"32768" 9.33 9.79 7.42 3.76 3.86
"65536" 18.66 12.54 6.05 4.38 3.03
"131072" 15.64 10.20 6.48 5.01 3.31
"262144" 15.73 7.40 6.17 4.11 3.23
"524288" 17.78 10.59 5.73 4.51 3.55
"1048576" 15.35 9.61 6.11 4.00 3.50
"Reader CPU utilization report (Zero values should be ignored)"
"4" "8" "16" "32" "64"
"32768" 31.95 16.82 15.59 19.60 17.59
"65536" 27.24 14.09 12.13 7.51 5.96
"131072" 28.16 15.58 13.87 8.02 3.95
"262144" 24.58 14.90 12.86 9.72 3.25
"524288" 24.24 14.55 11.84 10.71 5.92
"1048576" 22.77 14.22 12.80 10.10 6.74
"Re-Reader CPU utilization report (Zero values should be ignored)"
"4" "8" "16" "32" "64"
"32768" 33.58 13.10 13.41 2.67 2.12
"65536" 28.15 13.06 8.45 7.48 7.39
"131072" 24.88 19.25 11.14 12.79 6.48
"262144" 22.52 16.45 11.21 10.18 6.48
"524288" 24.69 14.79 12.37 7.98 7.16
"1048576" 24.10 13.85 10.30 8.43 6.20
C:\Program Files (x86)\Benchmarks\Iozone 3.311>