# time iozone -a -c -e -s 512m -q 4096 -y 64
Iozone: Performance Test of File I/O
Version $Revision: 3.347 $
Compiled for 64 bit mode.
Build: linux-AMD64
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, Dave Boone,
Erik Habbinga, Kris Strecker, Walter Wong, Joshua Root,
Fabrice Bacchella, Zhenghua Xue, Qin Li.
Run began: Thu Sep 9 05:35:12 2010
Auto Mode
Include close in write timing
Include fsync in write timing
File size set to 524288 KB
Using Maximum Record Size 4096 KB
Using Minimum Record Size 64 KB
Command line used: iozone -a -c -e -s 512m -q 4096 -y 64
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
524288 64 180511 134124 117072 253960 8331 39705 29158 2244517 22107 127944 130753 107694 238508
524288 128 129035 151059 146851 240197 10450 53010 32751 1649265 32373 93759 173725 124568 229615
524288 256 166804 115095 103785 245417 21156 56883 40058 2190256 27892 135283 123288 113280 203224
524288 512 146588 136656 112183 252597 25964 83133 32226 1879545 28512 160621 124139 110508 257820
524288 1024 164695 144566 167986 251074 42155 101635 48511 1896907 57291 93304 136347 195884 134508
524288 2048 157020 91655 94729 196637 67228 112491 65494 1312761 79570 144270 93551 184443 264820
524288 4096 180368 134415 135635 249570 140082 134864 83140 1261748 143660 132234 149771 218074 318914
iozone test complete.
real 11m44.562s
user 0m1.660s
sys 0m54.910s
# time iozone -a -c -e -s 8g -q 8 -y 8
Iozone: Performance Test of File I/O
Version $Revision: 3.347 $
Compiled for 64 bit mode.
Build: linux-AMD64
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, Dave Boone,
Erik Habbinga, Kris Strecker, Walter Wong, Joshua Root,
Fabrice Bacchella, Zhenghua Xue, Qin Li.
Run began: Thu Sep 9 06:06:56 2010
Auto Mode
Include close in write timing
Include fsync in write timing
File size set to 8388608 KB
Using Maximum Record Size 8 KB
Using Minimum Record Size 8 KB
Command line used: iozone -a -c -e -s 8g -q 8 -y 8
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
8388608 8 191577 187738 266933 270771 1616 9595 16615 1231824 20303 178084 191071 267039 266735
iozone test complete.
real 130m29.814s
user 0m11.350s
sys 3m26.980s
# time iozone -a -c -e -s 8g -q 4096 -y 64
Iozone: Performance Test of File I/O
Version $Revision: 3.347 $
Compiled for 64 bit mode.
Build: linux-AMD64
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, Dave Boone,
Erik Habbinga, Kris Strecker, Walter Wong, Joshua Root,
Fabrice Bacchella, Zhenghua Xue, Qin Li.
Run began: Thu Sep 9 08:17:26 2010
Auto Mode
Include close in write timing
Include fsync in write timing
File size set to 8388608 KB
Using Maximum Record Size 4096 KB
Using Minimum Record Size 64 KB
Command line used: iozone -a -c -e -s 8g -q 4096 -y 64
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
8388608 64 209965 211103 270770 289524 8668 37985 29609 2328289 48280 207213 190578 290091 298315
8388608 128 184319 190475 252482 280378 14800 48736 34851 2498546 40998 196433 185998 303364 303413
8388608 256 199019 203485 258512 282054 23589 65328 48949 2372502 26961 184470 187864 285875 322046
8388608 512 196113 169355 280398 268183 31068 90348 55187 2028023 43433 182702 157900 274920 250775
8388608 1024 189563 184157 260048 290701 60424 106742 76832 2019032 75702 177316 165563 266542 287334
8388608 2048 191172 173989 270190 274896 108373 122064 115195 1931754 119945 173498 163067 307126 308675
8388608 4096 200587 171935 256421 273857 155296 131499 163741 1168187 175844 166101 185756 292802 328752
iozone test complete.
real 145m21.504s
user 0m23.690s
sys 13m25.190s