Iozone: Performance Test of File I/O Version $Revision: 3.429 $ Compiled for 32 bit mode. Build: linux 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, Darren Sawyer, Vangel Bojaxhi, Ben England, Vikentsi Lapa. Run began: Sun Feb 28 17:57:53 2016 Auto Mode Cross over of record size disabled. Include fsync in write timing Excel chart generation enabled Command line used: iozone -az -i 0 -i 1 -e -R -+T -b /home/caperry/a20-toshiba-c10.xls 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 64 4 3337 1993 432398 463774 64 8 3136 1574 309326 338589 64 16 2020 1872 316997 343792 64 32 3222 3525 285628 347801 64 64 72 1814 295047 344233 128 4 1784 4396 308403 216934 128 8 1714 4384 301138 320748 128 16 1424 4276 295502 309113 128 32 1672 4113 284539 316961 128 64 1760 4399 319983 345075 128 128 1703 4357 203838 331646 256 4 2676 7233 277323 332036 256 8 2352 6987 305839 329085 256 16 2834 7353 174853 336827 256 32 2292 5314 200631 350231 256 64 2710 7224 286345 345943 256 128 2449 7014 325691 278257 256 256 2822 7346 333376 326087 512 4 4029 9221 227444 288105 512 8 3985 9119 281940 335974 512 16 3981 9042 297484 356795 512 32 3303 8992 304745 320768 512 64 3901 7455 282088 339051 512 128 4110 9229 302045 308245 512 256 4061 7359 333159 292899 512 512 4036 8946 289425 294264 1024 4 4979 2674 319309 322425 1024 8 8604 2625 314700 327140 1024 16 8524 2525 282474 351274 1024 32 8449 2705 299409 303149 1024 64 7613 2714 290911 299158 1024 128 8603 2618 315950 318315 1024 256 8487 2707 300036 328743 1024 512 8476 2703 312002 313345 1024 1024 3924 2426 314584 305131 2048 4 2530 2483 322374 314928 2048 8 3376 2488 329573 349485 2048 16 2387 2382 338122 331442 2048 32 2776 2674 315959 322265 2048 64 4271 2675 313286 322326 2048 128 4376 2619 325132 321807 2048 256 4370 2679 312715 324309 2048 512 4241 2672 320953 322459 2048 1024 4394 2626 300738 325860 2048 2048 4385 2618 313870 313389 4096 4 6490 4300 313530 321884 4096 8 6510 4323 338681 346999 4096 16 6688 4258 327130 342844 4096 32 6527 4320 322773 332384 4096 64 6528 4312 310988 319525 4096 128 6518 4316 317594 327230 4096 256 6515 4317 326813 327081 4096 512 6673 4249 314593 318654 4096 1024 6504 4308 328758 327654 4096 2048 6512 4312 319900 319596 4096 4096 6504 4293 327648 327311 8192 4 5349 4905 319864 324513 8192 8 5394 5232 343206 347574 8192 16 5824 5128 333266 342720 8192 32 5826 5192 323666 338496 8192 64 5913 5129 313378 320864 8192 128 5808 5271 328061 330335 8192 256 5867 5178 326555 330627 8192 512 5815 5120 318458 325611 8192 1024 5819 5120 309074 312993 8192 2048 5896 5223 326999 328415 8192 4096 5811 5117 323243 325029 8192 8192 5817 5188 325827 325506 16384 4 7370 5809 322418 325783 16384 8 6308 5542 344412 346634 16384 16 7526 8135 339452 341810 16384 32 7528 8181 335030 338065 16384 64 7354 8203 323174 326531 16384 128 9641 7008 328633 330741 16384 256 6367 6609 325893 327830 16384 512 6432 6745 319214 322608 16384 1024 6393 6596 325041 325045 16384 2048 6473 6621 319245 285207 16384 4096 6377 6619 322340 324718 16384 8192 6385 6787 323526 324994 16384 16384 6344 6639 380907 384212 32768 4 7304 7934 322738 325519 32768 8 7688 7965 342610 383597 32768 16 7636 7951 340549 391699 32768 32 7724 7957 335967 314831 32768 64 7875 7882 323589 326814 32768 128 7713 7961 327166 329435 32768 256 7833 7918 330348 357983 32768 512 7707 8026 322377 362794 32768 1024 7653 7964 327408 318943 32768 2048 7643 8098 318222 290527 32768 4096 7622 7943 321279 340808 32768 8192 7666 7988 308584 378544 32768 16384 7724 7877 331703 495366 65536 4 8147 8264 383943 403476 65536 8 7971 8311 344272 513030 65536 16 8028 8602 371611 437402 65536 32 7982 8321 329273 414409 65536 64 7996 8588 321092 369510 65536 128 7976 8255 348208 380158 65536 256 7954 8595 327485 362577 65536 512 8018 8201 341184 373686 65536 1024 7971 8577 337826 372420 65536 2048 7999 8282 320351 446679 65536 4096 7987 8610 320555 484608 65536 8192 7998 8229 314239 478672 65536 16384 7993 8544 358570 433536 131072 4 8015 7376 347866 546283 131072 8 7672 7483 373433 569496 131072 16 7737 7545 411060 530254 131072 32 7937 7182 373782 504136 131072 64 8206 6773 364651 447930 131072 128 8069 7555 362462 470287 131072 256 8117 7508 390957 458260 131072 512 8108 7543 338929 476047 131072 1024 8112 7478 348235 484207 131072 2048 8111 7536 371320 447153 131072 4096 8109 7478 391658 457975 131072 8192 8097 7495 396153 465818 131072 16384 8110 7278 398247 466368 262144 4 8403 7999 463296 548133 262144 8 8328 7944 451565 536344 262144 16 8496 8007 424696 557690 262144 32 8277 7986 407403 508243 262144 64 8493 7977 384480 466221 262144 128 8535 7929 405945 456424 262144 256 8465 8030 406332 464797 262144 512 8330 8191 398631 469101 262144 1024 8461 8297 398500 470516 262144 2048 8496 7865 402427 476001 262144 4096 8323 7884 411350 473618 262144 8192 8324 7929 422259 476779 262144 16384 8437 8130 422639 484931 524288 4 8732 8637 486328 548384 524288 8 8595 8183 496126 571269 524288 16 8687 8688 486969 552892 524288 32 8759 8680 460995 512556 524288 64 8765 8698 436410 469950 524288 128 8792 8609 426665 471104 524288 256 8705 8348 434891 476031 524288 512 7943 7693 440542 476817 524288 1024 8565 8290 440332 477028 524288 2048 8659 8527 432320 477622 524288 4096 8818 8683 437351 480864 524288 8192 8794 8495 446990 481684 524288 16384 8830 8308 441610 481297 iozone test complete. Excel output is below: "Writer report" "4" "8" "16" "32" "64" "128" "256" "512" "1024" "2048" "4096" "8192" "16384" "64" 3337 3136 2020 3222 72 "128" 1784 1714 1424 1672 1760 1703 "256" 2676 2352 2834 2292 2710 2449 2822 "512" 4029 3985 3981 3303 3901 4110 4061 4036 "1024" 4979 8604 8524 8449 7613 8603 8487 8476 3924 "2048" 2530 3376 2387 2776 4271 4376 4370 4241 4394 4385 "4096" 6490 6510 6688 6527 6528 6518 6515 6673 6504 6512 6504 "8192" 5349 5394 5824 5826 5913 5808 5867 5815 5819 5896 5811 5817 "16384" 7370 6308 7526 7528 7354 9641 6367 6432 6393 6473 6377 6385 6344 "32768" 7304 7688 7636 7724 7875 7713 7833 7707 7653 7643 7622 7666 7724 "65536" 8147 7971 8028 7982 7996 7976 7954 8018 7971 7999 7987 7998 7993 "131072" 8015 7672 7737 7937 8206 8069 8117 8108 8112 8111 8109 8097 8110 "262144" 8403 8328 8496 8277 8493 8535 8465 8330 8461 8496 8323 8324 8437 "524288" 8732 8595 8687 8759 8765 8792 8705 7943 8565 8659 8818 8794 8830 "Re-writer report" "4" "8" "16" "32" "64" "128" "256" "512" "1024" "2048" "4096" "8192" "16384" "64" 1993 1574 1872 3525 1814 "128" 4396 4384 4276 4113 4399 4357 "256" 7233 6987 7353 5314 7224 7014 7346 "512" 9221 9119 9042 8992 7455 9229 7359 8946 "1024" 2674 2625 2525 2705 2714 2618 2707 2703 2426 "2048" 2483 2488 2382 2674 2675 2619 2679 2672 2626 2618 "4096" 4300 4323 4258 4320 4312 4316 4317 4249 4308 4312 4293 "8192" 4905 5232 5128 5192 5129 5271 5178 5120 5120 5223 5117 5188 "16384" 5809 5542 8135 8181 8203 7008 6609 6745 6596 6621 6619 6787 6639 "32768" 7934 7965 7951 7957 7882 7961 7918 8026 7964 8098 7943 7988 7877 "65536" 8264 8311 8602 8321 8588 8255 8595 8201 8577 8282 8610 8229 8544 "131072" 7376 7483 7545 7182 6773 7555 7508 7543 7478 7536 7478 7495 7278 "262144" 7999 7944 8007 7986 7977 7929 8030 8191 8297 7865 7884 7929 8130 "524288" 8637 8183 8688 8680 8698 8609 8348 7693 8290 8527 8683 8495 8308 "Reader report" "4" "8" "16" "32" "64" "128" "256" "512" "1024" "2048" "4096" "8192" "16384" "64" 432398 309326 316997 285628 295047 "128" 308403 301138 295502 284539 319983 203838 "256" 277323 305839 174853 200631 286345 325691 333376 "512" 227444 281940 297484 304745 282088 302045 333159 289425 "1024" 319309 314700 282474 299409 290911 315950 300036 312002 314584 "2048" 322374 329573 338122 315959 313286 325132 312715 320953 300738 313870 "4096" 313530 338681 327130 322773 310988 317594 326813 314593 328758 319900 327648 "8192" 319864 343206 333266 323666 313378 328061 326555 318458 309074 326999 323243 325827 "16384" 322418 344412 339452 335030 323174 328633 325893 319214 325041 319245 322340 323526 380907 "32768" 322738 342610 340549 335967 323589 327166 330348 322377 327408 318222 321279 308584 331703 "65536" 383943 344272 371611 329273 321092 348208 327485 341184 337826 320351 320555 314239 358570 "131072" 347866 373433 411060 373782 364651 362462 390957 338929 348235 371320 391658 396153 398247 "262144" 463296 451565 424696 407403 384480 405945 406332 398631 398500 402427 411350 422259 422639 "524288" 486328 496126 486969 460995 436410 426665 434891 440542 440332 432320 437351 446990 441610 "Re-Reader report" "4" "8" "16" "32" "64" "128" "256" "512" "1024" "2048" "4096" "8192" "16384" "64" 463774 338589 343792 347801 344233 "128" 216934 320748 309113 316961 345075 331646 "256" 332036 329085 336827 350231 345943 278257 326087 "512" 288105 335974 356795 320768 339051 308245 292899 294264 "1024" 322425 327140 351274 303149 299158 318315 328743 313345 305131 "2048" 314928 349485 331442 322265 322326 321807 324309 322459 325860 313389 "4096" 321884 346999 342844 332384 319525 327230 327081 318654 327654 319596 327311 "8192" 324513 347574 342720 338496 320864 330335 330627 325611 312993 328415 325029 325506 "16384" 325783 346634 341810 338065 326531 330741 327830 322608 325045 285207 324718 324994 384212 "32768" 325519 383597 391699 314831 326814 329435 357983 362794 318943 290527 340808 378544 495366 "65536" 403476 513030 437402 414409 369510 380158 362577 373686 372420 446679 484608 478672 433536 "131072" 546283 569496 530254 504136 447930 470287 458260 476047 484207 447153 457975 465818 466368 "262144" 548133 536344 557690 508243 466221 456424 464797 469101 470516 476001 473618 476779 484931 "524288" 548384 571269 552892 512556 469950 471104 476031 476817 477028 477622 480864 481684 481297