Iozone: Performance Test of File I/O Version $Revision: 3.263 $ 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, Jean-Marc Zucconi, Jeff Blomberg, Erik Habbinga, Kris Strecker, Walter Wong. Run began: Sat Jul 1 05:33:06 2006 Delay 1 seconds between tests enabled. Using maximum file size of 1048576 kilobytes. Excel chart generation enabled Auto Mode Include close in write timing Include fsync in write timing Command line used: src/current/iozone -+q 1 -i 0 -i 1 -g 1G -Race -f /mnt/nfs02/iozone.tmp 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 3267 2236 52159 1362187 64 8 4122 3704 53027 1522421 64 16 4127 3733 53071 1686863 64 32 3283 3771 53424 2568939 64 64 3287 3802 53641 2674988 128 4 24474 25708 62588 1489173 128 8 24796 25589 63780 2032770 128 16 24696 25518 63872 2373872 128 32 24501 25712 63458 2906061 128 64 24874 25291 63149 3125814 128 128 24782 26761 62345 3291822 256 4 5459 5410 64175 1911191 256 8 5437 3251 64727 2305410 256 16 5409 5407 64337 2636613 256 32 5394 5420 65324 3155892 256 64 5372 5422 65040 3505855 256 128 5360 5009 64842 3601590 256 256 5362 5449 63855 3320447 512 4 10145 10330 69462 1977673 512 8 10122 9573 70786 2348350 512 16 9357 9573 69660 2828614 512 32 9342 9572 71111 3010504 512 64 9318 9517 70128 3218873 512 128 9301 9599 66849 3048305 512 256 9299 9638 67743 3049541 512 512 9355 9687 65456 2767865 1024 4 15965 16518 70919 1825521 1024 8 16004 16567 71874 2120044 1024 16 15996 16579 72239 2456122 1024 32 15945 15534 72717 2789643 1024 64 15964 15586 72727 2909284 1024 128 15004 15567 70640 3002209 1024 256 15046 15647 69442 2934323 1024 512 16028 16740 68674 2466763 1024 1024 16234 15840 67671 1780573 2048 4 20392 23590 69655 1777787 2048 8 21972 21737 70713 2037977 2048 16 22268 23389 70769 2293185 2048 32 20337 23605 70962 2566625 2048 64 21549 23629 72423 2625845 2048 128 21977 23313 69821 2760308 2048 256 21580 22158 69916 2669943 2048 512 22274 23827 68062 2531670 2048 1024 20420 23967 67510 1643751 2048 2048 22234 24340 67377 1342150 4096 4 23247 25383 69083 1840814 4096 8 24184 24646 69378 2181103 4096 16 24945 27297 70385 2496153 4096 32 24379 25976 69795 2732527 4096 64 23427 24157 70033 2821038 4096 128 24653 26701 68739 2910918 4096 256 25493 26177 69264 2899002 4096 512 23036 26476 67542 2771278 4096 1024 23802 26073 67162 1596272 4096 2048 25842 23293 66688 1252189 4096 4096 23648 25367 67464 1233031 8192 4 28545 29340 69691 1980227 8192 8 26495 29346 69741 2339841 8192 16 26964 28678 69594 2696485 8192 32 27785 29288 69742 2893729 8192 64 26576 28359 69234 3055562 8192 128 27301 28602 69150 3128011 8192 256 27451 29489 69293 3153115 8192 512 27252 29835 69391 2880409 8192 1024 28431 30998 67933 1608516 8192 2048 27069 27786 67334 1230037 8192 4096 26376 28588 67611 1204510 8192 8192 25803 27928 67596 1209701 16384 4 29053 31486 68641 2028968 16384 8 29997 34293 69613 2430477 16384 16 29953 34048 69500 2801129 16384 32 29220 31922 69769 3058955 16384 64 29135 31846 70087 3220094 16384 128 29280 34099 69812 3294580 16384 256 28808 33372 69096 3299961 16384 512 29611 32058 68253 2944080 16384 1024 28537 30800 67317 1618486 16384 2048 28665 30423 67121 1220872 16384 4096 29325 34528 67107 1196086 16384 8192 28706 29627 67594 1194169 16384 16384 29442 31680 67401 1207997 32768 64 30453 33592 69552 3268263 32768 128 30175 32552 69564 3345688 32768 256 29084 30670 69250 3351527 32768 512 30635 33440 68107 3042494 32768 1024 29055 32991 67517 1667150 32768 2048 30449 32977 67557 1209150 32768 4096 30103 32957 67905 1185526 32768 8192 29817 33566 67449 1189056 32768 16384 30012 31870 67386 1194646 65536 64 30581 32761 69984 3311922 65536 128 29464 31988 69261 3391801 65536 256 29796 31632 69525 3398993 65536 512 29238 31955 68499 3128819 65536 1024 29544 31788 67481 1665042 65536 2048 29752 32176 67229 1198623 65536 4096 30323 31791 67156 1183751 65536 8192 29469 31827 67470 1180808 65536 16384 29823 32402 67262 1188001 131072 64 30184 31557 69661 3334920 131072 128 30238 31858 94582 3520126 131072 256 30380 31909 94652 3552082 131072 512 29831 31845 92028 3352832 131072 1024 30740 31042 89634 1722227 131072 2048 29698 31257 65658 1189812 131072 4096 29527 31822 86553 1186753 131072 8192 29912 31266 65638 1181743 131072 16384 29981 31535 64288 1184499 262144 64 30126 32078 68410 3344956 262144 128 30278 32108 67842 3442876 262144 256 28914 31532 67655 3439215 262144 512 30320 31899 65334 3301021 262144 1024 30654 32076 63160 1712542 262144 2048 29952 32322 63653 1189827 262144 4096 31049 31454 63112 1179177 262144 8192 30862 32060 63045 1179166 262144 16384 29801 31498 63649 1182704 524288 64 31078 33041 66988 3348009 524288 128 30868 32657 67128 3445546 524288 256 30910 32356 66370 3454036 524288 512 31202 32758 64966 3321265 524288 1024 30857 32069 62915 1712559 524288 2048 30987 32763 62631 1187684 524288 4096 30806 32583 63678 1180913 524288 8192 30737 32236 62819 1180422 524288 16384 30793 33438 63353 1184234 1048576 64 30873 31018 38094 46218 1048576 128 29343 31093 46960 44899 1048576 256 29476 29969 41456 43640 1048576 512 30048 30697 47902 44976 1048576 1024 30308 30762 51204 51730 1048576 2048 29870 31620 45942 47827 1048576 4096 30172 32061 43617 46319 1048576 8192 30175 31542 42705 43531 1048576 16384 30027 30926 42756 41916 iozone test complete. Excel output is below: "Writer report" "4" "8" "16" "32" "64" "128" "256" "512" "1024" "2048" "4096" "8192" "16384" "64" 3267 4122 4127 3283 3287 "128" 24474 24796 24696 24501 24874 24782 "256" 5459 5437 5409 5394 5372 5360 5362 "512" 10145 10122 9357 9342 9318 9301 9299 9355 "1024" 15965 16004 15996 15945 15964 15004 15046 16028 16234 "2048" 20392 21972 22268 20337 21549 21977 21580 22274 20420 22234 "4096" 23247 24184 24945 24379 23427 24653 25493 23036 23802 25842 23648 "8192" 28545 26495 26964 27785 26576 27301 27451 27252 28431 27069 26376 25803 "16384" 29053 29997 29953 29220 29135 29280 28808 29611 28537 28665 29325 28706 29442 "32768" 0 0 0 0 30453 30175 29084 30635 29055 30449 30103 29817 30012 "65536" 0 0 0 0 30581 29464 29796 29238 29544 29752 30323 29469 29823 "131072" 0 0 0 0 30184 30238 30380 29831 30740 29698 29527 29912 29981 "262144" 0 0 0 0 30126 30278 28914 30320 30654 29952 31049 30862 29801 "524288" 0 0 0 0 31078 30868 30910 31202 30857 30987 30806 30737 30793 "1048576" 0 0 0 0 30873 29343 29476 30048 30308 29870 30172 30175 30027 "Re-writer report" "4" "8" "16" "32" "64" "128" "256" "512" "1024" "2048" "4096" "8192" "16384" "64" 2236 3704 3733 3771 3802 "128" 25708 25589 25518 25712 25291 26761 "256" 5410 3251 5407 5420 5422 5009 5449 "512" 10330 9573 9573 9572 9517 9599 9638 9687 "1024" 16518 16567 16579 15534 15586 15567 15647 16740 15840 "2048" 23590 21737 23389 23605 23629 23313 22158 23827 23967 24340 "4096" 25383 24646 27297 25976 24157 26701 26177 26476 26073 23293 25367 "8192" 29340 29346 28678 29288 28359 28602 29489 29835 30998 27786 28588 27928 "16384" 31486 34293 34048 31922 31846 34099 33372 32058 30800 30423 34528 29627 31680 "32768" 0 0 0 0 33592 32552 30670 33440 32991 32977 32957 33566 31870 "65536" 0 0 0 0 32761 31988 31632 31955 31788 32176 31791 31827 32402 "131072" 0 0 0 0 31557 31858 31909 31845 31042 31257 31822 31266 31535 "262144" 0 0 0 0 32078 32108 31532 31899 32076 32322 31454 32060 31498 "524288" 0 0 0 0 33041 32657 32356 32758 32069 32763 32583 32236 33438 "1048576" 0 0 0 0 31018 31093 29969 30697 30762 31620 32061 31542 30926 "Reader report" "4" "8" "16" "32" "64" "128" "256" "512" "1024" "2048" "4096" "8192" "16384" "64" 52159 53027 53071 53424 53641 "128" 62588 63780 63872 63458 63149 62345 "256" 64175 64727 64337 65324 65040 64842 63855 "512" 69462 70786 69660 71111 70128 66849 67743 65456 "1024" 70919 71874 72239 72717 72727 70640 69442 68674 67671 "2048" 69655 70713 70769 70962 72423 69821 69916 68062 67510 67377 "4096" 69083 69378 70385 69795 70033 68739 69264 67542 67162 66688 67464 "8192" 69691 69741 69594 69742 69234 69150 69293 69391 67933 67334 67611 67596 "16384" 68641 69613 69500 69769 70087 69812 69096 68253 67317 67121 67107 67594 67401 "32768" 0 0 0 0 69552 69564 69250 68107 67517 67557 67905 67449 67386 "65536" 0 0 0 0 69984 69261 69525 68499 67481 67229 67156 67470 67262 "131072" 0 0 0 0 69661 94582 94652 92028 89634 65658 86553 65638 64288 "262144" 0 0 0 0 68410 67842 67655 65334 63160 63653 63112 63045 63649 "524288" 0 0 0 0 66988 67128 66370 64966 62915 62631 63678 62819 63353 "1048576" 0 0 0 0 38094 46960 41456 47902 51204 45942 43617 42705 42756 "Re-Reader report" "4" "8" "16" "32" "64" "128" "256" "512" "1024" "2048" "4096" "8192" "16384" "64" 1362187 1522421 1686863 2568939 2674988 "128" 1489173 2032770 2373872 2906061 3125814 3291822 "256" 1911191 2305410 2636613 3155892 3505855 3601590 3320447 "512" 1977673 2348350 2828614 3010504 3218873 3048305 3049541 2767865 "1024" 1825521 2120044 2456122 2789643 2909284 3002209 2934323 2466763 1780573 "2048" 1777787 2037977 2293185 2566625 2625845 2760308 2669943 2531670 1643751 1342150 "4096" 1840814 2181103 2496153 2732527 2821038 2910918 2899002 2771278 1596272 1252189 1233031 "8192" 1980227 2339841 2696485 2893729 3055562 3128011 3153115 2880409 1608516 1230037 1204510 1209701 "16384" 2028968 2430477 2801129 3058955 3220094 3294580 3299961 2944080 1618486 1220872 1196086 1194169 1207997 "32768" 0 0 0 0 3268263 3345688 3351527 3042494 1667150 1209150 1185526 1189056 1194646 "65536" 0 0 0 0 3311922 3391801 3398993 3128819 1665042 1198623 1183751 1180808 1188001 "131072" 0 0 0 0 3334920 3520126 3552082 3352832 1722227 1189812 1186753 1181743 1184499 "262144" 0 0 0 0 3344956 3442876 3439215 3301021 1712542 1189827 1179177 1179166 1182704 "524288" 0 0 0 0 3348009 3445546 3454036 3321265 1712559 1187684 1180913 1180422 1184234 "1048576" 0 0 0 0 46218 44899 43640 44976 51730 47827 46319 43531 41916