Iozone: Performance Test of File I/O Version $Revision: 3.483 $ 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, Darren Sawyer, Vangel Bojaxhi, Ben England, Vikentsi Lapa, Alexey Skidanov, Sudhir Kumar. Run began: Thu May 1 15:32:25 2025 Auto Mode Machine = Linux oleg423-client.virtnet 3.10.0-7.9-debug #1 SMP Sat Mar 26 23:2 Excel chart generation enabled Excel chart generation enabled Verify Mode. Pattern dbdbdbdb Performance measurements are invalid in this mode. Using maximum file size of 102400 kilobytes. Using Maximum Record Size 512 kB Command line used: iozone -a -M -R -V 0xab -g 100M -q 512k -i0 -i1 -f /mnt/lustre/d4.lustre-rsync-test/d0.iozone-oleg423-client.virtnet/iozone-file 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 13302 20344 438759 302018 64 8 15682 32937 537079 926260 64 16 11451 61598 799377 789967 64 32 13617 90145 1070292 703068 64 64 15340 117641 1392258 1452528 128 4 14386 22902 361576 364522 128 8 17706 46852 547377 581781 128 16 25811 73015 831319 785122 128 32 34078 101261 1015251 881842 128 64 29091 131948 1266785 1093856 128 128 38152 154193 1508887 1622919 256 4 11616 11468 301883 130343 256 8 13460 23776 584570 563701 256 16 23938 62884 820398 775933 256 32 32812 92453 1040643 973645 256 64 18658 115832 1230218 1185399 256 128 51365 173778 1579483 1243036 256 256 46502 163063 1924938 1600674 512 4 12333 20349 241404 390607 512 8 12525 22633 471372 226963 512 16 43290 70562 471476 699322 512 32 19636 116207 1078159 944860 512 64 68094 151254 1091863 1055894 512 128 49439 187966 1434711 1357615 512 256 31397 179783 1055894 1630828 512 512 70250 82634 1897396 2216629 1024 4 15781 13993 175822 313071 1024 8 16961 41563 237477 133335 1024 16 29533 50163 743613 607422 1024 32 39015 42811 419848 1046071 1024 64 88757 78232 1253344 1262555 1024 128 90085 119751 1519371 547561 1024 256 63558 135322 1738989 1777861 1024 512 58857 130115 1720874 1939207 2048 4 16857 9747 208004 296216 2048 8 26359 24271 305671 463548 2048 16 23131 17625 276303 799375 2048 32 37994 88604 320809 1074439 2048 64 44524 50732 1249662 1269610 2048 128 63562 96823 991244 1334295 2048 256 39510 57110 317818 1039590 2048 512 92360 101361 1677457 1168252 4096 4 15957 16104 224239 187924 4096 8 24834 34150 226173 623163 4096 16 29670 27159 1059190 219506 4096 32 33509 77814 892562 954341 4096 64 41561 49300 1036442 541510 4096 128 44146 52510 1319214 924006 4096 256 74157 74422 349697 1173985 4096 512 86426 129887 1586936 1405098 8192 4 14736 17346 301520 278792 8192 8 21929 26657 295070 306425 8192 16 28310 43158 558197 691777 8192 32 58855 46356 488197 295197 8192 64 59735 58970 527768 1049446 8192 128 51723 3486 1309650 1233707 8192 256 58998 48239 1534341 1254151 8192 512 58843 71055 1198171 1142361 16384 4 11071 12500 117073 139840 16384 8 18720 17679 524809 389039 16384 16 36897 42255 653085 590009 16384 32 35175 53059 726307 625633 16384 64 49961 60726 811770 1122724 16384 128 55023 74907 821946 1121423 16384 256 53418 59193 545627 617493 16384 512 65226 69827 456605 1273224 32768 4 11442 14593 154643 181093 32768 8 24370 28364 365620 403804 32768 16 39079 42173 285866 602496 32768 32 41511 47886 707577 442941 32768 64 71370 81017 1328788 1068825 32768 128 77270 134281 615661 992971 32768 256 65874 82260 426983 937242 32768 512 58504 114881 985113 1358712 65536 4 11940 13120 214324 216807 65536 8 23234 23139 274564 281960 65536 16 32638 36706 464080 629125 65536 32