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: Fri Feb 7 17:22:22 2025 Auto Mode Machine = Linux oleg136-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-oleg136-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 19924 31953 532815 447537 64 8 31418 61415 780776 752329 64 16 26914 88277 1210227 1279447 64 32 33350 59090 939223 627470 64 64 28713 131986 679917 916769 128 4 15861 18898 236111 290230 128 8 21458 20552 520321 400110 128 16 25641 51180 488594 403721 128 32 46044 124859 1598754 1319723 128 64 53198 140365 1142750 1827299 128 128 81742 157819 1487977 1521718 256 4 22381 39781 506767 562520 256 8 48844 63318 787890 768712 256 16 60939 89071 870974 927393 256 32 87789 145694 1525622 941213 256 64 100511 212967 1319408 1967260 256 128 97935 260439 1868008 1790149 256 256 116157 285053 1662639 2266207 512 4 32493 23046 478089 419938 512 8 48338 65239 560729 792778 512 16 68660 113600 1242177 1103080 512 32 86387 118359 1446306 1365383 512 64 113199 157882 1216149 1252318 512 128 113624 215139 1890713 1279935 512 256 165537 296990 1961520 2235086 512 512 164472 325929 2007358 2317080 1024 4 27834 35820 394765 254791 1024 8 49275 68343 642400 780504 1024 16 74225 69118 508954 1144163 1024 32 72516 95915 1268896 835140 1024 64 80878 109239 1329791 1321607 1024 128 86920 236106 1698417 1477555 1024 256 171470 219233 1002839 1334750 1024 512 138772 223187 1703807 1630707 2048 4 22571 31888 475717 493736 2048 8 47188 66599 835937 871560 2048 16 89245 109571 1215532 973826 2048 32 98783 97905 1481839 1261777 2048 64 76721 133656 1208181 768756 2048 128 91066 170027 1271301 1801275 2048 256 79701 147464 937785 1630647 2048 512 138538 224410 1231389 1324829 4096 4 31644 30808 416261 327754 4096 8 54796 60284 826280 827674 4096 16 86471 80895 698374 799814 4096 32 133415 107630 870183 1114576 4096 64 97181 122583 828472 930059 4096 128 122359 175087 1356719 1277997 4096 256 181302 245771 1543313 1527261 4096 512 194715 220952 1802940 1950306 8192 4 29182 33144 398383 426713 8192 8 59914 64610 830149 790882 8192 16 82866 87187 1078195 993090 8192 32 126373 114241 989372 615205 8192 64 119946 109893 596349 870267 8192 128 111274 148929 1669828 1581444 8192 256 195606 198617 1479505 1482185 8192 512 157784 195652 1524943 1613905 16384 4 31283 35774 334887 280068 16384 8 46042 61668 717218 547065 16384 16 83653 96680 1081961 727568 16384 32 124302 115079 985086 988004 16384 64 99689 163085 1477494 1636107 16384 128 120890 119893 940360 838658 16384 256 107369 166087 939768 894426 16384 512 121058 186080 991468 1128754 32768 4 33627 38327