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: Mon Apr 7 06:03:35 2025 Auto Mode Machine = Linux oleg246-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-oleg246-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 13730 22791 528618 467002 64 8 16284 33791 444572 621657 64 16 19008 74157 1143223 1210227 64 32 27620 110339 1392258 1599680 64 64 26250 172537 1780008 1768283 128 4 19347 24849 524900 420809 128 8 24931 31666 517812 522346 128 16 33427 91885 1133103 819893 128 32 35477 115436 1254941 1196221 128 64 43970 161377 1911894 1684006 128 128 45150 166688 1911894 2248149 256 4 22182 26159 539892 571502 256 8 29899 47886 870974 437582 256 16 50425 69715 1070737 1224606 256 32 56537 81841 1652404 1489641 256 64 67638 98203 1985448 1740810 256 128 53746 170548 2081678 2081678 256 256 63411 222039 1985448 2325094 512 4 26607 30494 425597 379293 512 8 35336 49473 491774 639169 512 16 41929 69592 663252 871966 512 32 78709 91836 1267845 1546280 512 64 93410 123165 1575781 1538526 512 128 103265 147382 1652157 1992458 512 256 65348 111593 1402845 1910902 512 512 108938 255871 2350044 2178404 1024 4 25792 31484 345955 511256 1024 8 37583 46515 873705 597452 1024 16 57193 79171 1166221 1223356 1024 32 77828 92486 1372717 1430318 1024 64 77125 155267 1267398 1715375 1024 128 95219 117147 1786736 2039583 1024 256 117658 145766 1499217 1556257 1024 512 140043 201539 2240689 2138070 2048 4 27743 29166 321409 505058 2048 8 47499 38600 449810 525545 2048 16 59336 75876 706943 631900 2048 32 88631 98206 1151959 1192085 2048 64 113873 161398 1680082 1917479 2048 128 117870 186620 1826943 1302925 2048 256 151311 207097 1659632 1806199 2048 512 137476 193167 831487 1980705 4096 4 24817 28320 292952 302287 4096 8 31725 54912 738798 696477 4096 16 71186 87228 974810 745433 4096 32 100859 132060 1324298 1220871 4096 64 127501 171286 1467010 1570543 4096 128 133142 192472 1517012 1399376 4096 256 146883 223664 1670412 1724573 4096 512 147100 205160 1102559 1642936 8192 4 28823 29508 354971 428587 8192 8 44382 48332 589474 563451 8192 16 70182 74747 906091 866230 8192 32 92119 113077 905781 1209304 8192 64 118640 132282 1201145 1439163 8192 128 132069 155762 1621598 1256444 8192 256 121248 163493 1327050 1434955 8192 512 140795 157781 1296603 1276800 16384 4 24810 26787 385190 427836 16384 8 42786 46315 689914 687395 16384 16 68274 75148 962352 855338 16384 32 93454 116966 1213893 1054241 16384 64 120803 140785 1455187 1145652 16384 128 147747 167934 1550641 1399131 16384 256 150121 176094 1685589 1532657 16384 512 164577 202561 1593945 1566477 32768 4 25395 29172 412867 463525 32768 8