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 13:17:17 2025 Auto Mode Machine = Linux oleg231-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-oleg231-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 12037 20037 292475 318502 64 8 11295 39722 581273 686877 64 16 16687 52584 780776 863676 64 32 22084 120115 627470 955947 64 64 18064 143871 1363961 1429325 128 4 13938 17522 87384 253983 128 8 18722 26902 535903 460514 128 16 33657 69571 1048974 1254941 128 32 37992 105169 1065630 1504659 128 64 41924 106231 1911894 1911894 128 128 44462 145936 1705404 1451764 256 4 19026 25251 477684 513063 256 8 26299 32549 500157 484801 256 16 41463 71770 1190657 947860 256 32 59412 77460 1012194 1311351 256 64 60561 142617 1415041 1610276 256 128 59398 151043 1911233 1340826 256 256 66097 167646 1523457 2247235 512 4 21230 22772 421091 292899 512 8 37274 52821 724081 502475 512 16 50176 59855 745445 1155302 512 32 70571 104981 1007827 1233614 512 64 94850 109243 1718254 1647088 512 128 65156 101970 1630828 1319250 512 256 106117 212185 1689859 1910902 512 512 84965 185306 1933266 1821745 1024 4 25398 24128 423491 313345 1024 8 32161 47028 611313 722717 1024 16 57687 70834 923290 746846 1024 32 79875 108164 1317957 936987 1024 64 95754 100540 1321200 1568189 1024 128 95646 156432 1289467 1546729 1024 256 122490 184604 1464956 1726407 1024 512 83584 195975 2085132 1549519 2048 4 23863 27352 385478 324309 2048 8 42905 41454 406512 424470 2048 16 62173 63766 930068 558956 2048 32 87592 123328 1158327 1348327 2048 64 97314 155328 1523901 1305301 2048 128 115981 162178 1415191 1638423 2048 256 126061 173942 1432179 1585208 2048 512 162025 137624 1809243 1577638 4096 4 25732 21854 372190 434770 4096 8 39962 44897 501839 629188 4096 16 51395 66345 740262 692016 4096 32 85049 109005 1077593 964467 4096 64 130570 107685 1076783 969693 4096 128 121636 167860 1435267 1579641 4096 256 112555 202559 1541098 1472795 4096 512 154928 170226 1669114 1256039 8192 4 24364 27082 430390 395212 8192 8 39828 47648 532083 569682 8192 16 72283 73775 991542 995363 8192 32 96732 120401 1076338 1131005 8192 64 106943 142118 1095033 1215077 8192 128 119626 155345 1371985 1103579 8192 256 128639 170003 1509534 1546217 8192 512 129848 172517 1376327 1289498 16384 4 24884 28888 406067 385778 16384 8 44983 48196 634418 581649 16384 16 69426 72276 882571 816622 16384 32 56463 99036 931122 1247159 16384 64 102885 113990 1282012 1294254 16384 128 112355 152878 1404794 1354270 16384 256 136240 171171 1377038 1320111 16384 512 149767 200658 1449783 1437681 32768 4