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: Tue Apr 8 15:35:12 2025 Auto Mode Machine = Linux oleg209-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-oleg209-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 18626 27682 374488 329852 64 8 30947 41426 481234 376589 64 16 36468 87786 1232453 809014 64 32 37628 121916 1105556 1648808 64 64 43870 126215 1460430 1526887 128 4 22366 25063 278343 421139 128 8 37208 51737 490380 669577 128 16 38485 76370 790905 727658 128 32 55223 111203 1543594 1172704 128 64 63304 152355 1377278 1455701 128 128 78919 179267 1852520 1778862 256 4 22539 25186 345054 342304 256 8 41584 48193 757326 548441 256 16 62181 96128 799625 625794 256 32 86628 126728 1445521 941213 256 64 80250 141826 1260547 1729594 256 128 95309 179022 1523457 1561112 256 256 79086 217321 1790149 1938842 512 4 24419 28510 344324 318816 512 8 36117 49564 637650 485218 512 16 59306 71829 860437 635951 512 32 91671 97189 1053821 896351 512 64 86470 215679 1073309 1165966 512 128 144711 213153 1547395 1650887 512 256 110873 196246 1657257 1679288 512 512 120220 187001 1931527 1610042 1024 4 28143 29342 350329 366658 1024 8 42445 57028 622476 526163 1024 16 71473 83049 740919 765890 1024 32 105166 102339 1157109 1010864 1024 64 62852 154914 1196101 1354107 1024 128 145681 200046 1399100 1367473 1024 256 39605 252648 1854631 1495042 1024 512 144695 284438 1987669 1983996 2048 4 26687 29280 374537 408057 2048 8 47065 50246 461903 577404 2048 16 74175 78191 921686 431247 2048 32 99892 116529 968774 1149954 2048 64 122437 133419 1281543 1407538 2048 128 114771 183377 1243511 1504945 2048 256 116660 156360 1620190 1456709 2048 512 116035 223168 1630647 1606254 4096 4 26488 28268 329977 147016 4096 8 46155 49147 497926 488539 4096 16 75771 91308 1116968 957212 4096 32 93753 126236 1165305 1260370 4096 64 125301 141749 1523334 1377275 4096 128 150427 204749 1503076 1635118 4096 256 163037 197606 1657679 1601881 4096 512 178598 246926 1629380 1834318 8192 4 28893 31769 490098 496996 8192 8 55528 60429 655885 688685 8192 16 84845 104824 889553 1007888 8192 32 104719 151617 1296603 1256444 8192 64 128514 182881 1477405 1257409 8192 128 179550 213473 1655986 1663039 8192 256 183093 221226 1441759 1513391 8192 512 205566 226392 1827761 1435435 16384 4 28805 32556 467111 466873 16384 8 53439 54398 701936 675237 16384 16 79397 106841 894379 558228 16384 32 125256 139893 957912 1247249 16384 64 144417 192043 1217765 1423093 16384 128 169546 189860 1447859 1484035 16384 256 177281 234620 1487279 1721179 16384 512 158371 214483 1533786 1730454 32768 4 28795 34064