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 Feb 27 11:27:30 2025 Auto Mode Machine = Linux oleg322-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-oleg322-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 16727 27327 294723 264258 64 8 32471 54706 842003 546928 64 16 39852 91155 1083249 1163036 64 32 41638 91310 1421755 1484662 64 64 48746 171108 1879725 621657 128 4 27503 38800 283188 499970 128 8 36403 57816 576780 652488 128 16 41599 63431 1130717 992724 128 32 59154 154994 927549 1093856 128 64 77956 176788 1772988 1852520 128 128 78872 235696 2202044 1579934 256 4 24256 31361 577962 512818 256 8 47629 64032 599585 621448 256 16 54491 95632 794889 1241598 256 32 63731 110914 610842 1579483 256 64 80029 128641 1662639 1649865 256 128 93022 242664 1600674 1790149 256 256 114278 228562 2261434 1729594 512 4 30013 31677 293419 446758 512 8 54277 60009 654759 844865 512 16 71748 104192 869143 908101 512 32 97525 123405 1140576 1459080 512 64 130310 225367 1230786 1254513 512 128 113480 215118 1350783 1789859 512 256 148699 184971 1501940 1541840 512 512 170046 329075 2178404 2081286 1024 4 29054 34689 332896 559910 1024 8 41972 67218 843505 746327 1024 16 76498 114079 813316 1281771 1024 32 110689 151638 1464956 1602715 1024 64 150148 156980 1374474 1386007 1024 128 126606 216482 1568189 1799462 1024 256 152857 250000 1560781 1718120 1024 512 123447 199609 1673273 1723636 2048 4 27551 38031 432245 489376 2048 8 48999 59751 590381 749113 2048 16 68879 94355 1003519 1219675 2048 32 118047 140593 1400881 1244231 2048 64 138998 167661 1162875 1288849 2048 128 133159 200709 1503627 1381061 2048 256 178429 219552 1565847 1771556 2048 512 199261 257972 1861789 1876840 4096 4 30961 31370 416342 439722 4096 8 41622 50558 818213 714939 4096 16 85184 96241 971997 1007628 4096 32 106061 130044 1181412 954553 4096 64 127200 170850 1546230 1318303 4096 128 145973 225428 1345561 1473426 4096 256 161253 259668 1356290 1387509 4096 512 183667 215262 1614527 1409016 8192 4 28530 32727 487677 343292 8192 8 50603 57696 630201 738810 8192 16 80933 91688 1158852 1019280 8192 32 108611 133727 1369197 1268504 8192 64 149135 170017 1431906 1348720 8192 128 161910 230196 1408774 1689783 8192 256 160573 235374 1416557 1703776 8192 512 222759 250328 1810045 1740015 16384 4 29329 33423 438626 436300 16384 8 50833 57072 698767 648175 16384 16 86148 91843 998426 1096077 16384 32 102806 130378 1233725 1295596 16384 64 144901 191031 1529076 1375880 16384 128 145916 209527 1507144 1589448 16384 256 197222 250961 1749887 1757540 16384 512 195765 247496 1674091 1638565 32768 4 29410 31561 495853 498099 32768 8 53118 58648 648612 710970 32768 16 79368 93104 952751 986839 32768 32 112511 140327 1221366 1122392 32768 64 130623 183830 1393143 1349361 32768 128 176209 219564 1549676 1461746 32768 256 178133 244493 1570339 1515066 32768 512 190656 231936 1681708 1664881 65536 4