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 May 16 08:52:59 2025 Auto Mode Machine = Linux oleg314-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-oleg314-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 12643 24288 792299 780776 64 8 10788 48817 842003 1210227 64 16 18996 63673 1279447 1363961 64 32 13524 114725 1484662 1255511 64 64 22214 133033 1947927 1124074 128 4 7942 24558 699227 544601 128 8 22330 48630 637004 1155043 128 16 26005 49882 1243315 1082825 128 32 36878 101510 1471662 1561553 128 64 31698 140955 244275 1622919 128 128 27415 189051 1911894 2132084 256 4 17189 23432 831194 799625 256 8 25927 49563 977189 965763 256 16 48120 64127 1224606 1243036 256 32 30947 130090 1312954 1080434 256 64 56978 151299 588414 1471270 256 128 46731 148065 1778290 2223962 256 256 46384 214585 1718521 285736 512 4 25579 28533 533297 241866 512 8 34210 42366 658776 1030558 512 16 49249 62483 1753325 1547395 512 32 38603 119538 1227971 1057974 512 64 64225 128155 1488408 1518938 512 128 81529 166345 837942 442524 512 256 98328 136897 1856390 1450212 512 512 71578 80845 2178404 1910902 1024 4 22161 19244 760197 688207 1024 8 37947 38373 428604 1004951 1024 16 51405 78450 849679 1528019 1024 32 90701 114362 1102176 1278338 1024 64 56106 75671 1592612 1587315 1024 128 101397 183735 678209 1643814 1024 256 93310 169984 1777861 1653942 1024 512 59999 214986 1771262 1244266 2048 4 18342 27354 668851 640380 2048 8 34565 45498 518346 353410 2048 16 56830 82291 1186650 797446 2048 32 74848 130554 1188621 1067761 2048 64 83255 112868 1392253 1082427 2048 128 71074 142508 1463909 1544450 2048 256 120662 221499 1654199 1659632 2048 512 144541 176399 1605053 1673209 4096 4 26248 31882 751860 816735 4096 8 36827 37174 566846 995887 4096 16 48615 53003 1246471 1339894 4096 32 59983 88489 694843 894514 4096 64 105338 117438 1081052 1360802 4096 128 87817 125620 1069743 709858 4096 256 83819 145247 1437188 1416802 4096 512 133077 179681 1326445 1416335 8192 4 26183 30117 575195 500704 8192 8 41511 47626 760426 945512 8192 16 58650 70865 814563 992860 8192 32 93697 112222 927843 1172135 8192 64 97427 134847 1603062 1294356 8192 128 100860 92119 1416090 1483529 8192 256 106862 118869 1710222 1529491 8192 512 109293 152109 1142551 1635414 16384 4 25735 28103 523031 857751 16384 8 41415 55911 1051611 1035714 16384 16 74883 85657 1281104 1015256 16384 32 92156 115647 1325893 1050470 16384 64 133526 143216 1237167 1427794 16384 128 128212 164446 1447219 1427409 16384 256 122671 184398 1428031 1544507 16384 512 131373 198832 1628315 1453248 32768 4 27410 28890 526850 741055 32768 8 44416 48466 791380 941202 32768 16 54019 58407 782722 988237 32768 32 70825 91348 1051031 1288452 32768 64 105432 113507 1024480 1052617 32768 128 111190 162936 1163929 1488097 32768 256 118865 164913 1132631 1199944 32768 512