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: Sun Apr 13 05:14:11 2025 Auto Mode Machine = Linux oleg205-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-oleg205-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 22345 27800 541412 297664 64 8 29603 51773 542506 679917 64 16 35358 70091 955947 688639 64 32 41748 141594 1526887 1460430 64 64 34521 163699 1124074 2067979 128 4 27124 22739 506097 310724 128 8 28475 57121 672934 702889 128 16 47461 98223 1220700 1303699 128 32 56466 121195 1406136 1406136 128 64 73105 208509 1778862 1878447 128 128 47410 144483 1755594 1543594 256 4 21084 25811 373111 280951 256 8 40520 45430 609455 718796 256 16 62914 70424 735537 1231629 256 32 71526 131766 958864 917880 256 64 87432 174626 1415041 1298662 256 128 87525 233127 1662639 1662639 256 256 95521 281688 2305128 2325094 512 4 26827 27058 395717 496665 512 8 44661 57599 756207 746222 512 16 69330 73572 780390 1258188 512 32 89621 143463 1422357 1198502 512 64 98292 201022 1125040 1325766 512 128 109987 150491 1889050 1999881 512 256 102359 142502 1450212 1429934 512 512 118300 277818 1789859 2370799 1024 4 24656 28411 387010 372090 1024 8 44223 60490 573365 642785 1024 16 74804 108360 919928 737231 1024 32 109426 113423 1196101 935966 1024 64 135505 176552 1594978 1194770 1024 128 164420 226148 1279861 1838751 1024 256 172538 277062 1544504 1622698 1024 512 168444 266110 1957770 2090206 2048 4 29204 28263 426748 370482 2048 8 50987 52343 548043 743407 2048 16 67563 93575 669060 573319 2048 32 99042 124877 599361 640380 2048 64 127727 131467 1431940 765059 2048 128 174058 160515 1102856 800940 2048 256 153859 280581 1502575 1578798 2048 512 168960 242107 1656751 1452522 4096 4 29796 31423 398560 349904 4096 8 52527 47814 603505 493506 4096 16 79475 71684 1100793 716341 4096 32 99042 116748 1066092 890065 4096 64 135620 134220 1019165 1481431 4096 128 121643 179231 1146027 1094621 4096 256 163128 184428 1535726 1540960 4096 512 152171 217525 1687807 1686979 8192 4 25844 32698 448233 492635 8192 8 49984 51614 676748 680339 8192 16 78121 88765 751692 847952 8192 32 109659 132922 1285639 1303193 8192 64 122777 180217 1222122 1428453 8192 128 124481 189432 1235614 1236370 8192 256 163063 215052 1563098 1602539 8192 512 175120 242539 1514258 1223428 16384 4 25909 28109 450059 412935 16384 8 45825 50087 554883 588508 16384 16 79741 81881 931754 944976 16384 32 96303 133814 1050053 1204172 16384 64 126904 161734 1208173 1382607 16384 128 154745 197778 1480040 1509064 16384 256 161045 213928 1680601 1730803 16384 512 152755 202774 1588676 1704529 32768 4 27854 29520 371594 320918 32768 8 42544 45704 591117 698543 32768 16 63442 78197 933829 888435 32768 32 113211 114805 1234055 1040519 32768 64 144718 145852 1207237 1398616 32768 128 175421 185848 1539194 1547112 32768 256 176894 170907 1600159 1567849 32768 512