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 Apr 25 18:29:48 2025 Auto Mode Machine = Linux oleg202-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-oleg202-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 7962 25986 335206 262193 64 8 17107 33492 587635 515423 64 16 21813 76722 811459 627470 64 32 26328 96705 1066042 1105556 64 64 16784 53646 1892980 1163036 128 4 9608 23009 88580 299792 128 8 14748 40684 447838 474349 128 16 35348 55008 1152564 739689 128 32 12236 84098 1114289 189051 128 64 28861 122271 1346196 1306873 128 128 40303 133456 1658003 1363288 256 4 21856 17779 304020 355566 256 8 36629 35669 510866 486559 256 16 44992 67067 768712 812329 256 32 42639 40596 1093639 984356 256 64 37155 152546 1178892 1662639 256 128 70697 172162 1158540 1588832 256 256 44238 195873 1610276 1911233 512 4 10157 20865 280687 290915 512 8 27180 46554 305482 446016 512 16 25788 37741 260307 770037 512 32 69527 122045 850554 600895 512 64 26740 125116 1017858 1225169 512 128 43091 162850 1316016 761841 512 256 52148 199750 1842059 1683237 512 512 63430 141553 1856390 2016784 1024 4 17146 23389 231150 314584 1024 8 34480 29454 587160 564770 1024 16 25614 56486 569865 431880 1024 32 54674 73393 848337 956178 1024 64 71150 106668 1211622 1174513 1024 128 61461 78274 663642 1434138 1024 256 66515 106193 1526390 1051449 1024 512 70639 149620 1673273 1638171 2048 4 16198 20546 141671 279549 2048 8 24910 24072 636206 451109 2048 16 42102 50485 395452 930068 2048 32 57419 79106 993193 983189 2048 64 73597 119146 1176251 495874 2048 128 99712 132078 1231566 530970 2048 256 140669 133664 1304508 822175 2048 512 57774 141347 1603854 1621719 4096 4 18049 18714 367391 239448 4096 8 30907 33606 311106 422225 4096 16 52412 46314 646885 819032 4096 32 77364 94858 520920 849445 4096 64 104673 107497 532563 935579 4096 128 94709 153500 1294561 1189592 4096 256 129677 118361 1547344 1869448 4096 512 88635 98672 1362205 1430725 8192 4 21973 23865 290289 274016 8192 8 32920 33483 475864 458399 8192 16 40470 59260 529272 510463 8192 32 58913 78605 613864 840383 8192 64 66232 96115 995161 1340093 8192 128 104815 120479 801958 744397 8192 256 85394 134145 1117142 1176348 8192 512 90691 125545 603641 1826110 16384 4 18928 20817 336290 281067 16384 8 36193 36311 543723 374269 16384 16 58085 51848 804792 617843 16384 32 62950 72382 955886 841801 16384 64 76375 80774 581280 860006 16384 128 96128 112683 855871 592660 16384 256 116862 145241 1138082 1054662 16384 512