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 May 1 16:41:16 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 5425 22409 335206 361867 64 8 3739 42671 582535 610350 64 16 4370 32716 952555 969761 64 32 7239 78334 852702 1033216 64 64 8576 107554 901377 901377 128 4 10596 24710 373136 408949 128 8 20394 38381 587511 595328 128 16 7365 69943 864797 877518 128 32 15083 82585 1123617 1093856 128 64 16716 114500 1319723 1409828 128 128 23664 121551 1332828 1598754 256 4 9753 17599 361066 334623 256 8 20747 17764 147293 605332 256 16 29143 64097 775373 638445 256 32 35759 79279 1098113 1147398 256 64 29677 89479 1354356 1266495 256 128 31503 130533 1506359 652807 256 256 22695 113673 684432 2000242 512 4 16856 12295 326573 138459 512 8 25490 24830 663252 581216 512 16 38687 68230 240592 887094 512 32 38699 71201 1125630 1105920 512 64 49421 131241 1333173 1446306 512 128 38141 140931 1528669 1551867 512 256 33947 166888 1882427 1729323 512 512 25001 110134 2152206 1924603 1024 4 18170 16242 252900 351188 1024 8 26764 33947 323737 403783 1024 16 37422 48397 812086 878171 1024 32 30497 54558 1111877 1236742 1024 64 59003 120669 1207534 1287921 1024 128 65515 135664 1352828 1329791 1024 256 39833 47139 564473 1589665 1024 512 46638 155222 1914144 2031864 2048 4 14649 17109 329522 265426 2048 8 24814 25875 492293 595167 2048 16 34957 56936 393315 960111 2048 32 44175 93872 786493 789239 2048 64 60113 102744 1153196 1314489 2048 128 57321 113223 1192085 904603 2048 256 100628 161602 1782215 1693997 2048 512 94130 146716 1776319 1870302 4096 4 17511 18804 347912 272610 4096 8 26542 29974 533821 620507 4096 16 32753 30145 898255 769059 4096 32 68334 102294 1171902 564351