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 15:52:31 2025 Auto Mode Machine = Linux oleg308-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-oleg308-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 5206 24188 318124 326244 64 8 13844 42082 524487 546928 64 16 10516 64592 792299 743988 64 32 15384 94960 998622 1143223 64 64 20538 126991 1638743 1526887 128 4 8859 14323 296318 324823 128 8 16614 45436 597981 573699 128 16 26277 75025 482881 172971 128 32 9632 22898 1123617 212638 128 64 17757 107658 1306873 456986 128 128 35012 153487 859260 448961 256 4 9534 23845 327779 366864 256 8 19506 28552 569985 554101 256 16 47762 76834 952062 836374 256 32 58100 87639 951219 1003679 256 64 62106 83821 1422540 1003679 256 128 63039 175827 1206714 1523457 256 256 36598 199698 2266207 1842366 512 4 14634 24346 255476 375053 512 8 33119 42748