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 15:37:24 2025 Auto Mode Machine = Linux oleg321-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-oleg321-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 7228 25001 290890 404998 64 8 15924 46371 560635 592827 64 16 11226 62677 821391 821391 64 32 9207 64655 1210227 1143223 64 64 9851 110703 1421755 1484662 128 4 13428 15518 304037 312897 128 8 12624 31575 472262 131302 128 16 27267 37691 847059 786271 128 32 23951 106209 1065630 1165070 128 64 23988 162845 726674 1391557 128 128 32136 172471 1878447 1455701 256 4 8829 16004 353110 328180 256 8 25921 49005 572721 112873 256 16 35899 79922 901693 679237 256 32 50266 46478 941213 1122215 256 64 60221 134810 1543163 1195962 256 128 46067 52276 1430119 1445521 256 256 33876 172162 2034350 1729594 512 4 13245 23439 225960 277495 512 8 29526 16941 486317 487089 512 16 15592 70202 713970 711133 512 32 69274 110156 969603 939486 512 64 60794 153295 585016 1100818 512 128 71588 72000 1279935 1329871 512 256 88272 167212 1488408 1471074 512 512 30285 222495 2099600 1968713 1024 4 11147 13768 315857 98233 1024 8 32962 19132 586839 277671 1024 16 26217 23170 237858 733454 1024 32 54323 23749 528949 516917 1024 64 43233 168749 1199106 1079190 1024 128 68293 148149 1139005 1436056 1024 256 72706 162228 1452570 966941 1024 512 37671 113234 1026078 1735476 2048 4 13418 9228 182660 107433 2048 8 21712 20534 535571 292146 2048 16 41148 55489 707700 801538 2048 32 24849 63425 905843 923370 2048 64 104559 100401 971074 1206823 2048 128 65775 70661 1285570 1061690 2048 256 94849 126054 1139731 1019358 2048 512 124649 121297 1562145 1430033 4096 4 15302 11498 162275 337981 4096 8 22287 20299 293764 326192 4096 16 24496 48692 300906 747022 4096 32 37602 71474 473903 1050769 4096 64 42116 69854 827793 808509 4096 128 46562 170694 1410984 1401316 4096 256 113217 94902 1404639 1142597 4096 512 65330 99344 1180032 540863 8192 4 12754 12190 261307 294272 8192 8 21629 25664 185401 142190 8192 16 31049 45539 356388 360184 8192 32 61147 55965 304365 360245 8192 64 111764 95595 520690 556101 8192 128 52084 90201 1307159 1260500 8192 256 89361 133064 1104466 430498 8192 512 95086 110626 743302 1313053 16384 4 13668 17109 184773 214200 16384 8 23575 30534 247946 388874 16384 16 34633 40291 330388 586484 16384 32 41902 56575 620324 389187 16384 64 50022 68423 454440 527427 16384 128 57133 75150 1520550 1102920 16384 256 75263 100690 858244 978383 16384 512 58073 128598 730189 569974 32768 4 14289 15380 155890 204093 32768 8 20980 23401 225925 162148 32768 16 34754 38467 418098 716552 32768 32 51470 63143 580448 346956 32768 64 67540 85426 757975 777449 32768 128 72517 93490 709755 665490 32768 256 69124 77991 1215931 1063342 32768 512 62307 115169 1468618 1154572 65536 4 13399 16231 259713 213637 65536 8 23290 25346 449776 290068 65536 16 26650 36206 618257 642208 65536 32 45387 67834 795242 658447 65536 64