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[zzi@ubuntu:~/tmp$ ./iozone -a -g 1m -b result.wks -+r -i0 -i1
Iozone: Performance Test of File I/O
Version $Revision: 3.429 $
Compiled for 32 bit mode.
Build: linux
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.
Run began: Thu Nov 20 17:49:35 2014
Auto Mode
Using maximum file size of 1024 kilobytes.
Read & Write sync mode active.
Command line used: ./iozone -a -g 1m -b result.wks -+r -i0 -i1
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 47 48 1525895 1728769
64 8 110 102 1940782 2063600
64 16 203 197 2064810 2211451
64 32 443 444 2212349 2292300
64 64 760 763 2291956 1834365
128 4 44 46 1686522 1541439
128 8 94 97 1969264 1830161
128 16 204 217 2100641 1938879
128 32 394 444 2202445 2329438
128 64 886 820 2366158 2203844
128 128 1521 1068 2462484 2911903
256 4 47 47 1696349 1730700
256 8 92 104 1986013 2065421
256 16 200 186 2099119 2223901
256 32 386 380 2168516 2080859
256 64 626 785 2367784 2439095
256 128 1519 1517 2461425 2907925
256 256 3049 3055 2512170 2510893
512 4 48 47 1636062 1789893
512 8 97 97 1968834 2246083
512 16 186 191 2023641 2403536
512 32 337 298 2179637 2496930
512 64 832 687 2255823 2598123
512 128 1467 1523 2380822 2908695
512 256 3275 3093 2266139 2485460
512 512 6107 6117 2391352 2877923
1024 4 46 46 1672967 1969538
1024 8 94 89 1947128 2211363
1024 16 188 193 1987936 2178795
1024 32 356 385 2102522 2503797
1024 64 715 715 2187960 2353833
1024 128 1605 1578 2250136 2738448
1024 256 3273 3159 2281045 2790788
1024 512 6552 6101 2245196 2660394
1024 1024 10736 10715 1812189 1832163
上面的数据是我在pc上测试的,怎么看着都觉得不对呀,write才几十k到几M之间,而read在GB级别,太假了吧,我的参数错了吗? |
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