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  1. Iozone: Performance Test of File I/O
  2. Version $Revision: 3.420 $
  3. Compiled for 64 bit mode.
  4. Build: freebsd
  5.  
  6. Contributors:William Norcott, Don Capps, Isom Crawford, Kirby Collins
  7. Al Slater, Scott Rhine, Mike Wisner, Ken Goss
  8. Steve Landherr, Brad Smith, Mark Kelly, Dr. Alain CYR,
  9. Randy Dunlap, Mark Montague, Dan Million, Gavin Brebner,
  10. Jean-Marc Zucconi, Jeff Blomberg, Benny Halevy, Dave Boone,
  11. Erik Habbinga, Kris Strecker, Walter Wong, Joshua Root,
  12. Fabrice Bacchella, Zhenghua Xue, Qin Li, Darren Sawyer,
  13. Vangel Bojaxhi, Ben England, Vikentsi Lapa.
  14.  
  15. Run began: Sat Nov 23 10:10:22 2013
  16.  
  17. Excel chart generation enabled
  18. Record Size 128 KB
  19. File size set to 16777216 KB
  20. CPU utilization Resolution = 0.000 seconds.
  21. CPU utilization Excel chart enabled
  22. Command line used: iozone -R -l 8 -u 8 -r 128k -s 16384m -+u -F /tmp/0 /tmp/1 /tmp/2 /tmp/3 /tmp/4 /tmp/5 /tmp/6 /tmp/7
  23. Output is in Kbytes/sec
  24. Time Resolution = 0.000001 seconds.
  25. Processor cache size set to 1024 Kbytes.
  26. Processor cache line size set to 32 bytes.
  27. File stride size set to 17 * record size.
  28. Min process = 8
  29. Max process = 8
  30. Throughput test with 8 processes
  31. Each process writes a 16777216 Kbyte file in 128 Kbyte records
  32.  
  33. Children see throughput for 8 initial writers = 2108641.94 KB/sec
  34. Parent sees throughput for 8 initial writers = 1893354.91 KB/sec
  35. Min throughput per process = 225765.97 KB/sec
  36. Max throughput per process = 285415.06 KB/sec
  37. Avg throughput per process = 263580.24 KB/sec
  38. Min xfer = 13271168.00 KB
  39. CPU Utilization: Wall time 63.542 CPU time 63.298 CPU utilization 99.62 %
  40.  
  41.  
  42. Children see throughput for 8 rewriters = 1926105.30 KB/sec
  43. Parent sees throughput for 8 rewriters = 1852127.04 KB/sec
  44. Min throughput per process = 219884.30 KB/sec
  45. Max throughput per process = 283911.31 KB/sec
  46. Avg throughput per process = 240763.16 KB/sec
  47. Min xfer = 12993664.00 KB
  48. CPU utilization: Wall time 59.096 CPU time 55.340 CPU utilization 93.64 %
  49.  
  50.  
  51. Children see throughput for 8 readers = 3436913.00 KB/sec
  52. Parent sees throughput for 8 readers = 3436634.99 KB/sec
  53. Min throughput per process = 417521.41 KB/sec
  54. Max throughput per process = 444066.66 KB/sec
  55. Avg throughput per process = 429614.12 KB/sec
  56. Min xfer = 15774336.00 KB
  57. CPU utilization: Wall time 37.783 CPU time 63.669 CPU utilization 168.51 %
  58.  
  59.  
  60. Children see throughput for 8 re-readers = 3551873.88 KB/sec
  61. Parent sees throughput for 8 re-readers = 3549485.86 KB/sec
  62. Min throughput per process = 429263.75 KB/sec
  63. Max throughput per process = 463978.19 KB/sec
  64. Avg throughput per process = 443984.23 KB/sec
  65. Min xfer = 15526656.00 KB
  66. CPU utilization: Wall time 36.170 CPU time 61.719 CPU utilization 170.63 %
  67.  
  68.  
  69. Children see throughput for 8 reverse readers = 3486933.75 KB/sec
  70. Parent sees throughput for 8 reverse readers = 3485538.01 KB/sec
  71. Min throughput per process = 420652.06 KB/sec
  72. Max throughput per process = 448605.41 KB/sec
  73. Avg throughput per process = 435866.72 KB/sec
  74. Min xfer = 15732224.00 KB
  75. CPU utilization: Wall time 37.416 CPU time 62.406 CPU utilization 166.79 %
  76.  
  77.  
  78. Children see throughput for 8 stride readers = 3304420.69 KB/sec
  79. Parent sees throughput for 8 stride readers = 3304169.20 KB/sec
  80. Min throughput per process = 408330.91 KB/sec
  81. Max throughput per process = 414873.69 KB/sec
  82. Avg throughput per process = 413052.59 KB/sec
  83. Min xfer = 16512640.00 KB
  84. CPU utilization: Wall time 40.440 CPU time 79.247 CPU utilization 195.96 %
  85.  
  86.  
  87. Children see throughput for 8 random readers = 1829319.41 KB/sec
  88. Parent sees throughput for 8 random readers = 1829193.33 KB/sec
  89. Min throughput per process = 226749.11 KB/sec
  90. Max throughput per process = 229466.92 KB/sec
  91. Avg throughput per process = 228664.93 KB/sec
  92. Min xfer = 16578688.00 KB
  93. CPU utilization: Wall time 73.115 CPU time 34.592 CPU utilization 47.31 %
  94.  
  95.  
  96. Children see throughput for 8 mixed workload = 661635.17 KB/sec
  97. Parent sees throughput for 8 mixed workload = 603956.55 KB/sec
  98. Min throughput per process = 8979.32 KB/sec
  99. Max throughput per process = 162288.03 KB/sec
  100. Avg throughput per process = 82704.40 KB/sec
  101. Min xfer = 928384.00 KB
  102. CPU utilization: Wall time 110.897 CPU time 28.993 CPU utilization 26.14 %
  103.  
  104.  
  105. Children see throughput for 8 random writers = 596152.74 KB/sec
  106. Parent sees throughput for 8 random writers = 552922.17 KB/sec
  107. Min throughput per process = 69219.80 KB/sec
  108. Max throughput per process = 79797.17 KB/sec
  109. Avg throughput per process = 74519.09 KB/sec
  110. Min xfer = 14553344.00 KB
  111. CPU utilization: Wall time 225.669 CPU time 74.003 CPU utilization 32.79 %
  112.  
  113.  
  114. Children see throughput for 8 pwrite writers = 1014321.10 KB/sec
  115. Parent sees throughput for 8 pwrite writers = 961102.04 KB/sec
  116. Min throughput per process = 116531.62 KB/sec
  117. Max throughput per process = 137000.52 KB/sec
  118. Avg throughput per process = 126790.14 KB/sec
  119. Min xfer = 14270464.00 KB
  120. CPU utilization: Wall time 127.746 CPU time 64.938 CPU utilization 50.83 %
  121.  
  122.  
  123. Children see throughput for 8 pread readers = 3666070.88 KB/sec
  124. Parent sees throughput for 8 pread readers = 3661134.10 KB/sec
  125. Min throughput per process = 315554.53 KB/sec
  126. Max throughput per process = 544557.19 KB/sec
  127. Avg throughput per process = 458258.86 KB/sec
  128. Min xfer = 9723776.00 KB
  129. CPU utilization: Wall time 30.868 CPU time 43.161 CPU utilization 139.82 %
  130.  
  131.  
  132. Children see throughput for 8 fwriters = 1888017.75 KB/sec
  133. Parent sees throughput for 8 fwriters = 1748797.56 KB/sec
  134. Min throughput per process = 223181.62 KB/sec
  135. Max throughput per process = 256585.09 KB/sec
  136. Avg throughput per process = 236002.22 KB/sec
  137. Min xfer = 16777216.00 KB
  138. CPU utilization: Wall time 75.173 CPU time 66.390 CPU utilization 88.32 %
  139.  
  140.  
  141. Children see throughput for 8 freaders = 3401337.72 KB/sec
  142. Parent sees throughput for 8 freaders = 3367719.72 KB/sec
  143. Min throughput per process = 420973.69 KB/sec
  144. Max throughput per process = 429304.81 KB/sec
  145. Avg throughput per process = 425167.21 KB/sec
  146. Min xfer = 16777216.00 KB
  147. CPU utilization: Wall time 39.853 CPU time 74.073 CPU utilization 185.86 %
  148.  
  149.  
  150.  
  151.  
  152. "Throughput report Y-axis is type of test X-axis is number of processes"
  153. "Record size = 128 Kbytes "
  154. "Output is in Kbytes/sec"
  155.  
  156. " Initial write " 2108641.94
  157.  
  158. " Rewrite " 1926105.30
  159.  
  160. " Read " 3436913.00
  161.  
  162. " Re-read " 3551873.88
  163.  
  164. " Reverse Read " 3486933.75
  165.  
  166. " Stride read " 3304420.69
  167.  
  168. " Random read " 1829319.41
  169.  
  170. " Mixed workload " 661635.17
  171.  
  172. " Random write " 596152.74
  173.  
  174. " Pwrite " 1014321.10
  175.  
  176. " Pread " 3666070.88
  177.  
  178. " Fwrite " 1888017.75
  179.  
  180. " Fread " 3401337.72
  181.  
  182.  
  183. "CPU utilization report Y-axis is type of test X-axis is number of processes"
  184. "Record size = 128 Kbytes "
  185. "Output is in CPU%"
  186.  
  187. " Initial write " 99.62
  188.  
  189. " Rewrite " 93.64
  190.  
  191. " Read " 168.51
  192.  
  193. " Re-read " 170.63
  194.  
  195. " Reverse Read " 166.79
  196.  
  197. " Stride read " 195.96
  198.  
  199. " Random read " 47.31
  200.  
  201. " Mixed workload " 26.14
  202.  
  203. " Random write " 32.79
  204.  
  205. " Pwrite " 50.83
  206.  
  207. " Pread " 139.82
  208.  
  209. " Fwrite " 88.32
  210.  
  211. " Fread " 185.86
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