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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 17:06:35 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 = 405824.09 KB/sec
  34. Parent sees throughput for 8 initial writers = 390381.93 KB/sec
  35. Min throughput per process = 49716.00 KB/sec
  36. Max throughput per process = 52125.49 KB/sec
  37. Avg throughput per process = 50728.01 KB/sec
  38. Min xfer = 16001792.00 KB
  39. CPU Utilization: Wall time 333.075 CPU time 59.111 CPU utilization 17.75 %
  40.  
  41.  
  42. Children see throughput for 8 rewriters = 371970.54 KB/sec
  43. Parent sees throughput for 8 rewriters = 362689.18 KB/sec
  44. Min throughput per process = 46111.10 KB/sec
  45. Max throughput per process = 47231.80 KB/sec
  46. Avg throughput per process = 46496.32 KB/sec
  47. Min xfer = 16379136.00 KB
  48. CPU utilization: Wall time 355.210 CPU time 48.042 CPU utilization 13.52 %
  49.  
  50.  
  51. Children see throughput for 8 readers = 931345.70 KB/sec
  52. Parent sees throughput for 8 readers = 931337.51 KB/sec
  53. Min throughput per process = 116332.76 KB/sec
  54. Max throughput per process = 116603.21 KB/sec
  55. Avg throughput per process = 116418.21 KB/sec
  56. Min xfer = 16738432.00 KB
  57. CPU utilization: Wall time 143.884 CPU time 23.987 CPU utilization 16.67 %
  58.  
  59.  
  60. Children see throughput for 8 re-readers = 935275.84 KB/sec
  61. Parent sees throughput for 8 re-readers = 935266.17 KB/sec
  62. Min throughput per process = 116785.28 KB/sec
  63. Max throughput per process = 117030.05 KB/sec
  64. Avg throughput per process = 116909.48 KB/sec
  65. Min xfer = 16742272.00 KB
  66. CPU utilization: Wall time 143.360 CPU time 23.901 CPU utilization 16.67 %
  67.  
  68.  
  69. Children see throughput for 8 reverse readers = 1446787.64 KB/sec
  70. Parent sees throughput for 8 reverse readers = 1446772.63 KB/sec
  71. Min throughput per process = 180525.58 KB/sec
  72. Max throughput per process = 181442.83 KB/sec
  73. Avg throughput per process = 180848.46 KB/sec
  74. Min xfer = 16692480.00 KB
  75. CPU utilization: Wall time 92.467 CPU time 23.646 CPU utilization 25.57 %
  76.  
  77.  
  78. Children see throughput for 8 stride readers = 1160102.80 KB/sec
  79. Parent sees throughput for 8 stride readers = 1160072.80 KB/sec
  80. Min throughput per process = 144760.30 KB/sec
  81. Max throughput per process = 145245.95 KB/sec
  82. Avg throughput per process = 145012.85 KB/sec
  83. Min xfer = 16721152.00 KB
  84. CPU utilization: Wall time 115.510 CPU time 22.106 CPU utilization 19.14 %
  85.  
  86.  
  87. Children see throughput for 8 random readers = 1099076.20 KB/sec
  88. Parent sees throughput for 8 random readers = 1099049.92 KB/sec
  89. Min throughput per process = 136959.55 KB/sec
  90. Max throughput per process = 137940.88 KB/sec
  91. Avg throughput per process = 137384.53 KB/sec
  92. Min xfer = 16657920.00 KB
  93. CPU utilization: Wall time 121.629 CPU time 22.036 CPU utilization 18.12 %
  94.  
  95.  
  96. Children see throughput for 8 mixed workload = 183825.84 KB/sec
  97. Parent sees throughput for 8 mixed workload = 175799.10 KB/sec
  98. Min throughput per process = 10250.95 KB/sec
  99. Max throughput per process = 37382.64 KB/sec
  100. Avg throughput per process = 22978.23 KB/sec
  101. Min xfer = 4602112.00 KB
  102. CPU utilization: Wall time 467.948 CPU time 27.367 CPU utilization 5.85 %
  103.  
  104.  
  105. Children see throughput for 8 random writers = 145954.62 KB/sec
  106. Parent sees throughput for 8 random writers = 139245.13 KB/sec
  107. Min throughput per process = 17399.92 KB/sec
  108. Max throughput per process = 19198.78 KB/sec
  109. Avg throughput per process = 18244.33 KB/sec
  110. Min xfer = 15205248.00 KB
  111. CPU utilization: Wall time 914.911 CPU time 74.126 CPU utilization 8.10 %
  112.  
  113.  
  114. Children see throughput for 8 pwrite writers = 280618.98 KB/sec
  115. Parent sees throughput for 8 pwrite writers = 268587.36 KB/sec
  116. Min throughput per process = 33986.99 KB/sec
  117. Max throughput per process = 36888.92 KB/sec
  118. Avg throughput per process = 35077.37 KB/sec
  119. Min xfer = 15457408.00 KB
  120. CPU utilization: Wall time 473.713 CPU time 57.925 CPU utilization 12.23 %
  121.  
  122.  
  123. Children see throughput for 8 pread readers = 911479.59 KB/sec
  124. Parent sees throughput for 8 pread readers = 911474.72 KB/sec
  125. Min throughput per process = 113578.72 KB/sec
  126. Max throughput per process = 114151.95 KB/sec
  127. Avg throughput per process = 113934.95 KB/sec
  128. Min xfer = 16692992.00 KB
  129. CPU utilization: Wall time 146.973 CPU time 23.632 CPU utilization 16.08 %
  130.  
  131.  
  132. Children see throughput for 8 fwriters = 403223.26 KB/sec
  133. Parent sees throughput for 8 fwriters = 387425.35 KB/sec
  134. Min throughput per process = 48751.56 KB/sec
  135. Max throughput per process = 53145.38 KB/sec
  136. Avg throughput per process = 50402.91 KB/sec
  137. Min xfer = 16777216.00 KB
  138. CPU utilization: Wall time 344.137 CPU time 58.915 CPU utilization 17.12 %
  139.  
  140.  
  141. Children see throughput for 8 freaders = 930824.82 KB/sec
  142. Parent sees throughput for 8 freaders = 924683.67 KB/sec
  143. Min throughput per process = 115585.84 KB/sec
  144. Max throughput per process = 117788.10 KB/sec
  145. Avg throughput per process = 116353.10 KB/sec
  146. Min xfer = 16777216.00 KB
  147. CPU utilization: Wall time 145.149 CPU time 30.530 CPU utilization 21.03 %
  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 " 405824.09
  157.  
  158. " Rewrite " 371970.54
  159.  
  160. " Read " 931345.70
  161.  
  162. " Re-read " 935275.84
  163.  
  164. " Reverse Read " 1446787.64
  165.  
  166. " Stride read " 1160102.80
  167.  
  168. " Random read " 1099076.20
  169.  
  170. " Mixed workload " 183825.84
  171.  
  172. " Random write " 145954.62
  173.  
  174. " Pwrite " 280618.98
  175.  
  176. " Pread " 911479.59
  177.  
  178. " Fwrite " 403223.26
  179.  
  180. " Fread " 930824.82
  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 " 17.75
  188.  
  189. " Rewrite " 13.52
  190.  
  191. " Read " 16.67
  192.  
  193. " Re-read " 16.67
  194.  
  195. " Reverse Read " 25.57
  196.  
  197. " Stride read " 19.14
  198.  
  199. " Random read " 18.12
  200.  
  201. " Mixed workload " 5.85
  202.  
  203. " Random write " 8.10
  204.  
  205. " Pwrite " 12.23
  206.  
  207. " Pread " 16.08
  208.  
  209. " Fwrite " 17.12
  210.  
  211. " Fread " 21.03
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