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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 05:13:59 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 /data/0 /data/1 /data/2 /data/3 /data/4 /data/5 /data/6 /data/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 = 497817.21 KB/sec
  34. Parent sees throughput for 8 initial writers = 481353.21 KB/sec
  35. Min throughput per process = 60812.71 KB/sec
  36. Max throughput per process = 63396.01 KB/sec
  37. Avg throughput per process = 62227.15 KB/sec
  38. Min xfer = 16093568.00 KB
  39. CPU Utilization: Wall time 270.807 CPU time 58.883 CPU utilization 21.74 %
  40.  
  41.  
  42. Children see throughput for 8 rewriters = 477291.55 KB/sec
  43. Parent sees throughput for 8 rewriters = 453293.25 KB/sec
  44. Min throughput per process = 58606.59 KB/sec
  45. Max throughput per process = 61363.39 KB/sec
  46. Avg throughput per process = 59661.44 KB/sec
  47. Min xfer = 16023552.00 KB
  48. CPU utilization: Wall time 273.412 CPU time 41.123 CPU utilization 15.04 %
  49.  
  50.  
  51. Children see throughput for 8 readers = 1122000.50 KB/sec
  52. Parent sees throughput for 8 readers = 1121984.02 KB/sec
  53. Min throughput per process = 139570.39 KB/sec
  54. Max throughput per process = 141800.22 KB/sec
  55. Avg throughput per process = 140250.06 KB/sec
  56. Min xfer = 16513408.00 KB
  57. CPU utilization: Wall time 118.317 CPU time 24.224 CPU utilization 20.47 %
  58.  
  59.  
  60. Children see throughput for 8 re-readers = 1124022.00 KB/sec
  61. Parent sees throughput for 8 re-readers = 1123997.60 KB/sec
  62. Min throughput per process = 139619.98 KB/sec
  63. Max throughput per process = 141912.28 KB/sec
  64. Avg throughput per process = 140502.75 KB/sec
  65. Min xfer = 16506496.00 KB
  66. CPU utilization: Wall time 118.225 CPU time 23.696 CPU utilization 20.04 %
  67.  
  68.  
  69. Children see throughput for 8 reverse readers = 1715017.12 KB/sec
  70. Parent sees throughput for 8 reverse readers = 1714976.40 KB/sec
  71. Min throughput per process = 213161.25 KB/sec
  72. Max throughput per process = 217172.11 KB/sec
  73. Avg throughput per process = 214377.14 KB/sec
  74. Min xfer = 16467840.00 KB
  75. CPU utilization: Wall time 77.256 CPU time 21.267 CPU utilization 27.53 %
  76.  
  77.  
  78. Children see throughput for 8 stride readers = 1436130.30 KB/sec
  79. Parent sees throughput for 8 stride readers = 1436102.55 KB/sec
  80. Min throughput per process = 178664.72 KB/sec
  81. Max throughput per process = 181429.08 KB/sec
  82. Avg throughput per process = 179516.29 KB/sec
  83. Min xfer = 16521984.00 KB
  84. CPU utilization: Wall time 92.475 CPU time 21.775 CPU utilization 23.55 %
  85.  
  86.  
  87. Children see throughput for 8 random readers = 1387792.25 KB/sec
  88. Parent sees throughput for 8 random readers = 1387749.10 KB/sec
  89. Min throughput per process = 172222.12 KB/sec
  90. Max throughput per process = 175923.70 KB/sec
  91. Avg throughput per process = 173474.03 KB/sec
  92. Min xfer = 16424448.00 KB
  93. CPU utilization: Wall time 95.369 CPU time 22.301 CPU utilization 23.38 %
  94.  
  95.  
  96. Avg throughput per process = 62227.15 KB/sec
  97. Min xfer = 16093568.00 KB
  98. CPU Utilization: Wall time 270.807 CPU time 58.883 CPU utilization 21.74 %
  99.  
  100.  
  101. Children see throughput for 8 rewriters = 477291.55 KB/sec
  102. Parent sees throughput for 8 rewriters = 453293.25 KB/sec
  103. Min throughput per process = 58606.59 KB/sec
  104. Max throughput per process = 61363.39 KB/sec
  105. Avg throughput per process = 59661.44 KB/sec
  106. Min xfer = 16023552.00 KB
  107. CPU utilization: Wall time 273.412 CPU time 41.123 CPU utilization 15.04 %
  108.  
  109.  
  110. Children see throughput for 8 readers = 1122000.50 KB/sec
  111. Parent sees throughput for 8 readers = 1121984.02 KB/sec
  112. Min throughput per process = 139570.39 KB/sec
  113. Max throughput per process = 141800.22 KB/sec
  114. Avg throughput per process = 140250.06 KB/sec
  115. Min xfer = 16513408.00 KB
  116. CPU utilization: Wall time 118.317 CPU time 24.224 CPU utilization 20.47 %
  117.  
  118.  
  119. Children see throughput for 8 re-readers = 1124022.00 KB/sec
  120. Parent sees throughput for 8 re-readers = 1123997.60 KB/sec
  121. Min throughput per process = 139619.98 KB/sec
  122. Max throughput per process = 141912.28 KB/sec
  123. Avg throughput per process = 140502.75 KB/sec
  124. Min xfer = 16506496.00 KB
  125. CPU utilization: Wall time 118.225 CPU time 23.696 CPU utilization 20.04 %
  126.  
  127.  
  128. Children see throughput for 8 reverse readers = 1715017.12 KB/sec
  129. Parent sees throughput for 8 reverse readers = 1714976.40 KB/sec
  130. Min throughput per process = 213161.25 KB/sec
  131. Max throughput per process = 217172.11 KB/sec
  132. Avg throughput per process = 214377.14 KB/sec
  133. Min xfer = 16467840.00 KB
  134. CPU utilization: Wall time 77.256 CPU time 21.267 CPU utilization 27.53 %
  135.  
  136.  
  137. Children see throughput for 8 stride readers = 1436130.30 KB/sec
  138. Parent sees throughput for 8 stride readers = 1436102.55 KB/sec
  139. Min throughput per process = 178664.72 KB/sec
  140. Max throughput per process = 181429.08 KB/sec
  141. Avg throughput per process = 179516.29 KB/sec
  142. Min xfer = 16521984.00 KB
  143. CPU utilization: Wall time 92.475 CPU time 21.775 CPU utilization 23.55 %
  144.  
  145.  
  146. Children see throughput for 8 random readers = 1387792.25 KB/sec
  147. Parent sees throughput for 8 random readers = 1387749.10 KB/sec
  148. Min throughput per process = 172222.12 KB/sec
  149. Max throughput per process = 175923.70 KB/sec
  150. Avg throughput per process = 173474.03 KB/sec
  151. Min xfer = 16424448.00 KB
  152. CPU utilization: Wall time 95.369 CPU time 22.301 CPU utilization 23.38 %
  153.  
  154.  
  155. Children see throughput for 8 mixed workload = 515255.71 KB/sec
  156. Parent sees throughput for 8 mixed workload = 492301.75 KB/sec
  157. Min throughput per process = 17676.29 KB/sec
  158. Max throughput per process = 114791.40 KB/sec
  159. Avg throughput per process = 64406.96 KB/sec
  160. Min xfer = 2584064.00 KB
  161. CPU utilization: Wall time 151.308 CPU time 24.712 CPU utilization 16.33 %
  162.  
  163.  
  164. Children see throughput for 8 random writers = 459373.02 KB/sec
  165. Parent sees throughput for 8 random writers = 433159.18 KB/sec
  166. Min throughput per process = 55025.73 KB/sec
  167. Max throughput per process = 59867.09 KB/sec
  168. Avg throughput per process = 57421.63 KB/sec
  169. Min xfer = 15420416.00 KB
  170. CPU utilization: Wall time 295.313 CPU time 66.378 CPU utilization 22.48 %
  171.  
  172.  
  173. Children see throughput for 8 pwrite writers = 494440.49 KB/sec
  174. Parent sees throughput for 8 pwrite writers = 462746.74 KB/sec
  175. Min throughput per process = 59595.11 KB/sec
  176. Max throughput per process = 65226.93 KB/sec
  177. Avg throughput per process = 61805.06 KB/sec
  178. Min xfer = 15328640.00 KB
  179. CPU utilization: Wall time 272.396 CPU time 60.462 CPU utilization 22.20 %
  180.  
  181.  
  182. Children see throughput for 8 pread readers = 1116138.08 KB/sec
  183. Parent sees throughput for 8 pread readers = 1116127.00 KB/sec
  184. Min throughput per process = 138935.39 KB/sec
  185. Max throughput per process = 139916.45 KB/sec
  186. Avg throughput per process = 139517.26 KB/sec
  187. Min xfer = 16659584.00 KB
  188. CPU utilization: Wall time 119.910 CPU time 23.720 CPU utilization 19.78 %
  189.  
  190.  
  191. Children see throughput for 8 fwriters = 501687.19 KB/sec
  192. Parent sees throughput for 8 fwriters = 488539.89 KB/sec
  193. Min throughput per process = 61524.95 KB/sec
  194. Max throughput per process = 64177.54 KB/sec
  195. Avg throughput per process = 62710.90 KB/sec
  196. Min xfer = 16777216.00 KB
  197. CPU utilization: Wall time 272.690 CPU time 62.307 CPU utilization 22.85 %
  198.  
  199.  
  200. Children see throughput for 8 freaders = 1113525.17 KB/sec
  201. Parent sees throughput for 8 freaders = 1108933.43 KB/sec
  202. Min throughput per process = 138619.47 KB/sec
  203. Max throughput per process = 139399.89 KB/sec
  204. Avg throughput per process = 139190.65 KB/sec
  205. Min xfer = 16777216.00 KB
  206. CPU utilization: Wall time 121.031 CPU time 32.532 CPU utilization 26.88 %
  207.  
  208.  
  209.  
  210.  
  211. "Throughput report Y-axis is type of test X-axis is number of processes"
  212. "Record size = 128 Kbytes "
  213. "Output is in Kbytes/sec"
  214.  
  215. " Initial write " 497817.21
  216.  
  217. " Rewrite " 477291.55
  218.  
  219. " Read " 1122000.50
  220.  
  221. " Re-read " 1124022.00
  222.  
  223. " Reverse Read " 1715017.12
  224.  
  225. " Stride read " 1436130.30
  226.  
  227. " Random read " 1387792.25
  228.  
  229. " Mixed workload " 515255.71
  230.  
  231. " Random write " 459373.02
  232.  
  233. " Pwrite " 494440.49
  234.  
  235. " Pread " 1116138.08
  236.  
  237. " Fwrite " 501687.19
  238.  
  239. " Fread " 1113525.17
  240.  
  241.  
  242. "CPU utilization report Y-axis is type of test X-axis is number of processes"
  243. "Record size = 128 Kbytes "
  244. "Output is in CPU%"
  245.  
  246. " Initial write " 21.74
  247.  
  248. " Rewrite " 15.04
  249.  
  250. " Read " 20.47
  251.  
  252. " Re-read " 20.04
  253.  
  254. " Reverse Read " 27.53
  255.  
  256. " Stride read " 23.55
  257.  
  258. " Random read " 23.38
  259.  
  260. " Mixed workload " 16.33
  261.  
  262. " Random write " 22.48
  263.  
  264. " Pwrite " 22.20
  265.  
  266. " Pread " 19.78
  267.  
  268. " Fwrite " 22.85
  269.  
  270. " Fread " 26.88
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