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Tiran

Python 3.4, GCC profile guided optimization

Tiran
Dec 27th, 2013
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  1. Report on Linux hamiller 3.8.0-27-generic #40-Ubuntu SMP Tue Jul 9 00:17:05 UTC 2013 x86_64 x86_64
  2. Total CPU cores: 8
  3.  
  4. ### 2to3 ###
  5. 0.676000 -> 0.572000: 1.18x faster
  6.  
  7. ### call_method ###
  8. Min: 0.407632 -> 0.358865: 1.14x faster
  9. Avg: 0.408375 -> 0.360468: 1.13x faster
  10. Significant (t=93.53)
  11. Stddev: 0.00039 -> 0.00194: 4.9664x larger
  12.  
  13. ### call_method_slots ###
  14. Min: 0.404839 -> 0.358827: 1.13x faster
  15. Avg: 0.405424 -> 0.359500: 1.13x faster
  16. Significant (t=155.31)
  17. Stddev: 0.00101 -> 0.00055: 1.8336x smaller
  18.  
  19. ### call_method_unknown ###
  20. Min: 0.400497 -> 0.370897: 1.08x faster
  21. Avg: 0.400898 -> 0.371377: 1.08x faster
  22. Significant (t=162.69)
  23. Stddev: 0.00041 -> 0.00057: 1.3836x larger
  24.  
  25. ### call_simple ###
  26. Min: 0.279978 -> 0.296934: 1.06x slower
  27. Avg: 0.280212 -> 0.297357: 1.06x slower
  28. Significant (t=-137.96)
  29. Stddev: 0.00031 -> 0.00037: 1.1817x larger
  30.  
  31. ### chaos ###
  32. Min: 0.417752 -> 0.347740: 1.20x faster
  33. Avg: 0.418590 -> 0.348321: 1.20x faster
  34. Significant (t=164.22)
  35. Stddev: 0.00058 -> 0.00076: 1.3292x larger
  36.  
  37. ### django_v2 ###
  38. Min: 0.849872 -> 0.718769: 1.18x faster
  39. Avg: 0.851453 -> 0.719756: 1.18x faster
  40. Significant (t=158.52)
  41. Stddev: 0.00174 -> 0.00065: 2.6829x smaller
  42.  
  43. ### etree_generate ###
  44. Min: 0.454712 -> 0.346760: 1.31x faster
  45. Avg: 0.459146 -> 0.348185: 1.32x faster
  46. Significant (t=62.83)
  47. Stddev: 0.00356 -> 0.00171: 2.0813x smaller
  48.  
  49. ### etree_iterparse ###
  50. Min: 0.673827 -> 0.541703: 1.24x faster
  51. Avg: 0.675638 -> 0.543534: 1.24x faster
  52. Significant (t=185.23)
  53. Stddev: 0.00112 -> 0.00113: 1.0122x larger
  54.  
  55. ### etree_parse ###
  56. Min: 0.435573 -> 0.415799: 1.05x faster
  57. Avg: 0.436604 -> 0.417081: 1.05x faster
  58. Significant (t=17.92)
  59. Stddev: 0.00181 -> 0.00163: 1.1140x smaller
  60.  
  61. ### etree_process ###
  62. Min: 0.361813 -> 0.287116: 1.26x faster
  63. Avg: 0.363511 -> 0.288922: 1.26x faster
  64. Significant (t=49.29)
  65. Stddev: 0.00296 -> 0.00164: 1.8070x smaller
  66.  
  67. ### fannkuch ###
  68. Min: 1.590986 -> 1.232648: 1.29x faster
  69. Avg: 1.593526 -> 1.233930: 1.29x faster
  70. Significant (t=292.90)
  71. Stddev: 0.00246 -> 0.00123: 2.0054x smaller
  72.  
  73. ### fastpickle ###
  74. Min: 0.620336 -> 0.537644: 1.15x faster
  75. Avg: 0.621146 -> 0.537974: 1.15x faster
  76. Significant (t=238.39)
  77. Stddev: 0.00068 -> 0.00039: 1.7432x smaller
  78.  
  79. ### fastunpickle ###
  80. Min: 0.838726 -> 0.732388: 1.15x faster
  81. Avg: 0.840097 -> 0.733033: 1.15x faster
  82. Significant (t=180.04)
  83. Stddev: 0.00099 -> 0.00088: 1.1253x smaller
  84.  
  85. ### float ###
  86. Min: 0.379387 -> 0.357092: 1.06x faster
  87. Avg: 0.383728 -> 0.360218: 1.07x faster
  88. Significant (t=10.02)
  89. Stddev: 0.00404 -> 0.00335: 1.2059x smaller
  90.  
  91. ### formatted_logging ###
  92. Min: 0.426746 -> 0.373434: 1.14x faster
  93. Avg: 0.428168 -> 0.374974: 1.14x faster
  94. Significant (t=43.52)
  95. Stddev: 0.00228 -> 0.00151: 1.5052x smaller
  96.  
  97. ### go ###
  98. Min: 0.757423 -> 0.653459: 1.16x faster
  99. Avg: 0.759275 -> 0.655526: 1.16x faster
  100. Significant (t=111.49)
  101. Stddev: 0.00172 -> 0.00117: 1.4775x smaller
  102.  
  103. ### iterative_count ###
  104. Min: 0.150745 -> 0.145340: 1.04x faster
  105. Avg: 0.150967 -> 0.145425: 1.04x faster
  106. Significant (t=49.01)
  107. Stddev: 0.00024 -> 0.00007: 3.7342x smaller
  108.  
  109. ### json_dump_v2 ###
  110. Min: 3.997449 -> 3.578938: 1.12x faster
  111. Avg: 4.015566 -> 3.581563: 1.12x faster
  112. Significant (t=38.56)
  113. Stddev: 0.02499 -> 0.00298: 8.3900x smaller
  114.  
  115. ### mako ###
  116. Min: 0.064092 -> 0.049936: 1.28x faster
  117. Avg: 0.065241 -> 0.051310: 1.27x faster
  118. Significant (t=59.50)
  119. Stddev: 0.00074 -> 0.00091: 1.2298x larger
  120.  
  121. ### mako_v2 ###
  122. Min: 0.050023 -> 0.043417: 1.15x faster
  123. Avg: 0.051703 -> 0.045001: 1.15x faster
  124. Significant (t=11.28)
  125. Stddev: 0.00376 -> 0.00187: 2.0109x smaller
  126.  
  127. ### meteor_contest ###
  128. Min: 0.290855 -> 0.243637: 1.19x faster
  129. Avg: 0.291666 -> 0.245535: 1.19x faster
  130. Significant (t=53.49)
  131. Stddev: 0.00067 -> 0.00181: 2.6943x larger
  132.  
  133. ### nbody ###
  134. Min: 0.336688 -> 0.327972: 1.03x faster
  135. Avg: 0.340305 -> 0.330024: 1.03x faster
  136. Significant (t=6.59)
  137. Stddev: 0.00317 -> 0.00145: 2.1829x smaller
  138.  
  139. ### normal_startup ###
  140. Min: 0.413518 -> 0.388403: 1.06x faster
  141. Avg: 0.414242 -> 0.389425: 1.06x faster
  142. Significant (t=46.04)
  143. Stddev: 0.00062 -> 0.00103: 1.6758x larger
  144.  
  145. ### nqueens ###
  146. Min: 0.384319 -> 0.321075: 1.20x faster
  147. Avg: 0.385506 -> 0.322880: 1.19x faster
  148. Significant (t=61.30)
  149. Stddev: 0.00101 -> 0.00205: 2.0331x larger
  150.  
  151. ### pathlib ###
  152. Min: 0.144123 -> 0.120646: 1.19x faster
  153. Avg: 0.144645 -> 0.122466: 1.18x faster
  154. Significant (t=56.99)
  155. Stddev: 0.00034 -> 0.00192: 5.6995x larger
  156.  
  157. ### pickle_dict ###
  158. Min: 0.565369 -> 0.487187: 1.16x faster
  159. Avg: 0.565702 -> 0.487798: 1.16x faster
  160. Significant (t=202.31)
  161. Stddev: 0.00041 -> 0.00076: 1.8583x larger
  162.  
  163. ### pickle_list ###
  164. Min: 0.347918 -> 0.281835: 1.23x faster
  165. Avg: 0.351520 -> 0.281973: 1.25x faster
  166. Significant (t=57.50)
  167. Stddev: 0.00270 -> 0.00014: 19.3112x smaller
  168.  
  169. ### pidigits ###
  170. Min: 0.399632 -> 0.378895: 1.05x faster
  171. Avg: 0.402044 -> 0.378990: 1.06x faster
  172. Significant (t=11.91)
  173. Stddev: 0.00433 -> 0.00008: 54.7836x smaller
  174.  
  175. ### raytrace ###
  176. Min: 1.836511 -> 1.578350: 1.16x faster
  177. Avg: 1.848974 -> 1.579335: 1.17x faster
  178. Significant (t=45.86)
  179. Stddev: 0.01313 -> 0.00056: 23.3742x smaller
  180.  
  181. ### regex_compile ###
  182. Min: 0.508040 -> 0.432006: 1.18x faster
  183. Avg: 0.508379 -> 0.433034: 1.17x faster
  184. Significant (t=195.21)
  185. Stddev: 0.00051 -> 0.00070: 1.3723x larger
  186.  
  187. ### regex_effbot ###
  188. Min: 0.067510 -> 0.070988: 1.05x slower
  189. Avg: 0.067581 -> 0.071004: 1.05x slower
  190. Significant (t=-107.71)
  191. Stddev: 0.00007 -> 0.00002: 4.5915x smaller
  192.  
  193. ### richards ###
  194. Min: 0.239919 -> 0.213181: 1.13x faster
  195. Avg: 0.241676 -> 0.216148: 1.12x faster
  196. Significant (t=19.11)
  197. Stddev: 0.00119 -> 0.00274: 2.3068x larger
  198.  
  199. ### silent_logging ###
  200. Min: 0.102271 -> 0.087452: 1.17x faster
  201. Avg: 0.102307 -> 0.087635: 1.17x faster
  202. Significant (t=180.80)
  203. Stddev: 0.00002 -> 0.00018: 7.3247x larger
  204.  
  205. ### simple_logging ###
  206. Min: 0.403716 -> 0.338178: 1.19x faster
  207. Avg: 0.404834 -> 0.338867: 1.19x faster
  208. Significant (t=81.50)
  209. Stddev: 0.00134 -> 0.00122: 1.1035x smaller
  210.  
  211. ### spectral_norm ###
  212. Min: 0.393961 -> 0.385042: 1.02x faster
  213. Avg: 0.394585 -> 0.386131: 1.02x faster
  214. Significant (t=18.45)
  215. Stddev: 0.00074 -> 0.00071: 1.0477x smaller
  216.  
  217. ### startup_nosite ###
  218. Min: 0.246506 -> 0.233453: 1.06x faster
  219. Avg: 0.247257 -> 0.234111: 1.06x faster
  220. Significant (t=61.66)
  221. Stddev: 0.00045 -> 0.00050: 1.1011x larger
  222.  
  223. ### threaded_count ###
  224. Min: 0.146817 -> 0.142613: 1.03x faster
  225. Avg: 0.147200 -> 0.143585: 1.03x faster
  226. Significant (t=9.96)
  227. Stddev: 0.00028 -> 0.00076: 2.7689x larger
  228.  
  229. ### tornado_http ###
  230. Min: 0.345638 -> 0.309638: 1.12x faster
  231. Avg: 0.347353 -> 0.311223: 1.12x faster
  232. Significant (t=34.63)
  233. Stddev: 0.00233 -> 0.00233: 1.0001x larger
  234.  
  235. ### unpack_sequence ###
  236. Min: 0.000062 -> 0.000066: 1.06x slower
  237. Avg: 0.000063 -> 0.000066: 1.06x slower
  238. Significant (t=-114.02)
  239. Stddev: 0.00000 -> 0.00000: 2.0065x smaller
  240.  
  241. The following not significant results are hidden, use -v to show them:
  242. json_dump, json_load, regex_v8, telco, unpickle_list.
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