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  1. $ strace -q -e trace=memory go run main.go
  2. brk(NULL) = 0x286a000
  3. mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f385ca5a000
  4. mmap(NULL, 29611, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f385ca52000
  5. mmap(NULL, 2208904, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f385c61e000
  6. mprotect(0x7f385c635000, 2093056, PROT_NONE) = 0
  7. mmap(0x7f385c834000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x16000) = 0x7f385c834000
  8. mmap(0x7f385c836000, 13448, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f385c836000
  9. mmap(NULL, 3981792, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f385c251000
  10. mprotect(0x7f385c413000, 2097152, PROT_NONE) = 0
  11. mmap(0x7f385c613000, 24576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1c2000) = 0x7f385c613000
  12. mmap(0x7f385c619000, 16864, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f385c619000
  13. mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f385ca51000
  14. mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f385ca4f000
  15. mprotect(0x7f385c613000, 16384, PROT_READ) = 0
  16. mprotect(0x7f385c834000, 4096, PROT_READ) = 0
  17. mprotect(0x7f385ca5b000, 4096, PROT_READ) = 0
  18. munmap(0x7f385ca52000, 29611) = 0
  19. brk(NULL) = 0x286a000
  20. brk(0x288b000) = 0x288b000
  21. mmap(NULL, 262144, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f385ca0f000
  22. mmap(0xc000000000, 67108864, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xc000000000
  23. mmap(0xc000000000, 67108864, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0xc000000000
  24. mmap(NULL, 33554432, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f385a251000
  25. mmap(NULL, 2164736, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f385a040000
  26. mmap(NULL, 65536, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f385c9ff000
  27. mmap(NULL, 65536, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f385c9ef000
  28. mmap(NULL, 8392704, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f385983f000
  29. mprotect(0x7f385983f000, 4096, PROT_NONE) = 0
  30. mmap(NULL, 8392704, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f385903e000
  31. mprotect(0x7f385903e000, 4096, PROT_NONE) = 0
  32. mmap(NULL, 8392704, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f385883d000
  33. mprotect(0x7f385883d000, 4096, PROT_NONE) = 0
  34. mmap(NULL, 262144, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f385c9af000
  35. madvise(0xc0003ee000, 32768, MADV_FREE) = 0
  36. madvise(0xc0003e0000, 49152, MADV_FREE) = 0
  37. madvise(0xc0003dc000, 8192, MADV_FREE) = 0
  38. mmap(NULL, 8392704, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38537ff000
  39. mprotect(0x7f38537ff000, 4096, PROT_NONE) = 0
  40. madvise(0xc0004c4000, 8192, MADV_FREE) = 0
  41. madvise(0xc0004c0000, 8192, MADV_FREE) = 0
  42. madvise(0xc0004b8000, 16384, MADV_FREE) = 0
  43. mmap(NULL, 8392704, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3852ffe000
  44. mprotect(0x7f3852ffe000, 4096, PROT_NONE) = 0
  45. madvise(0xc00049e000, 8192, MADV_FREE) = 0
  46. madvise(0xc000496000, 16384, MADV_FREE) = 0
  47. madvise(0xc000492000, 8192, MADV_FREE) = 0
  48. madvise(0xc00048e000, 16384, MADV_FREE) = 0
  49. madvise(0xc000486000, 16384, MADV_FREE) = 0
  50. madvise(0xc000480000, 16384, MADV_FREE) = 0
  51. madvise(0xc00047c000, 8192, MADV_FREE) = 0
  52. madvise(0xc000478000, 8192, MADV_FREE) = 0
  53. madvise(0xc000470000, 24576, MADV_FREE) = 0
  54. madvise(0xc00045c000, 8192, MADV_FREE) = 0
  55. madvise(0xc00045a000, 8192, MADV_FREE) = 0
  56. madvise(0xc00044a000, 8192, MADV_FREE) = 0
  57. madvise(0xc000440000, 8192, MADV_FREE) = 0
  58. madvise(0xc00043a000, 8192, MADV_FREE) = 0
  59. madvise(0xc00042e000, 8192, MADV_FREE) = 0
  60. madvise(0xc0003b6000, 16384, MADV_FREE) = 0
  61. madvise(0xc0003ae000, 8192, MADV_FREE) = 0
  62. madvise(0xc0003aa000, 16384, MADV_FREE) = 0
  63. madvise(0xc00039a000, 8192, MADV_FREE) = 0
  64. madvise(0xc000386000, 8192, MADV_FREE) = 0
  65. madvise(0xc000382000, 8192, MADV_FREE) = 0
  66. madvise(0xc00037c000, 16384, MADV_FREE) = 0
  67. madvise(0xc000378000, 8192, MADV_FREE) = 0
  68. mmap(NULL, 1439992, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3852e9e000
  69. madvise(0xc000374000, 16384, MADV_FREE) = 0
  70. madvise(0xc000366000, 8192, MADV_FREE) = 0
  71. madvise(0xc000360000, 8192, MADV_FREE) = 0
  72. madvise(0xc000358000, 16384, MADV_FREE) = 0
  73. madvise(0xc000350000, 16384, MADV_FREE) = 0
  74. madvise(0xc00034c000, 8192, MADV_FREE) = 0
  75. madvise(0xc000346000, 16384, MADV_FREE) = 0
  76. madvise(0xc000340000, 8192, MADV_FREE) = 0
  77. madvise(0xc00033a000, 8192, MADV_FREE) = 0
  78. madvise(0xc000330000, 24576, MADV_FREE) = 0
  79. madvise(0xc00032c000, 8192, MADV_FREE) = 0
  80. madvise(0xc00031c000, 8192, MADV_FREE) = 0
  81. madvise(0xc000318000, 8192, MADV_FREE) = 0
  82. madvise(0xc000314000, 8192, MADV_FREE) = 0
  83. madvise(0xc00030c000, 24576, MADV_FREE) = 0
  84. madvise(0xc000304000, 8192, MADV_FREE) = 0
  85. madvise(0xc000302000, 8192, MADV_FREE) = 0
  86. madvise(0xc0002fe000, 8192, MADV_FREE) = 0
  87. madvise(0xc0002f8000, 16384, MADV_FREE) = 0
  88. madvise(0xc0002f6000, 8192, MADV_FREE) = 0
  89. madvise(0xc0002f2000, 8192, MADV_FREE) = 0
  90. madvise(0xc0002ee000, 8192, MADV_FREE) = 0
  91. madvise(0xc0002e4000, 8192, MADV_FREE) = 0
  92. madvise(0xc0002e0000, 16384, MADV_FREE) = 0
  93. madvise(0xc0002da000, 16384, MADV_FREE) = 0
  94. madvise(0xc0002ce000, 8192, MADV_FREE) = 0
  95. madvise(0xc0002c8000, 16384, MADV_FREE) = 0
  96. madvise(0xc0002ba000, 8192, MADV_FREE) = 0
  97. madvise(0xc0002aa000, 24576, MADV_FREE) = 0
  98. madvise(0xc00028e000, 8192, MADV_FREE) = 0
  99. madvise(0xc00028a000, 8192, MADV_FREE) = 0
  100. madvise(0xc000286000, 8192, MADV_FREE) = 0
  101. madvise(0xc00027c000, 16384, MADV_FREE) = 0
  102. madvise(0xc000278000, 8192, MADV_FREE) = 0
  103. madvise(0xc000272000, 16384, MADV_FREE) = 0
  104. madvise(0xc000266000, 8192, MADV_FREE) = 0
  105. madvise(0xc000262000, 16384, MADV_FREE) = 0
  106. madvise(0xc00025e000, 8192, MADV_FREE) = 0
  107. madvise(0xc00025a000, 8192, MADV_FREE) = 0
  108. madvise(0xc000258000, 8192, MADV_FREE) = 0
  109. madvise(0xc00024c000, 8192, MADV_FREE) = 0
  110. madvise(0xc000222000, 16384, MADV_FREE) = 0
  111. madvise(0xc00021c000, 8192, MADV_FREE) = 0
  112. madvise(0xc000218000, 8192, MADV_FREE) = 0
  113. madvise(0xc0001da000, 16384, MADV_FREE) = 0
  114. madvise(0xc0001d8000, 8192, MADV_FREE) = 0
  115. madvise(0xc0001d0000, 24576, MADV_FREE) = 0
  116. madvise(0xc0001ca000, 16384, MADV_FREE) = 0
  117. madvise(0xc0001c6000, 8192, MADV_FREE) = 0
  118. madvise(0xc0008a6000, 8192, MADV_FREE) = 0
  119. madvise(0xc00089e000, 32768, MADV_FREE) = 0
  120. madvise(0xc000876000, 81920, MADV_FREE) = 0
  121. madvise(0xc000870000, 24576, MADV_FREE) = 0
  122. madvise(0xc00086a000, 24576, MADV_FREE) = 0
  123. madvise(0xc00085e000, 16384, MADV_FREE) = 0
  124. madvise(0xc000858000, 24576, MADV_FREE) = 0
  125. madvise(0xc000852000, 24576, MADV_FREE) = 0
  126. madvise(0xc00084e000, 16384, MADV_FREE) = 0
  127. madvise(0xc00084a000, 16384, MADV_FREE) = 0
  128. madvise(0xc000844000, 24576, MADV_FREE) = 0
  129. madvise(0xc000842000, 8192, MADV_FREE) = 0
  130. madvise(0xc000840000, 8192, MADV_FREE) = 0
  131. madvise(0xc00083e000, 8192, MADV_FREE) = 0
  132. madvise(0xc00083a000, 16384, MADV_FREE) = 0
  133. madvise(0xc000830000, 8192, MADV_FREE) = 0
  134. madvise(0xc000822000, 32768, MADV_FREE) = 0
  135. madvise(0xc0007a4000, 24576, MADV_FREE) = 0
  136. madvise(0xc0007a2000, 8192, MADV_FREE) = 0
  137. madvise(0xc00079a000, 8192, MADV_FREE) = 0
  138. madvise(0xc000780000, 8192, MADV_FREE) = 0
  139. madvise(0xc00077e000, 8192, MADV_FREE) = 0
  140. madvise(0xc00077c000, 8192, MADV_FREE) = 0
  141. madvise(0xc00077a000, 8192, MADV_FREE) = 0
  142. madvise(0xc000768000, 8192, MADV_FREE) = 0
  143. madvise(0xc00075e000, 8192, MADV_FREE) = 0
  144. madvise(0xc00075a000, 16384, MADV_FREE) = 0
  145. madvise(0xc000754000, 24576, MADV_FREE) = 0
  146. madvise(0xc00074c000, 32768, MADV_FREE) = 0
  147. madvise(0xc00074a000, 8192, MADV_FREE) = 0
  148. madvise(0xc000744000, 24576, MADV_FREE) = 0
  149. madvise(0xc000742000, 8192, MADV_FREE) = 0
  150. madvise(0xc000740000, 8192, MADV_FREE) = 0
  151. madvise(0xc00073c000, 16384, MADV_FREE) = 0
  152. madvise(0xc000736000, 24576, MADV_FREE) = 0
  153. madvise(0xc000730000, 24576, MADV_FREE) = 0
  154. madvise(0xc00072c000, 16384, MADV_FREE) = 0
  155. madvise(0xc00072a000, 8192, MADV_FREE) = 0
  156. madvise(0xc000724000, 24576, MADV_FREE) = 0
  157. madvise(0xc00071e000, 24576, MADV_FREE) = 0
  158. madvise(0xc00071a000, 16384, MADV_FREE) = 0
  159. madvise(0xc000714000, 24576, MADV_FREE) = 0
  160. madvise(0xc00070e000, 24576, MADV_FREE) = 0
  161. madvise(0xc00070a000, 16384, MADV_FREE) = 0
  162. madvise(0xc000706000, 16384, MADV_FREE) = 0
  163. madvise(0xc000702000, 16384, MADV_FREE) = 0
  164. madvise(0xc0006fe000, 16384, MADV_FREE) = 0
  165. madvise(0xc0006fa000, 16384, MADV_FREE) = 0
  166. madvise(0xc0006f4000, 24576, MADV_FREE) = 0
  167. madvise(0xc0006f2000, 8192, MADV_FREE) = 0
  168. madvise(0xc0006f0000, 8192, MADV_FREE) = 0
  169. madvise(0xc0006ec000, 16384, MADV_FREE) = 0
  170. madvise(0xc0006e6000, 24576, MADV_FREE) = 0
  171. madvise(0xc0006e0000, 24576, MADV_FREE) = 0
  172. madvise(0xc0006de000, 8192, MADV_FREE) = 0
  173. madvise(0xc0006dc000, 8192, MADV_FREE) = 0
  174. madvise(0xc0006d8000, 16384, MADV_FREE) = 0
  175. madvise(0xc0006d4000, 16384, MADV_FREE) = 0
  176. madvise(0xc0006d2000, 8192, MADV_FREE) = 0
  177. madvise(0xc0006ce000, 16384, MADV_FREE) = 0
  178. madvise(0xc0006c8000, 24576, MADV_FREE) = 0
  179. madvise(0xc0006c4000, 16384, MADV_FREE) = 0
  180. madvise(0xc0006c0000, 16384, MADV_FREE) = 0
  181. madvise(0xc0006bc000, 16384, MADV_FREE) = 0
  182. madvise(0xc0006b6000, 24576, MADV_FREE) = 0
  183. madvise(0xc0006b2000, 16384, MADV_FREE) = 0
  184. madvise(0xc0006ae000, 16384, MADV_FREE) = 0
  185. madvise(0xc0006a8000, 24576, MADV_FREE) = 0
  186. madvise(0xc0006a2000, 24576, MADV_FREE) = 0
  187. madvise(0xc00069e000, 16384, MADV_FREE) = 0
  188. madvise(0xc00069a000, 16384, MADV_FREE) = 0
  189. madvise(0xc000698000, 8192, MADV_FREE) = 0
  190. madvise(0xc000694000, 16384, MADV_FREE) = 0
  191. madvise(0xc000692000, 8192, MADV_FREE) = 0
  192. madvise(0xc000666000, 16384, MADV_FREE) = 0
  193. madvise(0xc000526000, 8192, MADV_FREE) = 0
  194. madvise(0xc000524000, 8192, MADV_FREE) = 0
  195. madvise(0xc00051e000, 24576, MADV_FREE) = 0
  196. madvise(0xc00051c000, 8192, MADV_FREE) = 0
  197. madvise(0xc00051a000, 8192, MADV_FREE) = 0
  198. madvise(0xc000518000, 8192, MADV_FREE) = 0
  199. madvise(0xc000516000, 8192, MADV_FREE) = 0
  200. madvise(0xc000514000, 8192, MADV_FREE) = 0
  201. madvise(0xc000512000, 8192, MADV_FREE) = 0
  202. madvise(0xc00050e000, 16384, MADV_FREE) = 0
  203. madvise(0xc00050a000, 16384, MADV_FREE) = 0
  204. madvise(0xc000508000, 8192, MADV_FREE) = 0
  205. madvise(0xc0004e0000, 16384, MADV_FREE) = 0
  206. madvise(0xc0004dc000, 16384, MADV_FREE) = 0
  207. madvise(0xc0004b6000, 8192, MADV_FREE) = 0
  208. madvise(0xc00046e000, 8192, MADV_FREE) = 0
  209. madvise(0xc00046c000, 8192, MADV_FREE) = 0
  210. madvise(0xc00046a000, 8192, MADV_FREE) = 0
  211. madvise(0xc000468000, 8192, MADV_FREE) = 0
  212. madvise(0xc00042a000, 8192, MADV_FREE) = 0
  213. madvise(0xc000428000, 8192, MADV_FREE) = 0
  214. madvise(0xc000426000, 8192, MADV_FREE) = 0
  215. madvise(0xc000422000, 16384, MADV_FREE) = 0
  216. madvise(0xc00041c000, 24576, MADV_FREE) = 0
  217. madvise(0xc000406000, 24576, MADV_FREE) = 0
  218. madvise(0xc000404000, 8192, MADV_FREE) = 0
  219. madvise(0xc0003ea000, 8192, MADV_FREE) = 0
  220. madvise(0xc0003e8000, 8192, MADV_FREE) = 0
  221. madvise(0xc0003e6000, 8192, MADV_FREE) = 0
  222. madvise(0xc0003e4000, 8192, MADV_FREE) = 0
  223. madvise(0xc0003c6000, 8192, MADV_FREE) = 0
  224. madvise(0xc0003c4000, 8192, MADV_FREE) = 0
  225. madvise(0xc0003c2000, 8192, MADV_FREE) = 0
  226. madvise(0xc0003c0000, 8192, MADV_FREE) = 0
  227. madvise(0xc000212000, 8192, MADV_FREE) = 0
  228. madvise(0xc00020e000, 16384, MADV_FREE) = 0
  229. x 100
  230. x 200
  231. x 500
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