C++内存检查工具valgrind

Posted 2022-03-04 csfreebird

安装

apt-get install valgrind

注意在Ubuntu 16.10上，需要python2为默认python版本。

运行

启动C++程序前加上valgrind即可。

valgrind ./builder/bin/wind_tunnel_d -c ./config_pdc.js

检查报告

C-c C-c退出进程，可以看到如下报告：

==16085== Memcheck, a memory error detector
==16085== Copyright (C) 2002-2015, and GNU GPL'd, by Julian Seward et al.
==16085== Using Valgrind-3.12.0.SVN and LibVEX; rerun with -h for copyright info
==16085== Command: ./builder/bin/wind_tunnel_d -c ./config_pdc.js
==16085== 
  C-c C-c==16085== 
==16085== HEAP SUMMARY:
==16085==     in use at exit: 56,708 bytes in 206 blocks
==16085==   total heap usage: 553,865 allocs, 553,659 frees, 35,269,883 bytes allocated
==16085== 
==16085== LEAK SUMMARY:
==16085==    definitely lost: 0 bytes in 0 blocks
==16085==    indirectly lost: 0 bytes in 0 blocks
==16085==      possibly lost: 0 bytes in 0 blocks
==16085==    still reachable: 56,708 bytes in 206 blocks
==16085==                       of which reachable via heuristic:
==16085==                         newarray           : 14,440 bytes in 29 blocks
==16085==         suppressed: 0 bytes in 0 blocks
==16085== Rerun with --leak-check=full to see details of leaked memory
==16085== 
==16085== For counts of detected and suppressed errors, rerun with: -v
==16085== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)