valgrind需要永远找到内存泄漏，但程序在没有valgrind的情况下运行需要几秒钟

Question

I am using valgrind to find memory leaks on my program however it is taking a long time and its loading. When I run the program without valgrind it takes second, what is the problem and what should I look for in the code.

Answer 1

There is no problem as far as I can see unless you can verify an infinite loop or some other run-time error ... Valgrind basically acts like a virtual machine or virtual execution environment running the program, watching all variables, memory allocations, etc., etc. and therefore will run quite a bit slower than native code. You'll get the same effect if you ran your program inside a debugger like gdb and set it to watch every writable memory location.