valgrind on Fedora22
Valgrind is an instrumentation framework for building dynamic analysis tools.
Valgrind Home
インストール
$ sudo dnf install valgrind
メモリリーク検出
＄ valgrind --leak-check=full ./fib ==4784== Memcheck, a memory error detector ==4784== Copyright (C) 2002-2013, and GNU GPL'd, by Julian Seward et al. ==4784== Using Valgrind-3.10.1 and LibVEX; rerun with -h for copyright info ==4784== Command: ./fib ==4784== 832040 ==4784== ==4784== HEAP SUMMARY: ==4784== in use at exit: 0 bytes in 0 blocks ==4784== total heap usage: 0 allocs, 0 frees, 0 bytes allocated ==4784== ==4784== All heap blocks were freed -- no leaks are possible ==4784== ==4784== For counts of detected and suppressed errors, rerun with: -v ==4784== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
ヒーププロファイラ
$ valgrind --tool=massif ./fib ==4805== Massif, a heap profiler ==4805== Copyright (C) 2003-2013, and GNU GPL'd, by Nicholas Nethercote ==4805== Using Valgrind-3.10.1 and LibVEX; rerun with -h for copyright info ==4805== Command: ./fib ==4805== 832040 ==4805== $ ls -la massif.out.4805 -rw------- 1 dela dela 144 Feb 8 08:48 massif.out.4805 $ cat massif.out.4805 desc: (none) cmd: ./fib time_unit: i #----------- snapshot=0 #----------- time=0 mem_heap_B=0 mem_heap_extra_B=0 mem_stacks_B=0 heap_tree=empty
$ valgrind --tool=callgrind ./fib ==4837== Callgrind, a call-graph generating cache profiler ==4837== Copyright (C) 2002-2013, and GNU GPL'd, by Josef Weidendorfer et al. ==4837== Using Valgrind-3.10.1 and LibVEX; rerun with -h for copyright info ==4837== Command: ./fib ==4837== ==4837== For interactive control, run 'callgrind_control -h'. 832040 ==4837== ==4837== Events : Ir ==4837== Collected : 45872890 ==4837== ==4837== I refs: 45,872,890 $ ls -la callgrind.out.4837 -rw------- 1 dela dela 12618 Feb 8 08:49 callgrind.out.4837
