DragonFly On-Line Manual Pages

LMDBG-STAT(1)                                                    LMDBG-STAT(1)

NAME
       lmdbg-stat - outputs statistical information based on lmdbg-run output

SYNOPSIS
       lmdbg-stat [OPTIONS] [files...]

DESCRIPTION
       lmdbg-stat takes output of lmdbg-run or other lmdbg-* utilities on
       input and outputs total and per-stacktrace statistical information
       about memory allocations.  The following statistics is output:

              allocs or total_allocs
                     Per-stacktrace or total number of memory allocations

              max or total_max
                     Per-stacktrace or total maximum of requested bytes

              peak or total_peak
                     Per-stacktrace or total peak of allocated memory

              leaks or total_leaks
                     Per-stacktrace or total amount of bytes that were
                     allocated but not freed

OPTIONS
       -h     Display the help message.

       -V     Display the lmdbg version.

EXAMPLE
       $ cat -n testme.c
            1  #include <stdlib.h>
            2
            3  int main ()
            4  {
            5     int i;
            6     void *p1, *p2;
            7     p1 = malloc (100);
            8     for (i=0; i < 3; ++i){
            9        p2 = realloc (NULL, 10+30*i);
           10     }
           11     free (p1);
           12     free (p2);
           13
           14     return 0;
           15  }
       $ cc -O0 -g -o testme testme.c
       $ lmdbg-run -o log -f 'lmdbg-stat | lmdbg-sym' ./testme
       $ cat log
       info stat total_leaks: 50
       info stat total_allocs: 4
       info stat total_free_cnt: 2
       stacktrace peak: 120 max: 70 allocs: 3 leaks: 50
        0xbbbe2bc3     lmdbg.c:101     log_stacktrace
        0xbbbe3498     lmdbg.c:456     realloc
        0x8048788      testme.c:9      main
        0x80485b4
        0x8048517
       stacktrace peak: 100 max: 100 allocs: 1
        0xbbbe2bc3     lmdbg.c:101     log_stacktrace
        0xbbbe33bd     lmdbg.c:431     malloc
        0x8048757      testme.c:7      main
        0x80485b4
        0x8048517
       $

SEE ALSO
       lmdbg(1), lmdbg-run(1), lmdbg-sym(1), lmdbg-sort(1), lmdbg-grep(1),
       lmdbg-leaks(1), lmdbg-sysleaks(1), lmdbg-strip(1), lmdbg-modules(1)

AUTHOR
       Aleksey Cheusov <vle@gmx.net>

                               November 26, 2011                 LMDBG-STAT(1)