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      
$

AUTHOR