man3/malloc_stats.3

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  26 .TH MALLOC_STATS 3  2017-09-15 "Linux" "Linux Programmer's Manual"
  27 .SH NAME
  28 malloc_stats \- print memory allocation statistics
  29 .SH SYNOPSIS
  30 .B #include <malloc.h>
  31 .PP
  32 .B void malloc_stats(void);
  33 .SH DESCRIPTION
  34 The
  35 .BR malloc_stats ()
  36 function prints (on standard error) statistics about memory allocated by
  37 .BR malloc (3)
  38 and related functions.
  39 For each arena (allocation area), this function prints
  40 the total amount of memory allocated
  41 and the total number of bytes consumed by in-use allocations.
  42 (These two values correspond to the
  43 .I arena
  44 and
  45 .I uordblks
  46 fields retrieved by
  47 .BR mallinfo (3).)
  48 In addition,
  49 the function prints the sum of these two statistics for all arenas,
  50 and the maximum number of blocks and bytes that were ever simultaneously
  51 allocated using
  52 .BR mmap (2).
  53 .\" .SH VERSIONS
  54 .\" Available already in glibc 2.0, possibly earlier
  55 .SH ATTRIBUTES
  56 For an explanation of the terms used in this section, see
  57 .BR attributes (7).
  58 .TS
  59 allbox;
  60 lb lb lb
  61 l l l.
  62 Interface       Attribute       Value
  63 T{
  64 .BR malloc_stats ()
  65 T}      Thread safety   MT-Safe
  66 .TE
  67 .sp 1
  68 .SH CONFORMING TO
  69 This function is a GNU extension.
  70 .SH NOTES
  71 More detailed information about memory allocations in the main arena
  72 can be obtained using
  73 .BR mallinfo (3).
  74 .SH SEE ALSO
  75 .BR mmap (2),
  76 .BR mallinfo (3),
  77 .BR malloc (3),
  78 .BR malloc_info (3),
  79 .BR mallopt (3)