malloc_stats(3)

malloc_stats3

Print memory allocation statistics

Usage

#include <malloc.h>

void malloc_stats(void);

Library

Standard C library (libc, -lc)

Overview

The malloc_stats() function prints (on standard error) statistics about memory allocated by malloc(3) and related functions. For each arena (allocation area), this function prints the total amount of memory allocated and the total number of bytes consumed by in-use allocations. (These two values correspond to the arena and uordblks fields retrieved by mallinfo(3).) In addition, the function prints the sum of these two statistics for all arenas, and the maximum number of blocks and bytes that were ever simultaneously allocated using mmap(2).

Attributes

For an explanation of the terms used in this section, see attributes(7).

InterfaceAttributeValue
malloc_stats()Thread safetyMT-Safe

Notes

More detailed information about memory allocations in the main arena can be obtained using mallinfo(3).

Releases

8 releases since Debian 7 (Wheezy); the text changed 7 times.

  1. 7
  2. 8
  3. 9
  4. 10
  5. 11
  6. 12
  7. 13
  8. Arch

Standards

GNU.

History

glibc 2.0.

From man-pages 6.19-1 in Arch Linux 2026-11-01. Parsed by carta from the page's man source.