projects / thirdparty / man-pages.git / blame
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1 | '\" t |
| 2 | .\" Copyright (c) 2012 by Michael Kerrisk <mtk.manpages@gmail.com> | |
| 3 | .\" | |
| 93015253 | 4 | .\" %%%LICENSE_START(VERBATIM) |
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5 | .\" Permission is granted to make and distribute verbatim copies of this |
| 6 | .\" manual provided the copyright notice and this permission notice are | |
| 7 | .\" preserved on all copies. | |
| 8 | .\" | |
| 9 | .\" Permission is granted to copy and distribute modified versions of this | |
| 10 | .\" manual under the conditions for verbatim copying, provided that the | |
| 11 | .\" entire resulting derived work is distributed under the terms of a | |
| 12 | .\" permission notice identical to this one. | |
| 13 | .\" | |
| 14 | .\" Since the Linux kernel and libraries are constantly changing, this | |
| 15 | .\" manual page may be incorrect or out-of-date. The author(s) assume no | |
| 16 | .\" responsibility for errors or omissions, or for damages resulting from | |
| 17 | .\" the use of the information contained herein. The author(s) may not | |
| 18 | .\" have taken the same level of care in the production of this manual, | |
| 19 | .\" which is licensed free of charge, as they might when working | |
| 20 | .\" professionally. | |
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| 22 | .\" Formatted or processed versions of this manual, if unaccompanied by | |
| 23 | .\" the source, must acknowledge the copyright and authors of this work. | |
| 4b72fb64 | 24 | .\" %%%LICENSE_END |
| 067568db | 25 | .\" |
| 4b8c67d9 | 26 | .TH MALLOC_STATS 3 2017-09-15 "Linux" "Linux Programmer's Manual" |
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27 | .SH NAME |
| 28 | malloc_stats \- print memory allocation statistics | |
| 29 | .SH SYNOPSIS | |
| 30 | .B #include <malloc.h> | |
| dbfe9c70 | 31 | .PP |
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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 | |
| 1da7358e | 40 | the total amount of memory allocated |
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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 | |
| 72dd4c2f ZL |
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 | |
| 847e0d88 | 67 | .sp 1 |
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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) |