projects / thirdparty / man-pages.git / blame
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1 | .\" Copyright (c) 2012 by Michael Kerrisk <mtk.manpages@gmail.com> |
| 2 | .\" | |
| 5fbde956 | 3 | .\" SPDX-License-Identifier: Linux-man-pages-copyleft |
| 067568db | 4 | .\" |
| 4c1c5274 | 5 | .TH malloc_stats 3 (date) "Linux man-pages (unreleased)" |
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6 | .SH NAME |
| 7 | malloc_stats \- print memory allocation statistics | |
| cf79e286 AC |
8 | .SH LIBRARY |
| 9 | Standard C library | |
| 8fc3b2cf | 10 | .RI ( libc ", " \-lc ) |
| 067568db | 11 | .SH SYNOPSIS |
| c7db92b9 | 12 | .nf |
| 067568db | 13 | .B #include <malloc.h> |
| dbfe9c70 | 14 | .PP |
| 067568db | 15 | .B void malloc_stats(void); |
| c7db92b9 | 16 | .fi |
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17 | .SH DESCRIPTION |
| 18 | The | |
| 19 | .BR malloc_stats () | |
| 20 | function prints (on standard error) statistics about memory allocated by | |
| 21 | .BR malloc (3) | |
| 22 | and related functions. | |
| 23 | For each arena (allocation area), this function prints | |
| 1da7358e | 24 | the total amount of memory allocated |
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25 | and the total number of bytes consumed by in-use allocations. |
| 26 | (These two values correspond to the | |
| 27 | .I arena | |
| 28 | and | |
| 29 | .I uordblks | |
| 30 | fields retrieved by | |
| 31 | .BR mallinfo (3).) | |
| 32 | In addition, | |
| 33 | the function prints the sum of these two statistics for all arenas, | |
| 34 | and the maximum number of blocks and bytes that were ever simultaneously | |
| 35 | allocated using | |
| 36 | .BR mmap (2). | |
| 37 | .\" .SH VERSIONS | |
| 38 | .\" Available already in glibc 2.0, possibly earlier | |
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39 | .SH ATTRIBUTES |
| 40 | For an explanation of the terms used in this section, see | |
| 41 | .BR attributes (7). | |
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42 | .ad l |
| 43 | .nh | |
| 72dd4c2f ZL |
44 | .TS |
| 45 | allbox; | |
| c466875e | 46 | lbx lb lb |
| 72dd4c2f ZL |
47 | l l l. |
| 48 | Interface Attribute Value | |
| 49 | T{ | |
| 50 | .BR malloc_stats () | |
| 51 | T} Thread safety MT-Safe | |
| 52 | .TE | |
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53 | .hy |
| 54 | .ad | |
| 847e0d88 | 55 | .sp 1 |
| 3113c7f3 | 56 | .SH STANDARDS |
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57 | This function is a GNU extension. |
| 58 | .SH NOTES | |
| 59 | More detailed information about memory allocations in the main arena | |
| 60 | can be obtained using | |
| 61 | .BR mallinfo (3). | |
| 62 | .SH SEE ALSO | |
| 63 | .BR mmap (2), | |
| 64 | .BR mallinfo (3), | |
| 65 | .BR malloc (3), | |
| 66 | .BR malloc_info (3), | |
| 67 | .BR mallopt (3) |