libmimalloc-sys2 0.1.51

Sys crate wrapping the mimalloc allocator
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "https://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" lang="en-US">
<head>
<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
<meta http-equiv="X-UA-Compatible" content="IE=11"/>
<meta name="generator" content="Doxygen 1.13.1"/>
<meta name="viewport" content="width=device-width, initial-scale=1"/>
<title>mi-malloc: Using the library</title>
<link href="tabs.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript" src="dynsections.js"></script>
<script type="text/javascript" src="clipboard.js"></script>
<link href="navtree.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="navtreedata.js"></script>
<script type="text/javascript" src="navtree.js"></script>
<script type="text/javascript" src="resize.js"></script>
<script type="text/javascript" src="cookie.js"></script>
<link href="search/search.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="search/searchdata.js"></script>
<script type="text/javascript" src="search/search.js"></script>
<script type="text/javascript">
/* @license magnet:?xt=urn:btih:d3d9a9a6595521f9666a5e94cc830dab83b65699&amp;dn=expat.txt MIT */
  $(function() { init_search(); });
/* @license-end */
</script>
<link href="doxygen.css" rel="stylesheet" type="text/css" />
<link href="mimalloc-doxygen.css" rel="stylesheet" type="text/css"/>
</head>
<body>
<div id="top"><!-- do not remove this div, it is closed by doxygen! -->
<div id="titlearea">
<table cellspacing="0" cellpadding="0">
 <tbody>
 <tr id="projectrow">
  <td id="projectlogo"><img alt="Logo" src="mimalloc-logo.svg"/></td>
  <td id="projectalign">
   <div id="projectname">mi-malloc<span id="projectnumber">&#160;1.8/2.1</span>
   </div>
  </td>
    <td>        <div id="MSearchBox" class="MSearchBoxInactive">
        <span class="left">
          <span id="MSearchSelect"                onmouseover="return searchBox.OnSearchSelectShow()"                onmouseout="return searchBox.OnSearchSelectHide()">&#160;</span>
          <input type="text" id="MSearchField" value="" placeholder="Search" accesskey="S"
               onfocus="searchBox.OnSearchFieldFocus(true)" 
               onblur="searchBox.OnSearchFieldFocus(false)" 
               onkeyup="searchBox.OnSearchFieldChange(event)"/>
          </span><span class="right">
            <a id="MSearchClose" href="javascript:searchBox.CloseResultsWindow()"><img id="MSearchCloseImg" border="0" src="search/close.svg" alt=""/></a>
          </span>
        </div>
</td>
 </tr>
 </tbody>
</table>
</div>
<!-- end header part -->
<!-- Generated by Doxygen 1.13.1 -->
<script type="text/javascript">
/* @license magnet:?xt=urn:btih:d3d9a9a6595521f9666a5e94cc830dab83b65699&amp;dn=expat.txt MIT */
var searchBox = new SearchBox("searchBox", "search/",'.html');
/* @license-end */
</script>
<script type="text/javascript">
/* @license magnet:?xt=urn:btih:d3d9a9a6595521f9666a5e94cc830dab83b65699&amp;dn=expat.txt MIT */
$(function() { codefold.init(0); });
/* @license-end */
</script>
</div><!-- top -->
<div id="side-nav" class="ui-resizable side-nav-resizable">
  <div id="nav-tree">
    <div id="nav-tree-contents">
      <div id="nav-sync" class="sync"></div>
    </div>
  </div>
  <div id="splitbar" style="-moz-user-select:none;" 
       class="ui-resizable-handle">
  </div>
</div>
<script type="text/javascript">
/* @license magnet:?xt=urn:btih:d3d9a9a6595521f9666a5e94cc830dab83b65699&amp;dn=expat.txt MIT */
$(function(){initNavTree('using.html',''); initResizable(true); });
/* @license-end */
</script>
<div id="doc-content">
<!-- window showing the filter options -->
<div id="MSearchSelectWindow"
     onmouseover="return searchBox.OnSearchSelectShow()"
     onmouseout="return searchBox.OnSearchSelectHide()"
     onkeydown="return searchBox.OnSearchSelectKey(event)">
</div>

<!-- iframe showing the search results (closed by default) -->
<div id="MSearchResultsWindow">
<div id="MSearchResults">
<div class="SRPage">
<div id="SRIndex">
<div id="SRResults"></div>
<div class="SRStatus" id="Loading">Loading...</div>
<div class="SRStatus" id="Searching">Searching...</div>
<div class="SRStatus" id="NoMatches">No Matches</div>
</div>
</div>
</div>
</div>

<div><div class="header">
  <div class="headertitle"><div class="title">Using the library</div></div>
</div><!--header-->
<div class="contents">
<div class="textblock"><h3>Build</h3>
<p>The preferred usage is including <code>&lt;mimalloc.h&gt;</code>, linking with the shared- or static library, and using the <code>mi_malloc</code> API exclusively for allocation. For example, </p><div class="fragment"><div class="line">gcc -o myprogram -lmimalloc myfile.c</div>
</div><!-- fragment --><p>mimalloc uses only safe OS calls (<code>mmap</code> and <code>VirtualAlloc</code>) and can co-exist with other allocators linked to the same program. If you use <code>cmake</code>, you can simply use: </p><div class="fragment"><div class="line">find_package(mimalloc 2.1 REQUIRED)</div>
</div><!-- fragment --><p> in your <code>CMakeLists.txt</code> to find a locally installed mimalloc. Then use either: </p><div class="fragment"><div class="line">target_link_libraries(myapp PUBLIC mimalloc)</div>
</div><!-- fragment --><p> to link with the shared (dynamic) library, or: </p><div class="fragment"><div class="line">target_link_libraries(myapp PUBLIC mimalloc-<span class="keyword">static</span>)</div>
</div><!-- fragment --><p> to link with the static library. See <code>test\CMakeLists.txt</code> for an example.</p>
<h3>C++</h3>
<p>For best performance in C++ programs, it is also recommended to override the global <code>new</code> and <code>delete</code> operators. For convenience, mimalloc provides <a href="https://github.com/microsoft/mimalloc/blob/master/include/mimalloc-new-delete.h"><code>mimalloc-new-delete.h</code></a> which does this for you &ndash; just include it in a single(!) source file in your project.</p>
<p>In C++, mimalloc also provides the <code><a class="el" href="group__cpp.html#structmi__stl__allocator" title="std::allocator implementation for mimalloc for use in STL containers.">mi_stl_allocator</a></code> struct which implements the <code>std::allocator</code> interface. For example: </p><div class="fragment"><div class="line">std::vector&lt;some_struct, mi_stl_allocator&lt;some_struct&gt;&gt; vec;</div>
<div class="line">vec.push_back(some_struct());</div>
</div><!-- fragment --><h3>Statistics</h3>
<p>You can pass environment variables to print verbose messages (<code>MIMALLOC_VERBOSE=1</code>) and statistics (<code>MIMALLOC_SHOW_STATS=1</code>) (in the debug version): </p><div class="fragment"><div class="line">&gt; env MIMALLOC_SHOW_STATS=1 ./cfrac 175451865205073170563711388363</div>
<div class="line"> </div>
<div class="line">175451865205073170563711388363 = 374456281610909315237213 * 468551</div>
<div class="line"> </div>
<div class="line">heap stats:     peak      total      freed       unit</div>
<div class="line">normal   2:    16.4 kb    17.5 mb    17.5 mb      16 b   ok</div>
<div class="line">normal   3:    16.3 kb    15.2 mb    15.2 mb      24 b   ok</div>
<div class="line">normal   4:      64 b      4.6 kb     4.6 kb      32 b   ok</div>
<div class="line">normal   5:      80 b    118.4 kb   118.4 kb      40 b   ok</div>
<div class="line">normal   6:      48 b       48 b       48 b       48 b   ok</div>
<div class="line">normal  17:     960 b      960 b      960 b      320 b   ok</div>
<div class="line"> </div>
<div class="line">heap stats:     peak      total      freed       unit</div>
<div class="line">    normal:    33.9 kb    32.8 mb    32.8 mb       1 b   ok</div>
<div class="line">      huge:       0 b        0 b        0 b        1 b   ok</div>
<div class="line">     total:    33.9 kb    32.8 mb    32.8 mb       1 b   ok</div>
<div class="line">malloc requested:         32.8 mb</div>
<div class="line"> </div>
<div class="line"> committed:    58.2 kb    58.2 kb    58.2 kb       1 b   ok</div>
<div class="line">  reserved:     2.0 mb     2.0 mb     2.0 mb       1 b   ok</div>
<div class="line">     reset:       0 b        0 b        0 b        1 b   ok</div>
<div class="line">  segments:       1          1          1</div>
<div class="line">-abandoned:       0</div>
<div class="line">     pages:       6          6          6</div>
<div class="line">-abandoned:       0</div>
<div class="line">     mmaps:       3</div>
<div class="line"> mmap fast:       0</div>
<div class="line"> mmap slow:       1</div>
<div class="line">   threads:       0</div>
<div class="line">   elapsed:     2.022s</div>
<div class="line">   process: user: 1.781s, system: 0.016s, faults: 756, reclaims: 0, rss: 2.7 mb</div>
</div><!-- fragment --><p>The above model of using the <code>mi_</code> prefixed API is not always possible though in existing programs that already use the standard malloc interface, and another option is to override the standard malloc interface completely and redirect all calls to the <em>mimalloc</em> library instead.</p>
<p>See <a class="el" href="overrides.html">Overriding Malloc</a> for more info. </p>
</div></div><!-- contents -->
</div><!-- PageDoc -->
</div><!-- doc-content -->
<!-- start footer part -->
<div id="nav-path" class="navpath"><!-- id is needed for treeview function! -->
  <ul>
    <li class="footer">Generated by <a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.13.1 </li>
  </ul>
</div>
</body>
</html>