'tag.htm'; break; case 'flag': $pre .= $default_pre .= 'flag.htm'; break; case 'my': $pre .= $default_pre .= 'my.htm'; break; case 'my_password': $pre .= $default_pre .= 'my_password.htm'; break; case 'my_bind': $pre .= $default_pre .= 'my_bind.htm'; break; case 'my_avatar': $pre .= $default_pre .= 'my_avatar.htm'; break; case 'home_article': $pre .= $default_pre .= 'home_article.htm'; break; case 'home_comment': $pre .= $default_pre .= 'home_comment.htm'; break; case 'user': $pre .= $default_pre .= 'user.htm'; break; case 'user_login': $pre .= $default_pre .= 'user_login.htm'; break; case 'user_create': $pre .= $default_pre .= 'user_create.htm'; break; case 'user_resetpw': $pre .= $default_pre .= 'user_resetpw.htm'; break; case 'user_resetpw_complete': $pre .= $default_pre .= 'user_resetpw_complete.htm'; break; case 'user_comment': $pre .= $default_pre .= 'user_comment.htm'; break; case 'single_page': $pre .= $default_pre .= 'single_page.htm'; break; case 'search': $pre .= $default_pre .= 'search.htm'; break; case 'operate_sticky': $pre .= $default_pre .= 'operate_sticky.htm'; break; case 'operate_close': $pre .= $default_pre .= 'operate_close.htm'; break; case 'operate_delete': $pre .= $default_pre .= 'operate_delete.htm'; break; case 'operate_move': $pre .= $default_pre .= 'operate_move.htm'; break; case '404': $pre .= $default_pre .= '404.htm'; break; case 'read_404': $pre .= $default_pre .= 'read_404.htm'; break; case 'list_404': $pre .= $default_pre .= 'list_404.htm'; break; default: $pre .= $default_pre .= theme_mode_pre(); break; } if ($config['theme']) { $conffile = APP_PATH . 'view/template/' . $config['theme'] . '/conf.json'; $json = is_file($conffile) ? xn_json_decode(file_get_contents($conffile)) : array(); } !empty($json['installed']) and $path_file = APP_PATH . 'view/template/' . $config['theme'] . '/htm/' . ($id ? $id . '_' : '') . $pre; (empty($path_file) || !is_file($path_file)) and $path_file = APP_PATH . 'view/template/' . $config['theme'] . '/htm/' . $pre; if (!empty($config['theme_child']) && is_array($config['theme_child'])) { foreach ($config['theme_child'] as $theme) { if (empty($theme) || is_array($theme)) continue; $path_file = APP_PATH . 'view/template/' . $theme . '/htm/' . ($id ? $id . '_' : '') . $pre; !is_file($path_file) and $path_file = APP_PATH . 'view/template/' . $theme . '/htm/' . $pre; } } !is_file($path_file) and $path_file = APP_PATH . ($dir ? 'plugin/' . $dir . '/view/htm/' : 'view/htm/') . $default_pre; return $path_file; } function theme_mode_pre($type = 0) { global $config; $mode = $config['setting']['website_mode']; $pre = ''; if (1 == $mode) { $pre .= 2 == $type ? 'portal_category.htm' : 'portal.htm'; } elseif (2 == $mode) { $pre .= 2 == $type ? 'flat_category.htm' : 'flat.htm'; } else { $pre .= 2 == $type ? 'index_category.htm' : 'index.htm'; } return $pre; } ?>Windows 下编译使用 TCMalloc
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Windows 下编译使用 TCMalloc

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下载

下github上面下载源码:Releases · gperftools/gperftools (github) 这里下载的是https://github/gperftools/gperftools/releases/download/gperftools-2.9.1/gperftools-2.9.1.zip

编译

解压压缩包,用vs打开工程文件gperftools.sln,编译成release版本,生成目录下得到 libtcmalloc_minimal.lib 和 libtcmalloc_minimal.dll,如果不想在发布程序的时候带上额外的dll,可以将工程 libtcmalloc_minimal 改为静态库即可。

测试

新建工程,配置工程属性,附加依赖项中增加 libtcmalloc_minimal.lib,强制符号引用增加 __tcmalloc 项,即可在工程中使用被改造后的 malloc 和 new 来申请内存空间。

简单测试代码:

#include <Windows.h> 
#include <iostream>

#define COUNT 1000*1000
void func()
{
    size_t j = 0;
    for (size_t i = 0; i < COUNT; ++i)
    {
        if (j > 1001)
        {
            j = 0;
        }
        int* pInt = (int*)malloc(i * sizeof(int));
        free(pInt);
    }
}

void main()
{
    DWORD tStart, tEnd;

    tStart = GetTickCount();
    func();
    tEnd = GetTickCount();

    printf("%lu\\n", tEnd - tStart);
    getchar();
}

性能比较

使用 tcmalloc 耗时 78ms,使用原生 malloc 耗时 5078ms,耗时对比: 

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