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Linux块设备层深度解析：从bio请求到IO调度器的全链路透视

本文深入解析Linux内核块设备层(block layer)的完整技术链，从bio请求结构的构造、request队列的派发、IO调度器的合并与排序算法，到多队列块层(mq-blk)的架构演进、带宽控制(blk-iocost)与cgroup IO隔离，再到现代NVMe设备与io_uring的集成，全方位揭示存储IO从VFS到磁盘的完整路径。

编程技术 2026年09月29日 0 点赞 0 评论 2 浏览

Linux块设备层深度解析：从bio请求到IO调度器的全链路透视

本文深入解析Linux内核块设备层(block layer)的完整技术链，从bio请求结构的构造、request队列的派发、IO调度器的合并与排序算法，到多队列块层(mq-blk)的架构演进、带宽控制(blk-iocost)与cgroup IO隔离，再到现代NVMe设备与io_uring的集成，全方位揭示存储IO从VFS到磁盘的完整路径。

编程技术 2026年09月29日 0 点赞 0 评论 2 浏览

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[ BEHAVIOR ] Run Closure @app_init [ RunTime:0.000084s ]
[ CACHE ] INIT File
[ BEHAVIOR ] Run \addons\cms\Cms @app_init [ RunTime:0.008309s ]
[ BEHAVIOR ] Run \addons\fastchat\Fastchat @app_init [ RunTime:0.000162s ]
[ BEHAVIOR ] Run \addons\log\Log @app_init [ RunTime:0.000460s ]
[ BEHAVIOR ] Run \addons\shop\Shop @app_init [ RunTime:0.003265s ]
[ BEHAVIOR ] Run \addons\yunping\Yunping @app_init [ RunTime:0.000459s ]
[ BEHAVIOR ] Run Closure @app_init [ RunTime:0.000589s ]
[ BEHAVIOR ] Run app\common\behavior\Common @app_init [ RunTime:0.001291s ]
[ LANG ] /www/wwwroot/yebinbing/thinkphp/lang/zh-cn.php
[ BEHAVIOR ] Run app\common\behavior\Common @app_dispatch [ RunTime:0.000104s ]
[ ROUTE ] array ( 'type' => 'method', 'method' => array ( 0 => '\\think\\addons\\Route', 1 => 'execute', ), 'var' => array ( 'addon' => 'cms', 'controller' => 'tag', 'action' => 'index', ), )
[ HEADER ] array ( 'cookie' => 'PHPSESSID=he5t460i22mj0giq5iequ6t17a', 'x-forwarded-proto' => 'https', 'cf-visitor' => '{"scheme":"https"}', 'cf-ipcountry' => 'US', 'cf-connecting-ip' => '216.73.216.77', 'cdn-loop' => 'cloudflare; loops=1', 'cf-ray' => 'a429c834ca2a8682-CMH', 'accept-encoding' => 'gzip, br', 'accept' => '*/*', 'user-agent' => 'Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; [email protected])', 'x-forwarded-for' => '216.73.216.77', 'host' => 'www.ybb.press', 'content-length' => '', 'content-type' => '', )
[ PARAM ] array ( 'orderby' => 'views', 'orderway' => 'asc', 'diyname' => '多队列', )
[ RUN ] think\addons\Route->execute[ /www/wwwroot/yebinbing/vendor/fastadminnet/fastadmin-addons/src/addons/Route.php ]
[ LANG ] /www/wwwroot/yebinbing/public/../application/common/lang/zh-cn/addon.php
[ BEHAVIOR ] Run app\common\behavior\Common @addon_begin [ RunTime:0.004251s ]
[ LANG ] /www/wwwroot/yebinbing/addons/cms/lang/zh-cn.php
[ DB ] INIT mysql
[ VIEW ] /www/wwwroot/yebinbing/addons/cms/view/default/tag.html [ array ( 0 => 'config', 1 => 'user', 2 => 'site', 3 => '__CHANNEL__', 4 => 'isWechat', 5 => 'canonical_url', 6 => '__FILTERLIST__', 7 => '__ORDERLIST__', 8 => '__TAG__', 9 => '__TAGS__', 10 => '__PAGELIST__', ) ]
[ SESSION ] INIT array ( 'id' => '', 'var_session_id' => '', 'prefix' => 'fa_', 'auto_start' => true, 'save_path' => '/www/wwwroot/yebinbing/runtime/session', )
[ BEHAVIOR ] Run \addons\cms\Cms @view_filter [ RunTime:0.000350s ]
[ BEHAVIOR ] Run \addons\shop\Shop @view_filter [ RunTime:0.000131s ]

0.273242s

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Linux块设备层深度解析：从bio请求到IO调度器的全链路透视

Linux块设备层深度解析：从bio请求到IO调度器的全链路透视

多队列

首页

多队列

列表

默认

浏览次数

发布日期