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|
||||
<li class="md-nav__item">
|
||||
<a href="#distcc" class="md-nav__link">
|
||||
<span class="md-ellipsis">
|
||||
Distcc
|
||||
</span>
|
||||
</a>
|
||||
|
||||
</li>
|
||||
|
||||
<li class="md-nav__item">
|
||||
<a href="#_3" class="md-nav__link">
|
||||
<span class="md-ellipsis">
|
||||
Компиляция
|
||||
</span>
|
||||
</a>
|
||||
|
||||
<nav class="md-nav" aria-label="Компиляция">
|
||||
<ul class="md-nav__list">
|
||||
|
||||
<li class="md-nav__item">
|
||||
<a href="#_4" class="md-nav__link">
|
||||
<span class="md-ellipsis">
|
||||
Демонстрация стенда
|
||||
</span>
|
||||
</a>
|
||||
|
||||
</li>
|
||||
|
||||
<li class="md-nav__item">
|
||||
<a href="#gcc" class="md-nav__link">
|
||||
<span class="md-ellipsis">
|
||||
Компиляция на одной машине (gcc)
|
||||
</span>
|
||||
</a>
|
||||
|
||||
</li>
|
||||
|
||||
<li class="md-nav__item">
|
||||
<a href="#distcc_1" class="md-nav__link">
|
||||
<span class="md-ellipsis">
|
||||
Компиляция на одной машине (distcc)
|
||||
</span>
|
||||
</a>
|
||||
|
||||
</li>
|
||||
|
||||
<li class="md-nav__item">
|
||||
<a href="#distcc_2" class="md-nav__link">
|
||||
<span class="md-ellipsis">
|
||||
Компиляция на двух машинах (distcc)
|
||||
</span>
|
||||
</a>
|
||||
|
||||
</li>
|
||||
|
||||
<li class="md-nav__item">
|
||||
<a href="#_5" class="md-nav__link">
|
||||
<span class="md-ellipsis">
|
||||
Таблица сравнения
|
||||
</span>
|
||||
</a>
|
||||
|
||||
</li>
|
||||
|
||||
</ul>
|
||||
</nav>
|
||||
|
||||
</li>
|
||||
|
||||
<li class="md-nav__item">
|
||||
<a href="#_6" class="md-nav__link">
|
||||
<span class="md-ellipsis">
|
||||
Итог
|
||||
</span>
|
||||
</a>
|
||||
|
||||
</li>
|
||||
|
||||
</ul>
|
||||
|
||||
</nav>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
|
||||
|
||||
|
||||
<div class="md-content" data-md-component="content">
|
||||
<article class="md-content__inner md-typeset">
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
<h1 id="_1">Немного про распределенную компиляцию</h1>
|
||||
<h2 id="_2">Мотивация / Введение</h2>
|
||||
<p>Мне, как любителю Linux, всегда было интересно изучить Gentoo
|
||||
Linux. На это есть множество причин, сейчас не о них.
|
||||
Суть в том, этап установки системы на виртуальную машину пройден и
|
||||
есть желание попробовать установить на второстепенный маломощный нетбук.
|
||||
Возникает проблема: Gentoo Linux -- это т.н. "source-based" дистрибутив,
|
||||
т.е. она распространяется в виде исходного кода. В свою очередь, компиляция
|
||||
системы на нетбуке занимает чуть больше суток (возможно, это можно поправить
|
||||
более тщательной конфигурацией перед сборкой, но, на мой взгляд, это
|
||||
слишком "хардкорный" путь для знакомства с системой). Конечно, компиляция
|
||||
ядра, строго говоря, необязательна, так как можно поставить предварительно
|
||||
скомпилированную версию. Но так неинтересно.</p>
|
||||
<p>Таким образом, возникает вопрос -- можно ли ускорить компиляцию
|
||||
на слабых ПК? Тут на помощь приходит <code>distcc</code>,
|
||||
своего рода фронтенд для компиляторов C/C++.</p>
|
||||
<p>Сегодня мы хотим посмотреть на возможность компиляции ядра Linux (минимальной
|
||||
конфигурации <code>tinyconfig</code>) на двух виртуальных машинах с разными
|
||||
характеристиками. Но для этого нужно рассказать про утилиту <code>vagrant</code>,
|
||||
конфигуратор виртуальных машин.</p>
|
||||
<h2 id="vagrant">Vagrant</h2>
|
||||
<p>Vagrant<sup id="fnref:1"><a class="footnote-ref" href="#fn:1">1</a></sup> (с англ. — «бродяга») — свободное и открытое программное
|
||||
обеспечение для создания и конфигурирования виртуальной среды разработки.
|
||||
Является обёрткой для программного обеспечения виртуализации, например
|
||||
VirtualBox, и средств управления конфигурациями, таких как Chef, Salt и
|
||||
Puppet.</p>
|
||||
<p>Данная утилита полезна тем, что позволяет, используя шаблоны виртуальных
|
||||
машин, запускать их. Для описания стэка требуется один т.н. Vagrantfile.
|
||||
Она может работать совместно с qemu, VirtualBox, VMWare и пр. </p>
|
||||
<p>О vagrant стоит знать потому, что в какой момент, эксперементируя с
|
||||
виртуальными машинами, надоест каждый раз их устанавливать в условном VMWare.</p>
|
||||
<h2 id="distcc">Distcc</h2>
|
||||
<p>distcc<sup id="fnref:2"><a class="footnote-ref" href="#fn:2">2</a></sup> (от англ. distributed C/C++/ObjC compiler) — инструмент,
|
||||
позволяющий компилировать исходные коды при помощи
|
||||
компиляторов C/C++/ObjC на удалённых машинах, что ускоряет процесс компиляции.</p>
|
||||
<p>Важно понимать, что это своего рода фронтенд для компиляторов,
|
||||
сам по себе он не компилирует код.</p>
|
||||
<h2 id="_3">Компиляция</h2>
|
||||
<h3 id="_4">Демонстрация стенда</h3>
|
||||
<p>Для начала построчно рассмотрим Vagrantfile.
|
||||
При его написании используется язык Ruby.</p>
|
||||
<p>Описание "шаблона" для виртуальных машин. В данном случае это Debian
|
||||
12 Bookworm.</p>
|
||||
<div class="highlight"><pre><span></span><code><span class="c1"># Default box</span>
|
||||
<span class="n">box_name</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="s2">"debian.jessie64.libvirt.box"</span>
|
||||
</code></pre></div>
|
||||
<p>Файл можно скачать с сайта HashiCorp. </p>
|
||||
<p>Описание виртуальной машины, на которой будет основная компиляция:</p>
|
||||
<div class="highlight"><pre><span></span><code><span class="c1"># Master</span>
|
||||
<span class="n">master_node</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">{</span>
|
||||
<span class="w"> </span><span class="ss">:hostname</span><span class="w"> </span><span class="o">=></span><span class="w"> </span><span class="s2">"master"</span><span class="p">,</span><span class="w"> </span><span class="ss">:ip</span><span class="w"> </span><span class="o">=></span><span class="w"> </span><span class="s2">"10.200.1.2"</span><span class="p">,</span><span class="w"> </span><span class="ss">:memory</span><span class="w"> </span><span class="o">=></span><span class="w"> </span><span class="mi">1024</span><span class="p">,</span><span class="w"> </span><span class="ss">:cpu</span><span class="w"> </span><span class="o">=></span><span class="w"> </span><span class="mi">1</span>
|
||||
<span class="p">}</span>
|
||||
</code></pre></div>
|
||||
<p>Характеристики:</p>
|
||||
<ul>
|
||||
<li>IP: 10.200.1.2,</li>
|
||||
<li>RAM: 1Gb,</li>
|
||||
<li>1 поток.</li>
|
||||
</ul>
|
||||
<p>Они похожи на характеристики моего нетбука, но занижены в целях демонстрации.</p>
|
||||
<p>Описание второстепенной виртуальной машины:</p>
|
||||
<div class="highlight"><pre><span></span><code><span class="c1"># List of slaves</span>
|
||||
<span class="n">slaves</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="o">[</span>
|
||||
<span class="w"> </span><span class="p">{</span><span class="w"> </span><span class="ss">:memory</span><span class="w"> </span><span class="o">=></span><span class="w"> </span><span class="mi">4096</span><span class="p">,</span><span class="w"> </span><span class="ss">:cpu</span><span class="w"> </span><span class="o">=></span><span class="w"> </span><span class="mi">4</span><span class="w"> </span><span class="p">},</span>
|
||||
<span class="o">]</span>
|
||||
</code></pre></div>
|
||||
<p>Характеристики:</p>
|
||||
<ul>
|
||||
<li>RAM: 4Gb,</li>
|
||||
<li>4 потока.</li>
|
||||
</ul>
|
||||
<p>Скрипт для автоматической установки зависимостей:</p>
|
||||
<div class="highlight"><pre><span></span><code><span class="vg">$distcc_install</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="o"><<-</span><span class="dl">SCRIPT</span>
|
||||
<span class="sh">apt update</span>
|
||||
<span class="sh">apt install -y make distcc gcc g++ tmux libz-dev git fakeroot build-essential ncurses-dev xz-utils libssl-dev bc flex libelf-dev bison time neofetch</span>
|
||||
<span class="dl">SCRIPT</span>
|
||||
</code></pre></div>
|
||||
<p>Старт конфигурации виртуальных машин:</p>
|
||||
<div class="highlight"><pre><span></span><code><span class="no">Vagrant</span><span class="o">.</span><span class="n">configure</span><span class="p">(</span><span class="s2">"2"</span><span class="p">)</span><span class="w"> </span><span class="k">do</span><span class="w"> </span><span class="o">|</span><span class="n">config</span><span class="o">|</span>
|
||||
</code></pre></div>
|
||||
<p>Конфигурация основной машины:</p>
|
||||
<div class="highlight"><pre><span></span><code><span class="w"> </span><span class="c1"># Master node's config</span>
|
||||
<span class="w"> </span><span class="n">config</span><span class="o">.</span><span class="n">vm</span><span class="o">.</span><span class="n">box_check_update</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="kp">false</span>
|
||||
<span class="w"> </span><span class="n">config</span><span class="o">.</span><span class="n">vm</span><span class="o">.</span><span class="n">define</span><span class="w"> </span><span class="n">master_node</span><span class="o">[</span><span class="ss">:hostname</span><span class="o">]</span><span class="w"> </span><span class="k">do</span><span class="w"> </span><span class="o">|</span><span class="n">nodeconfig</span><span class="o">|</span>
|
||||
<span class="w"> </span><span class="n">nodeconfig</span><span class="o">.</span><span class="n">vm</span><span class="o">.</span><span class="n">box</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">box_name</span>
|
||||
<span class="w"> </span><span class="n">nodeconfig</span><span class="o">.</span><span class="n">vm</span><span class="o">.</span><span class="n">hostname</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">master_node</span><span class="o">[</span><span class="ss">:hostname</span><span class="o">]</span>
|
||||
<span class="w"> </span><span class="n">nodeconfig</span><span class="o">.</span><span class="n">vm</span><span class="o">.</span><span class="n">network</span><span class="p">(</span><span class="ss">:private_network</span><span class="p">,</span><span class="w"> </span><span class="ss">ip</span><span class="p">:</span><span class="w"> </span><span class="n">master_node</span><span class="o">[</span><span class="ss">:ip</span><span class="o">]</span><span class="p">)</span>
|
||||
<span class="w"> </span><span class="n">nodeconfig</span><span class="o">.</span><span class="n">vm</span><span class="o">.</span><span class="n">provision</span><span class="w"> </span><span class="s2">"shell"</span><span class="p">,</span><span class="w"> </span><span class="ss">inline</span><span class="p">:</span><span class="w"> </span><span class="vg">$distcc_install</span>
|
||||
<span class="w"> </span><span class="n">nodeconfig</span><span class="o">.</span><span class="n">vm</span><span class="o">.</span><span class="n">provision</span><span class="w"> </span><span class="s2">"file"</span><span class="p">,</span><span class="w"> </span><span class="ss">source</span><span class="p">:</span><span class="w"> </span><span class="s2">"./linux-6.13.tar.gz"</span><span class="p">,</span><span class="w"> </span><span class="ss">destination</span><span class="p">:</span><span class="w"> </span><span class="s2">"~/linux-6.13.tar.gz"</span>
|
||||
<span class="w"> </span><span class="n">nodeconfig</span><span class="o">.</span><span class="n">vm</span><span class="o">.</span><span class="n">provider</span><span class="w"> </span><span class="ss">:libvirt</span><span class="w"> </span><span class="k">do</span><span class="w"> </span><span class="o">|</span><span class="n">vb</span><span class="o">|</span>
|
||||
<span class="w"> </span><span class="n">vb</span><span class="o">.</span><span class="n">memory</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">master_node</span><span class="o">[</span><span class="ss">:memory</span><span class="o">]</span>
|
||||
<span class="w"> </span><span class="n">vb</span><span class="o">.</span><span class="n">cpus</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">master_node</span><span class="o">[</span><span class="ss">:cpu</span><span class="o">]</span>
|
||||
<span class="w"> </span><span class="k">end</span>
|
||||
<span class="w"> </span><span class="k">end</span>
|
||||
</code></pre></div>
|
||||
<p>В нем:</p>
|
||||
<ol>
|
||||
<li>Отключаются обновления,</li>
|
||||
<li>Задаются характеристики ВМ,</li>
|
||||
<li>Запускается скрипт установки зависимостей,</li>
|
||||
<li>Копируется
|
||||
<a href="https://cdn.kernel.org/pub/linux/kernel/v6.x/linux-6.13.tar.gz">архив</a>
|
||||
с исходным кодом ядра (должен лежать в директории с Vagrantfile).</li>
|
||||
</ol>
|
||||
<p>Конфигурация второстепенных машин:</p>
|
||||
<div class="highlight"><pre><span></span><code><span class="w"> </span><span class="c1"># Slaves configs</span>
|
||||
<span class="w"> </span><span class="n">slaves</span><span class="o">.</span><span class="n">each_with_index</span><span class="w"> </span><span class="k">do</span><span class="w"> </span><span class="o">|</span><span class="n">slave</span><span class="p">,</span><span class="w"> </span><span class="n">i</span><span class="o">|</span>
|
||||
<span class="w"> </span><span class="n">config</span><span class="o">.</span><span class="n">vm</span><span class="o">.</span><span class="n">box_check_update</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="kp">false</span>
|
||||
<span class="w"> </span><span class="n">config</span><span class="o">.</span><span class="n">vm</span><span class="o">.</span><span class="n">define</span><span class="w"> </span><span class="s2">"slave-</span><span class="si">#{</span><span class="w"> </span><span class="n">i</span><span class="o">+</span><span class="mi">1</span><span class="w"> </span><span class="si">}</span><span class="s2">"</span><span class="w"> </span><span class="k">do</span><span class="w"> </span><span class="o">|</span><span class="n">nodeconfig</span><span class="o">|</span>
|
||||
<span class="w"> </span><span class="c1"># Default box-name (cause I have only it)</span>
|
||||
<span class="w"> </span><span class="n">nodeconfig</span><span class="o">.</span><span class="n">vm</span><span class="o">.</span><span class="n">box</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">box_name</span>
|
||||
|
||||
<span class="w"> </span><span class="c1"># Hostname: slave-N</span>
|
||||
<span class="w"> </span><span class="n">nodeconfig</span><span class="o">.</span><span class="n">vm</span><span class="o">.</span><span class="n">hostname</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="s2">"slave-</span><span class="si">#{</span><span class="w"> </span><span class="n">i</span><span class="o">+</span><span class="mi">1</span><span class="w"> </span><span class="si">}</span><span class="s2">"</span>
|
||||
|
||||
<span class="w"> </span><span class="c1"># IP-address: 10.200.1.{N+2}</span>
|
||||
<span class="w"> </span><span class="n">nodeconfig</span><span class="o">.</span><span class="n">vm</span><span class="o">.</span><span class="n">network</span><span class="w"> </span><span class="ss">:private_network</span><span class="p">,</span><span class="w"> </span><span class="ss">ip</span><span class="p">:</span><span class="w"> </span><span class="s2">"10.200.1.</span><span class="si">#{</span><span class="w"> </span><span class="n">i</span><span class="o">+</span><span class="mi">3</span><span class="w"> </span><span class="si">}</span><span class="s2">"</span>
|
||||
<span class="w"> </span><span class="n">nodeconfig</span><span class="o">.</span><span class="n">vm</span><span class="o">.</span><span class="n">provision</span><span class="w"> </span><span class="s2">"shell"</span><span class="p">,</span><span class="w"> </span><span class="ss">inline</span><span class="p">:</span><span class="w"> </span><span class="vg">$distcc_install</span>
|
||||
<span class="w"> </span><span class="n">nodeconfig</span><span class="o">.</span><span class="n">vm</span><span class="o">.</span><span class="n">provider</span><span class="w"> </span><span class="ss">:libvirt</span><span class="w"> </span><span class="k">do</span><span class="w"> </span><span class="o">|</span><span class="n">vb</span><span class="o">|</span>
|
||||
<span class="w"> </span><span class="n">vb</span><span class="o">.</span><span class="n">memory</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">slave</span><span class="o">[</span><span class="ss">:memory</span><span class="o">]</span>
|
||||
<span class="w"> </span><span class="n">vb</span><span class="o">.</span><span class="n">cpus</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">slave</span><span class="o">[</span><span class="ss">:cpu</span><span class="o">]</span>
|
||||
<span class="w"> </span><span class="k">end</span>
|
||||
<span class="w"> </span><span class="k">end</span>
|
||||
<span class="w"> </span><span class="k">end</span>
|
||||
<span class="k">end</span>
|
||||
</code></pre></div>
|
||||
<p>Стоит обратить внимание, что IP задается автоматически, начиная от
|
||||
<code>10.200.1.3</code> и далее. Сделано это на случай нескольких ВМ.</p>
|
||||
<h3 id="gcc">Компиляция на одной машине (gcc)</h3>
|
||||
<p>Для начала запустим стенд командой <code>vagrant up</code>. На моем ноутбуке это занимает
|
||||
примерно 127 секунд.</p>
|
||||
<p>Далее необходимо подключиться к главной машине и распаковать исходники ядра<sup id="fnref:3"><a class="footnote-ref" href="#fn:3">3</a></sup>:</p>
|
||||
<div class="highlight"><pre><span></span><code>vagrant<span class="w"> </span>ssh<span class="w"> </span>master
|
||||
tar<span class="w"> </span>xvf<span class="w"> </span>linux-6.13.tar.gz
|
||||
<span class="nb">cd</span><span class="w"> </span>linux-6.13
|
||||
</code></pre></div>
|
||||
<p>Создаем файл минимальной конфигурации
|
||||
(с остальными вариантам можно ознакомиться командой <code>make help | less</code>):</p>
|
||||
<div class="highlight"><pre><span></span><code>make<span class="w"> </span>tinyconfig
|
||||
</code></pre></div>
|
||||
<blockquote>
|
||||
<p><strong>Важно</strong>: для чистоты эксперимента все замеры делаются после команды <code>make
|
||||
distclean</code> (см. <code>make help</code>).</p>
|
||||
</blockquote>
|
||||
<p>Запускаем компиляцию с замером времени:</p>
|
||||
<div class="highlight"><pre><span></span><code><span class="nb">time</span><span class="w"> </span>-p<span class="w"> </span>make<span class="w"> </span><span class="nv">CC</span><span class="o">=</span>gcc
|
||||
</code></pre></div>
|
||||
<h3 id="distcc_1">Компиляция на одной машине (distcc)</h3>
|
||||
<p>По смыслу, все тоже самое, только нужно указать distcc, на каких хостах
|
||||
можно компилировать:</p>
|
||||
<div class="highlight"><pre><span></span><code><span class="nb">export</span><span class="w"> </span><span class="nv">DISTCC_HOSTS</span><span class="o">=</span><span class="s2">"localhost"</span>
|
||||
</code></pre></div>
|
||||
<p>Запускаем компиляцию с замером времени:</p>
|
||||
<div class="highlight"><pre><span></span><code><span class="nb">time</span><span class="w"> </span>-p<span class="w"> </span>make<span class="w"> </span><span class="nv">CC</span><span class="o">=</span><span class="s2">"distcc gcc"</span>
|
||||
</code></pre></div>
|
||||
<h3 id="distcc_2">Компиляция на двух машинах (distcc)</h3>
|
||||
<p>Для запуска распределенной компиляции, нужно сначала запустить демон на
|
||||
второй виртуальной машине. Для этого подключаемся к ней и запускаем его:</p>
|
||||
<div class="highlight"><pre><span></span><code>vagrant<span class="w"> </span>ssh<span class="w"> </span>slave-1
|
||||
distccd<span class="w"> </span>--daemon<span class="w"> </span>--allow-private
|
||||
</code></pre></div>
|
||||
<p>Параметр <code>--allow-private</code> разрешает стучаться только с приватных сетей.</p>
|
||||
<p>Для проверки можно:</p>
|
||||
<ol>
|
||||
<li>На второй машине проверить открытые порты: <code>ss -ntlp | grep 3632</code>,</li>
|
||||
<li>С основной машины постучаться в этот порт: <code>telnet 10.200.1.3 3632</code>
|
||||
(выход на <code>C-] C-d</code>).</li>
|
||||
</ol>
|
||||
<p>Теперь нужно добавить хост, чтобы на нем можно было удаленно компилировать.
|
||||
Для этого на основной машине:</p>
|
||||
<div class="highlight"><pre><span></span><code><span class="nb">export</span><span class="w"> </span><span class="nv">DISTCC_HOSTS</span><span class="o">=</span><span class="s2">"localhost 10.200.1.3"</span>
|
||||
</code></pre></div>
|
||||
<p>Для проверки можно посмотреть список хостов для компиляции: <code>distcc --show-hosts</code>.</p>
|
||||
<p>Запустим компиляцию на 5 потоках с замером времени:</p>
|
||||
<div class="highlight"><pre><span></span><code><span class="nb">time</span><span class="w"> </span>-p<span class="w"> </span>make<span class="w"> </span>-j5<span class="w"> </span><span class="nv">CC</span><span class="o">=</span><span class="s2">"distcc gcc"</span>
|
||||
</code></pre></div>
|
||||
<p>Мониторить компиляцию можно с помощью команды (на основной машине):</p>
|
||||
<div class="highlight"><pre><span></span><code>watch<span class="w"> </span>-n<span class="w"> </span><span class="m">1</span><span class="w"> </span>distccmon-text
|
||||
</code></pre></div>
|
||||
<p><img alt="distccmon-text" src="../assets/distccmon-text.png" /></p>
|
||||
<h3 id="_5">Таблица сравнения</h3>
|
||||
<table>
|
||||
<thead>
|
||||
<tr>
|
||||
<th style="text-align: center;">Итерация</th>
|
||||
<th style="text-align: center;">Одна машина (gcc), с</th>
|
||||
<th style="text-align: center;">Одна машина (distcc), с</th>
|
||||
<th style="text-align: center;">Две машины (distcc), с</th>
|
||||
</tr>
|
||||
</thead>
|
||||
<tbody>
|
||||
<tr>
|
||||
<td style="text-align: center;">1</td>
|
||||
<td style="text-align: center;">176</td>
|
||||
<td style="text-align: center;">176</td>
|
||||
<td style="text-align: center;">111</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td style="text-align: center;">2</td>
|
||||
<td style="text-align: center;">186</td>
|
||||
<td style="text-align: center;">162</td>
|
||||
<td style="text-align: center;">109</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td style="text-align: center;">3</td>
|
||||
<td style="text-align: center;">187</td>
|
||||
<td style="text-align: center;">174</td>
|
||||
<td style="text-align: center;">127</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td style="text-align: center;">Среднее</td>
|
||||
<td style="text-align: center;">183</td>
|
||||
<td style="text-align: center;">170</td>
|
||||
<td style="text-align: center;">115</td>
|
||||
</tr>
|
||||
</tbody>
|
||||
</table>
|
||||
<h2 id="_6">Итог</h2>
|
||||
<p>Можно увидеть, что такая параллелизация дает прирост 37%.
|
||||
Сложно сказать, можно ли разогнать сильнее, так как многое зависит от
|
||||
правил компиляции (например, их нельзя распараллелить больше чем на 5 потоков).</p>
|
||||
<p>Очевидно, что распределенная компиляция при прочих равных будет проигрывать
|
||||
параллельной, так как общение между потоками по определению быстрее.
|
||||
Но для слабых машин это отлично подходит. К сожалению, у данного метода есть
|
||||
существенные ограничения:</p>
|
||||
<ol>
|
||||
<li>Версии gcc и distcc должны совпадать (хотя, пишут, что достаточно
|
||||
совпадения только мажорных версий).</li>
|
||||
<li>В некоторых случаях нет возможности общения по TCP и требуется подключение по
|
||||
SSH. Например, когда есть ограничения безопасности или при сложной организации
|
||||
сети. Определенно, такое подключение будет медленнее.</li>
|
||||
</ol>
|
||||
<p>Все материалы стенда можно найти в
|
||||
<a href="https://github.com/rustbas/disgrant/">репозитории</a> на Github.</p>
|
||||
<div class="footnote">
|
||||
<hr />
|
||||
<ol>
|
||||
<li id="fn:1">
|
||||
<p>Википедия <a href="https://ru.wikipedia.org/wiki/Vagrant">Vagrant</a>. <a class="footnote-backref" href="#fnref:1" title="Jump back to footnote 1 in the text">↩</a></p>
|
||||
</li>
|
||||
<li id="fn:2">
|
||||
<p>Википедия <a href="https://ru.wikipedia.org/wiki/Distcc">distcc</a>. <a class="footnote-backref" href="#fnref:2" title="Jump back to footnote 2 in the text">↩</a></p>
|
||||
</li>
|
||||
<li id="fn:3">
|
||||
<p>Исходный код ядра можно найти <a href="https://cdn.kernel.org/pub/linux/kernel/v6.x/linux-6.13.tar.gz">здесь</a>. <a class="footnote-backref" href="#fnref:3" title="Jump back to footnote 3 in the text">↩</a></p>
|
||||
</li>
|
||||
</ol>
|
||||
</div>
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
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|
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2025-06-02
|
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526
linux/index.html
Normal file
526
linux/index.html
Normal file
@@ -0,0 +1,526 @@
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|
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Очередные записки очередного гика
|
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|
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|
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Linux
|
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||||
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<h1 id="linux">Linux</h1>
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<h2 id="2024-11-01">2024-11-01 <a href="manpage/">Немного про мануалы</a></h2>
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<h2 id="2025-01-24">2025-01-24 <a href="distrant/">Немного про распределенную компиляцию</a></h2>
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|
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<link rel="stylesheet" href="../../assets/stylesheets/main.342714a4.min.css">
|
||||
|
||||
|
||||
<link rel="stylesheet" href="../../assets/stylesheets/palette.06af60db.min.css">
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
|
||||
<link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Roboto:300,300i,400,400i,700,700i%7CJetBrains+Mono:400,400i,700,700i&display=fallback">
|
||||
<style>:root{--md-text-font:"Roboto";--md-code-font:"JetBrains Mono"}</style>
|
||||
|
||||
|
||||
|
||||
<script>__md_scope=new URL("../..",location),__md_hash=e=>[...e].reduce(((e,_)=>(e<<5)-e+_.charCodeAt(0)),0),__md_get=(e,_=localStorage,t=__md_scope)=>JSON.parse(_.getItem(t.pathname+"."+e)),__md_set=(e,_,t=localStorage,a=__md_scope)=>{try{t.setItem(a.pathname+"."+e,JSON.stringify(_))}catch(e){}}</script>
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
</head>
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
<body dir="ltr" data-md-color-scheme="default" data-md-color-primary="green" data-md-color-accent="indigo">
|
||||
|
||||
|
||||
<input class="md-toggle" data-md-toggle="drawer" type="checkbox" id="__drawer" autocomplete="off">
|
||||
<input class="md-toggle" data-md-toggle="search" type="checkbox" id="__search" autocomplete="off">
|
||||
<label class="md-overlay" for="__drawer"></label>
|
||||
<div data-md-component="skip">
|
||||
|
||||
|
||||
<a href="#_1" class="md-skip">
|
||||
Skip to content
|
||||
</a>
|
||||
|
||||
</div>
|
||||
<div data-md-component="announce">
|
||||
|
||||
</div>
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
<header class="md-header md-header--shadow" data-md-component="header">
|
||||
<nav class="md-header__inner md-grid" aria-label="Header">
|
||||
<a href="../.." title="Очередные записки очередного гика" class="md-header__button md-logo" aria-label="Очередные записки очередного гика" data-md-component="logo">
|
||||
|
||||
|
||||
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M12 8a3 3 0 0 0 3-3 3 3 0 0 0-3-3 3 3 0 0 0-3 3 3 3 0 0 0 3 3m0 3.54C9.64 9.35 6.5 8 3 8v11c3.5 0 6.64 1.35 9 3.54 2.36-2.19 5.5-3.54 9-3.54V8c-3.5 0-6.64 1.35-9 3.54"/></svg>
|
||||
|
||||
</a>
|
||||
<label class="md-header__button md-icon" for="__drawer">
|
||||
|
||||
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M3 6h18v2H3zm0 5h18v2H3zm0 5h18v2H3z"/></svg>
|
||||
</label>
|
||||
<div class="md-header__title" data-md-component="header-title">
|
||||
<div class="md-header__ellipsis">
|
||||
<div class="md-header__topic">
|
||||
<span class="md-ellipsis">
|
||||
Очередные записки очередного гика
|
||||
</span>
|
||||
</div>
|
||||
<div class="md-header__topic" data-md-component="header-topic">
|
||||
<span class="md-ellipsis">
|
||||
|
||||
Немного про мануалы
|
||||
|
||||
</span>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
|
||||
|
||||
<form class="md-header__option" data-md-component="palette">
|
||||
|
||||
|
||||
|
||||
|
||||
<input class="md-option" data-md-color-media="" data-md-color-scheme="default" data-md-color-primary="green" data-md-color-accent="indigo" aria-label="Switch to dark mode" type="radio" name="__palette" id="__palette_0">
|
||||
|
||||
<label class="md-header__button md-icon" title="Switch to dark mode" for="__palette_1" hidden>
|
||||
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M17 7H7a5 5 0 0 0-5 5 5 5 0 0 0 5 5h10a5 5 0 0 0 5-5 5 5 0 0 0-5-5m0 8a3 3 0 0 1-3-3 3 3 0 0 1 3-3 3 3 0 0 1 3 3 3 3 0 0 1-3 3"/></svg>
|
||||
</label>
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
<input class="md-option" data-md-color-media="" data-md-color-scheme="slate" data-md-color-primary="teal" data-md-color-accent="indigo" aria-label="Switch to light mode" type="radio" name="__palette" id="__palette_1">
|
||||
|
||||
<label class="md-header__button md-icon" title="Switch to light mode" for="__palette_0" hidden>
|
||||
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M17 6H7c-3.31 0-6 2.69-6 6s2.69 6 6 6h10c3.31 0 6-2.69 6-6s-2.69-6-6-6m0 10H7c-2.21 0-4-1.79-4-4s1.79-4 4-4h10c2.21 0 4 1.79 4 4s-1.79 4-4 4M7 9c-1.66 0-3 1.34-3 3s1.34 3 3 3 3-1.34 3-3-1.34-3-3-3"/></svg>
|
||||
</label>
|
||||
|
||||
|
||||
</form>
|
||||
|
||||
|
||||
|
||||
<script>var palette=__md_get("__palette");if(palette&&palette.color){if("(prefers-color-scheme)"===palette.color.media){var media=matchMedia("(prefers-color-scheme: light)"),input=document.querySelector(media.matches?"[data-md-color-media='(prefers-color-scheme: light)']":"[data-md-color-media='(prefers-color-scheme: dark)']");palette.color.media=input.getAttribute("data-md-color-media"),palette.color.scheme=input.getAttribute("data-md-color-scheme"),palette.color.primary=input.getAttribute("data-md-color-primary"),palette.color.accent=input.getAttribute("data-md-color-accent")}for(var[key,value]of Object.entries(palette.color))document.body.setAttribute("data-md-color-"+key,value)}</script>
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
<label class="md-header__button md-icon" for="__search">
|
||||
|
||||
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M9.5 3A6.5 6.5 0 0 1 16 9.5c0 1.61-.59 3.09-1.56 4.23l.27.27h.79l5 5-1.5 1.5-5-5v-.79l-.27-.27A6.52 6.52 0 0 1 9.5 16 6.5 6.5 0 0 1 3 9.5 6.5 6.5 0 0 1 9.5 3m0 2C7 5 5 7 5 9.5S7 14 9.5 14 14 12 14 9.5 12 5 9.5 5"/></svg>
|
||||
</label>
|
||||
<div class="md-search" data-md-component="search" role="dialog">
|
||||
<label class="md-search__overlay" for="__search"></label>
|
||||
<div class="md-search__inner" role="search">
|
||||
<form class="md-search__form" name="search">
|
||||
<input type="text" class="md-search__input" name="query" aria-label="Search" placeholder="Search" autocapitalize="off" autocorrect="off" autocomplete="off" spellcheck="false" data-md-component="search-query" required>
|
||||
<label class="md-search__icon md-icon" for="__search">
|
||||
|
||||
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M9.5 3A6.5 6.5 0 0 1 16 9.5c0 1.61-.59 3.09-1.56 4.23l.27.27h.79l5 5-1.5 1.5-5-5v-.79l-.27-.27A6.52 6.52 0 0 1 9.5 16 6.5 6.5 0 0 1 3 9.5 6.5 6.5 0 0 1 9.5 3m0 2C7 5 5 7 5 9.5S7 14 9.5 14 14 12 14 9.5 12 5 9.5 5"/></svg>
|
||||
|
||||
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11z"/></svg>
|
||||
</label>
|
||||
<nav class="md-search__options" aria-label="Search">
|
||||
|
||||
<button type="reset" class="md-search__icon md-icon" title="Clear" aria-label="Clear" tabindex="-1">
|
||||
|
||||
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M19 6.41 17.59 5 12 10.59 6.41 5 5 6.41 10.59 12 5 17.59 6.41 19 12 13.41 17.59 19 19 17.59 13.41 12z"/></svg>
|
||||
</button>
|
||||
</nav>
|
||||
|
||||
</form>
|
||||
<div class="md-search__output">
|
||||
<div class="md-search__scrollwrap" tabindex="0" data-md-scrollfix>
|
||||
<div class="md-search-result" data-md-component="search-result">
|
||||
<div class="md-search-result__meta">
|
||||
Initializing search
|
||||
</div>
|
||||
<ol class="md-search-result__list" role="presentation"></ol>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
|
||||
|
||||
|
||||
<div class="md-header__source">
|
||||
<a href="https://github.com/rustbas/blog" title="Go to repository" class="md-source" data-md-component="source">
|
||||
<div class="md-source__icon md-icon">
|
||||
|
||||
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><!--! Font Awesome Free 6.7.2 by @fontawesome - https://fontawesome.com License - https://fontawesome.com/license/free (Icons: CC BY 4.0, Fonts: SIL OFL 1.1, Code: MIT License) Copyright 2024 Fonticons, Inc.--><path d="M216.29 158.39H137C97 147.9 6.51 150.63 6.51 233.18c0 30.09 15 51.23 35 61-25.1 23-37 33.85-37 49.21 0 11 4.47 21.14 17.89 26.81C8.13 383.61 0 393.35 0 411.65c0 32.11 28.05 50.82 101.63 50.82 70.75 0 111.79-26.42 111.79-73.18 0-58.66-45.16-56.5-151.63-63l13.43-21.55c27.27 7.58 118.7 10 118.7-67.89 0-18.7-7.73-31.71-15-41.07l37.41-2.84zm-63.42 241.9c0 32.06-104.89 32.1-104.89 2.43 0-8.14 5.27-15 10.57-21.54 77.71 5.3 94.32 3.37 94.32 19.11m-50.81-134.58c-52.8 0-50.46-71.16 1.2-71.16 49.54 0 50.82 71.16-1.2 71.16m133.3 100.51v-32.1c26.75-3.66 27.24-2 27.24-11V203.61c0-8.5-2.05-7.38-27.24-16.26l4.47-32.92H324v168.71c0 6.51.4 7.32 6.51 8.14l20.73 2.84v32.1zm52.45-244.31c-23.17 0-36.59-13.43-36.59-36.61s13.42-35.77 36.59-35.77c23.58 0 37 12.62 37 35.77s-13.42 36.61-37 36.61M512 350.46c-17.49 8.53-43.1 16.26-66.28 16.26-48.38 0-66.67-19.5-66.67-65.46V194.75c0-5.42 1.05-4.06-31.71-4.06V154.5c35.78-4.07 50-22 54.47-66.27h38.63c0 65.83-1.34 61.81 3.26 61.81H501v40.65h-60.56v97.15c0 6.92-4.92 51.41 60.57 26.84z"/></svg>
|
||||
</div>
|
||||
<div class="md-source__repository">
|
||||
GitHub
|
||||
</div>
|
||||
</a>
|
||||
</div>
|
||||
|
||||
</nav>
|
||||
|
||||
</header>
|
||||
|
||||
<div class="md-container" data-md-component="container">
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
<main class="md-main" data-md-component="main">
|
||||
<div class="md-main__inner md-grid">
|
||||
|
||||
|
||||
|
||||
<div class="md-sidebar md-sidebar--primary" data-md-component="sidebar" data-md-type="navigation" >
|
||||
<div class="md-sidebar__scrollwrap">
|
||||
<div class="md-sidebar__inner">
|
||||
|
||||
|
||||
|
||||
|
||||
<nav class="md-nav md-nav--primary" aria-label="Navigation" data-md-level="0">
|
||||
<label class="md-nav__title" for="__drawer">
|
||||
<a href="../.." title="Очередные записки очередного гика" class="md-nav__button md-logo" aria-label="Очередные записки очередного гика" data-md-component="logo">
|
||||
|
||||
|
||||
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M12 8a3 3 0 0 0 3-3 3 3 0 0 0-3-3 3 3 0 0 0-3 3 3 3 0 0 0 3 3m0 3.54C9.64 9.35 6.5 8 3 8v11c3.5 0 6.64 1.35 9 3.54 2.36-2.19 5.5-3.54 9-3.54V8c-3.5 0-6.64 1.35-9 3.54"/></svg>
|
||||
|
||||
</a>
|
||||
Очередные записки очередного гика
|
||||
</label>
|
||||
|
||||
<div class="md-nav__source">
|
||||
<a href="https://github.com/rustbas/blog" title="Go to repository" class="md-source" data-md-component="source">
|
||||
<div class="md-source__icon md-icon">
|
||||
|
||||
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><!--! Font Awesome Free 6.7.2 by @fontawesome - https://fontawesome.com License - https://fontawesome.com/license/free (Icons: CC BY 4.0, Fonts: SIL OFL 1.1, Code: MIT License) Copyright 2024 Fonticons, Inc.--><path d="M216.29 158.39H137C97 147.9 6.51 150.63 6.51 233.18c0 30.09 15 51.23 35 61-25.1 23-37 33.85-37 49.21 0 11 4.47 21.14 17.89 26.81C8.13 383.61 0 393.35 0 411.65c0 32.11 28.05 50.82 101.63 50.82 70.75 0 111.79-26.42 111.79-73.18 0-58.66-45.16-56.5-151.63-63l13.43-21.55c27.27 7.58 118.7 10 118.7-67.89 0-18.7-7.73-31.71-15-41.07l37.41-2.84zm-63.42 241.9c0 32.06-104.89 32.1-104.89 2.43 0-8.14 5.27-15 10.57-21.54 77.71 5.3 94.32 3.37 94.32 19.11m-50.81-134.58c-52.8 0-50.46-71.16 1.2-71.16 49.54 0 50.82 71.16-1.2 71.16m133.3 100.51v-32.1c26.75-3.66 27.24-2 27.24-11V203.61c0-8.5-2.05-7.38-27.24-16.26l4.47-32.92H324v168.71c0 6.51.4 7.32 6.51 8.14l20.73 2.84v32.1zm52.45-244.31c-23.17 0-36.59-13.43-36.59-36.61s13.42-35.77 36.59-35.77c23.58 0 37 12.62 37 35.77s-13.42 36.61-37 36.61M512 350.46c-17.49 8.53-43.1 16.26-66.28 16.26-48.38 0-66.67-19.5-66.67-65.46V194.75c0-5.42 1.05-4.06-31.71-4.06V154.5c35.78-4.07 50-22 54.47-66.27h38.63c0 65.83-1.34 61.81 3.26 61.81H501v40.65h-60.56v97.15c0 6.92-4.92 51.41 60.57 26.84z"/></svg>
|
||||
</div>
|
||||
<div class="md-source__repository">
|
||||
GitHub
|
||||
</div>
|
||||
</a>
|
||||
</div>
|
||||
|
||||
<ul class="md-nav__list" data-md-scrollfix>
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
<li class="md-nav__item">
|
||||
<a href="../../maths/" class="md-nav__link">
|
||||
|
||||
|
||||
|
||||
<span class="md-ellipsis">
|
||||
Математика
|
||||
|
||||
</span>
|
||||
|
||||
|
||||
</a>
|
||||
</li>
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
<li class="md-nav__item">
|
||||
<a href="../" class="md-nav__link">
|
||||
|
||||
|
||||
|
||||
<span class="md-ellipsis">
|
||||
Linux
|
||||
|
||||
</span>
|
||||
|
||||
|
||||
</a>
|
||||
</li>
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
<li class="md-nav__item">
|
||||
<a href="../../common/" class="md-nav__link">
|
||||
|
||||
|
||||
|
||||
<span class="md-ellipsis">
|
||||
Общее
|
||||
|
||||
</span>
|
||||
|
||||
|
||||
</a>
|
||||
</li>
|
||||
|
||||
|
||||
|
||||
</ul>
|
||||
</nav>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
|
||||
|
||||
|
||||
<div class="md-sidebar md-sidebar--secondary" data-md-component="sidebar" data-md-type="toc" >
|
||||
<div class="md-sidebar__scrollwrap">
|
||||
<div class="md-sidebar__inner">
|
||||
|
||||
|
||||
<nav class="md-nav md-nav--secondary" aria-label="Table of contents">
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
<label class="md-nav__title" for="__toc">
|
||||
<span class="md-nav__icon md-icon"></span>
|
||||
Table of contents
|
||||
</label>
|
||||
<ul class="md-nav__list" data-md-component="toc" data-md-scrollfix>
|
||||
|
||||
<li class="md-nav__item">
|
||||
<a href="#_2" class="md-nav__link">
|
||||
<span class="md-ellipsis">
|
||||
Мотивация
|
||||
</span>
|
||||
</a>
|
||||
|
||||
</li>
|
||||
|
||||
<li class="md-nav__item">
|
||||
<a href="#_3" class="md-nav__link">
|
||||
<span class="md-ellipsis">
|
||||
Способы
|
||||
</span>
|
||||
</a>
|
||||
|
||||
</li>
|
||||
|
||||
<li class="md-nav__item">
|
||||
<a href="#_4" class="md-nav__link">
|
||||
<span class="md-ellipsis">
|
||||
Процесс
|
||||
</span>
|
||||
</a>
|
||||
|
||||
<nav class="md-nav" aria-label="Процесс">
|
||||
<ul class="md-nav__list">
|
||||
|
||||
<li class="md-nav__item">
|
||||
<a href="#pandoc" class="md-nav__link">
|
||||
<span class="md-ellipsis">
|
||||
pandoc
|
||||
</span>
|
||||
</a>
|
||||
|
||||
</li>
|
||||
|
||||
<li class="md-nav__item">
|
||||
<a href="#_5" class="md-nav__link">
|
||||
<span class="md-ellipsis">
|
||||
Написание мануала
|
||||
</span>
|
||||
</a>
|
||||
|
||||
</li>
|
||||
|
||||
<li class="md-nav__item">
|
||||
<a href="#_6" class="md-nav__link">
|
||||
<span class="md-ellipsis">
|
||||
Как пользоваться
|
||||
</span>
|
||||
</a>
|
||||
|
||||
</li>
|
||||
|
||||
</ul>
|
||||
</nav>
|
||||
|
||||
</li>
|
||||
|
||||
</ul>
|
||||
|
||||
</nav>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
|
||||
|
||||
|
||||
<div class="md-content" data-md-component="content">
|
||||
<article class="md-content__inner md-typeset">
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
<h1 id="_1">Немного про мануалы</h1>
|
||||
<h2 id="_2">Мотивация</h2>
|
||||
<p>Какое-то время назад возникла задача:
|
||||
написать мануал к репозиторию с дотфайлами.</p>
|
||||
<p>Вообще, сложилось впечатление, что сейчас большая часть документации создается
|
||||
либо автоматически, либо техническими писателями. Причем сама документация
|
||||
лежит на каком-то сайте, например, <strong>github.io</strong> и нечасто можно получить
|
||||
к ней доступ офлайн. В таких случаях спасают <code>man</code>-ы.</p>
|
||||
<h2 id="_3">Способы</h2>
|
||||
<p>Вообще, сам мануал -- это документ для <a href="https://en.wikipedia.org/wiki/Groff_(software)">препроцессора</a> <code>groff</code>, который
|
||||
умеет читать команда <code>man</code>, и который можно перевести в другие форматы,
|
||||
при желании.</p>
|
||||
<p><a href="https://www.cyberciti.biz/faq/linux-unix-creating-a-manpage/">Пример</a> (<code>test.1</code>):</p>
|
||||
<div class="highlight"><pre><span></span><code><span class="p">.</span><span class="c">\" Manpage for nuseradd.</span>
|
||||
<span class="p">.</span><span class="c">\" Contact vivek@nixcraft.net.in to correct errors or typos.</span>
|
||||
.<span class="k">TH</span> <span class="s">man</span> <span class="m">8</span> <span class="s2">"06 May 2010"</span> <span class="s2">"1.0"</span> <span class="s2">"nuseradd man page"</span>
|
||||
.<span class="k">SH</span> <span class="s">NAME</span>
|
||||
nuseradd <span class="se">\-</span> create a new LDAP user
|
||||
.<span class="k">SH</span> <span class="s">SYNOPSIS</span>
|
||||
nuseradd [USERNAME]
|
||||
.<span class="k">SH</span> <span class="s">DESCRIPTION</span>
|
||||
nuseradd is high level shell program for adding users to LDAP server. On Debian, administrators should usually use nuseradd.debian(8) instead.
|
||||
.<span class="k">SH</span> <span class="s">OPTIONS</span>
|
||||
The nuseradd does not take any options. However, you can supply username.
|
||||
.<span class="k">SH</span> <span class="s">SEE</span> <span class="s">ALSO</span>
|
||||
useradd(8), passwd(5), nuseradd.debian(8)
|
||||
.<span class="k">SH</span> <span class="s">BUGS</span>
|
||||
No known bugs.
|
||||
.<span class="k">SH</span> <span class="s">AUTHOR</span>
|
||||
Vivek Gite (vivek@nixcraft.net.in)
|
||||
</code></pre></div>
|
||||
<p>Если выполнить команду <code>man ./test.1</code>, то увидите следующее:
|
||||
<img alt="Пример manpage" src="../assets/manpage.jpg" /></p>
|
||||
<p>Красиво, но не слишком удобно для создания. Я использовал другой -- через
|
||||
конвертацию <code>markdown</code>-файлов.</p>
|
||||
<h2 id="_4">Процесс</h2>
|
||||
<h3 id="pandoc"><code>pandoc</code></h3>
|
||||
<p>Для начала, нужна сама <a href="https://en.wikipedia.org/wiki/Pandoc">программа</a> <code>pandoc</code>. Ставим:</p>
|
||||
<div class="highlight"><pre><span></span><code>sudo<span class="w"> </span>apt<span class="w"> </span>install<span class="w"> </span>pandoc
|
||||
</code></pre></div>
|
||||
<h3 id="_5">Написание мануала</h3>
|
||||
<p>Само написание мануала, думаю, стоит опустить. Синтаксис <code>markdown</code>-а
|
||||
можно посмотреть на википедии. </p>
|
||||
<p>Есть только два нюанса при написании:</p>
|
||||
<ol>
|
||||
<li>В начале нужно указать что-то вроде
|
||||
<code>% dotfiles(1) | dotfiles usage documentation</code> </li>
|
||||
<li>По умолчанию, <code>pandoc</code> распознает каждую строку как отдельный
|
||||
параграф. Из-за этого между строками в результате получается
|
||||
разрыв. Чтобы избежать этого, нужно в конце строки добавлять <code>\</code>.</li>
|
||||
</ol>
|
||||
<p>Сконвертировать файл можно командой:
|
||||
<div class="highlight"><pre><span></span><code>pandoc<span class="w"> </span>--standalone<span class="w"> </span>--to<span class="w"> </span>man<span class="w"> </span>manpage.md<span class="w"> </span>--output<span class="o">=</span>dotfiles.1<span class="w"> </span>
|
||||
</code></pre></div></p>
|
||||
<p>Также, стоит отметить принятое оглавление. Есть три обязательные секции:</p>
|
||||
<ul>
|
||||
<li><strong>NAME</strong> - название</li>
|
||||
<li><strong>SYNOPSIS</strong> - краткое описание (в одну строку) команды или примеры аргументов
|
||||
или ключей.</li>
|
||||
<li><strong>DESCRIPTION</strong> - подробное описание команды</li>
|
||||
</ul>
|
||||
<p>Также, можно указать:</p>
|
||||
<ul>
|
||||
<li><strong>OPTIONS</strong> - описание опций/аргументов.</li>
|
||||
<li><strong>EXAMPLES</strong> - примеры запуска.</li>
|
||||
<li><strong>FILES</strong> - описание файлов, если есть файлы конфигурации.</li>
|
||||
<li><strong>ENVIRONMENT</strong> - описание переменных окружения.</li>
|
||||
<li><strong>BUGS</strong> - Известные баги/ошибки.</li>
|
||||
<li><strong>AUTHORS</strong> - авторы.</li>
|
||||
<li><strong>SEE ALSO</strong> - референсы к другим мануалам.</li>
|
||||
<li><strong>COPYRIGHT | LICENSE</strong> - текст лицензии.</li>
|
||||
</ul>
|
||||
<h3 id="_6">Как пользоваться</h3>
|
||||
<p>Для того, чтобы можно было удобно пользоваться написанным мануалом,
|
||||
нужно:</p>
|
||||
<ol>
|
||||
<li>Сжать его -- <code>gzip dotfiles.1</code>.</li>
|
||||
<li>Поместить архив в любую папку, из которой читает <code>man</code> в директорию <code>man1</code>.</li>
|
||||
</ol>
|
||||
<p>Для того, чтобы узнать директории, из которых читает <code>man</code>,
|
||||
можно выполнить команду <code>manpath</code></p>
|
||||
<p>В моем случае, я поместил все в директорию <code>$HOME/.local/share/man/man1</code>,
|
||||
так как <code>$HOME/.local/share</code> это как раз <code>$XDG_DATA_HOME</code>
|
||||
(см. <a href="https://specifications.freedesktop.org/basedir-spec/latest/">спецификацию XDG</a>).</p>
|
||||
<p>Результат (<a href="https://github.com/rustbas/dotfilesV2/tree/potatoless-pc">репозиторий</a>):</p>
|
||||
<p><img alt="dotfiles manual" src="../assets/result.png" /></p>
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
<aside class="md-source-file">
|
||||
|
||||
|
||||
<span class="md-source-file__fact">
|
||||
<span class="md-icon" title="Last update">
|
||||
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M21 13.1c-.1 0-.3.1-.4.2l-1 1 2.1 2.1 1-1c.2-.2.2-.6 0-.8l-1.3-1.3c-.1-.1-.2-.2-.4-.2m-1.9 1.8-6.1 6V23h2.1l6.1-6.1zM12.5 7v5.2l4 2.4-1 1L11 13V7zM11 21.9c-5.1-.5-9-4.8-9-9.9C2 6.5 6.5 2 12 2c5.3 0 9.6 4.1 10 9.3-.3-.1-.6-.2-1-.2s-.7.1-1 .2C19.6 7.2 16.2 4 12 4c-4.4 0-8 3.6-8 8 0 4.1 3.1 7.5 7.1 7.9l-.1.2z"/></svg>
|
||||
</span>
|
||||
2025-06-02
|
||||
</span>
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
</aside>
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
</article>
|
||||
</div>
|
||||
|
||||
|
||||
<script>var target=document.getElementById(location.hash.slice(1));target&&target.name&&(target.checked=target.name.startsWith("__tabbed_"))</script>
|
||||
</div>
|
||||
|
||||
</main>
|
||||
|
||||
<footer class="md-footer">
|
||||
|
||||
<div class="md-footer-meta md-typeset">
|
||||
<div class="md-footer-meta__inner md-grid">
|
||||
<div class="md-copyright">
|
||||
|
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|
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Made with
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||||
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</a>
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|
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|
||||
</footer>
|
||||
|
||||
</div>
|
||||
<div class="md-dialog" data-md-component="dialog">
|
||||
<div class="md-dialog__inner md-typeset"></div>
|
||||
</div>
|
||||
|
||||
<div class="md-progress" data-md-component="progress" role="progressbar"></div>
|
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|
||||
|
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<script id="__config" type="application/json">{"base": "../..", "features": ["navigation.instant", "navigation.instant.progress", "header.autohide"], "search": "../../assets/javascripts/workers/search.d50fe291.min.js", "tags": null, "translations": {"clipboard.copied": "Copied to clipboard", "clipboard.copy": "Copy to clipboard", "search.result.more.one": "1 more on this page", "search.result.more.other": "# more on this page", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents", "search.result.placeholder": "Type to start searching", "search.result.term.missing": "Missing", "select.version": "Select version"}, "version": null}</script>
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<script src="https://unpkg.com/mathjax@3/es5/tex-mml-chtml.js"></script>
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|
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</body>
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</html>
|
||||
Reference in New Issue
Block a user