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Оптимизация СПО для платформы Эльбрус (OSSDEVCONF-2021) - История изменений
2026-05-05T11:22:38Z
История изменений этой страницы в вики
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StasFomin в 00:44, 20 мая 2022
2022-05-20T00:44:54Z
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<td colspan='2' style="background-color: white; color:black; text-align: center;">Версия 00:44, 20 мая 2022</td>
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* {{Speaker|Михаил Шигорин}}
* {{Speaker|Андрей Савченко}}
<blockquote>
Рассмотрены различные методы оптимизации ПО для архитектуры Эльбрус.
Представлены результаты оптимизации СПО проектов и даются практические рекомендации по подобной работе.
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== Thesis ==</pre></div></td></tr></table>
StasFomin
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StasFomin в 12:05, 5 ноября 2021
2021-11-05T12:05:20Z
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<td colspan='2' style="background-color: white; color:black; text-align: center;">Версия 12:05, 5 ноября 2021</td>
</tr><tr class="wikEdDiffTableRow"><td class="wikEdDiffTableCell" colspan="4"><div class="wikEdDiffContainer" id="wikEdDiffContainerExt"><pre class="wikEdDiffFragment" style="white-space: pre-wrap;">|}
Результаты для основных кодеков в сёк (меньше — лучше) в режиме декодирования. Тестировалось на 720p, 201 сёк. base — исходный код, mcst — бинарные файлы МЦСТ, open — опубликованное открытое решение.
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</span></span><references/>
* Эльбрус upstream https://www.altlinux.org/Эльбрус/upstream
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[[Категория:OSSDEVCONF-2021]]
[[Категория:ALTLinux на Эльбрусе]]
[[Категория:Эльбрус]]</pre></div></td></tr>
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StasFomin
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StasFomin в 12:02, 12 октября 2021
2021-10-12T12:02:04Z
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<td colspan='2' style="background-color: white; color:black; text-align: center;">← Предыдущая</td>
<td colspan='2' style="background-color: white; color:black; text-align: center;">Версия 12:02, 12 октября 2021</td>
</tr><tr class="wikEdDiffTableRow"><td class="wikEdDiffTableCell" colspan="4"><div class="wikEdDiffContainer" id="wikEdDiffContainerExt"><pre class="wikEdDiffFragment" style="white-space: pre-wrap;">|}
Результаты для основных кодеков в сёк (меньше — лучше) в режиме декодирования. Тестировалось на 720p, 201 сёк. base — исходный код, mcst — бинарные файлы МЦСТ, open — опубликованное открытое решение.
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</span></span><references/>
* Эльбрус upstream https://www.altlinux.org/Эльбрус/upstream
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[[Категория:Эльбрус]]</pre></div></td></tr></table>
StasFomin
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StasFomin в 14:54, 14 сентября 2021
2021-09-14T14:54:09Z
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<td colspan='2' style="background-color: white; color:black; text-align: center;">Версия 14:54, 14 сентября 2021</td>
</tr><tr class="wikEdDiffTableRow"><td class="wikEdDiffTableCell" colspan="4"><div class="wikEdDiffContainer" id="wikEdDiffContainerExt"><pre class="wikEdDiffFragment" style="white-space: pre-wrap;">[[File:{{#setmainimage:Оптимизация СПО для платформы Эльбрус (OSSDEVCONF-2021)!.jpg}}|center|640px]]
{{LinksSection}}
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<references/>
* Эльбрус upstream https://www.altlinux.org/Эльбрус/upstream
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[[Категория:Эльбрус]]<span class="wikEdDiffDelete" title="Удалено"><span class="wikEdDiffNewline">
</span>[[Категория:Draft]]</span></pre></div></td></tr></table>
StasFomin
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StasFomin в 14:40, 31 августа 2021
2021-08-31T14:40:55Z
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<td colspan='2' style="background-color: white; color:black; text-align: center;">Версия 14:40, 31 августа 2021</td>
</tr><tr class="wikEdDiffTableRow"><td class="wikEdDiffTableCell" colspan="4"><div class="wikEdDiffContainer" id="wikEdDiffContainerExt"><pre class="wikEdDiffFragment" style="white-space: pre-wrap;">|}
Результаты для основных кодеков в сёк (меньше — лучше) в режиме декодирования. Тестировалось на 720p, 201 сёк. base — исходный код, mcst — бинарные файлы МЦСТ, open — опубликованное открытое решение.
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[[File:{{#setmainimage:Оптимизация СПО для платформы Эльбрус (OSSDEVCONF-2021)!.jpg}}|center|640px]]
{{LinksSection}}
<!-- <blockquote>[©]</blockquote> -->
<references/>
* Эльбрус upstream https://www.altlinux.org/Эльбрус/upstream
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[[Категория:OSSDEVCONF-2021]]
[[Категория:ALTLinux на Эльбрусе]]
[[Категория:Эльбрус]]
[[Категория:Draft]]</pre></div></td></tr></table>
StasFomin
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StasFomin в 13:10, 27 августа 2021
2021-08-27T13:10:09Z
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<td colspan='2' style="background-color: white; color:black; text-align: center;">Версия 13:10, 27 августа 2021</td>
</tr><tr class="wikEdDiffTableRow"><td class="wikEdDiffTableCell" colspan="4"><div class="wikEdDiffContainer" id="wikEdDiffContainerExt"><pre class="wikEdDiffFragment" style="white-space: pre-wrap;">[[File:{{#setmainimage:Оптимизация СПО для платформы Эльбрус (OSSDEVCONF-2021)!.jpg}}|center|640px]]
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* Эльбрус upstream https://www.altlinux.org/Эльбрус/upstream
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[[Категория:OSSDEVCONF-2021]]
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[[Категория:Эльбрус]]<span class="wikEdDiffInsert" title="Вставлено"><span class="wikEdDiffNewline">
</span>[[Категория:Draft]]</span></pre></div></td></tr></table>
StasFomin
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StasFomin в 13:07, 27 августа 2021
2021-08-27T13:07:26Z
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<td colspan='2' style="background-color: white; color:black; text-align: center;">Версия 13:07, 27 августа 2021</td>
</tr><tr class="wikEdDiffTableRow"><td class="wikEdDiffTableCell" colspan="4"><div class="wikEdDiffContainer" id="wikEdDiffContainerExt"><pre class="wikEdDiffFragment" style="white-space: pre-wrap;">[[File:{{#setmainimage:Оптимизация СПО для платформы Эльбрус (OSSDEVCONF-2021)!.jpg}}|center|640px]]
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<references/>
* Эльбрус upstream https://www.altlinux.org/Эльбрус/upstream
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[[Категория:OSSDEVCONF-2021]]
[[Категория:ALTLinux на Эльбрусе]]
[[Категория:Эльбрус]]<span class="wikEdDiffDelete" title="Удалено"><span class="wikEdDiffNewline">
</span>[[Категория:Draft]]</span></pre></div></td></tr></table>
StasFomin
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StasFomin в 21:42, 26 августа 2021
2021-08-26T21:42:45Z
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</tr><tr class="wikEdDiffTableRow"><td class="wikEdDiffTableCell" colspan="4"><div class="wikEdDiffContainer" id="wikEdDiffContainerExt"><pre class="wikEdDiffFragment" style="white-space: pre-wrap;">=== Оптимизация для целевого процессора ===
lcc позволяет компилировать как приложения, работающие на любой архитектуре, начиная с заданной (<code>-march</code>), так и для конкретной модели процессора (<code>-mtune</code>). Во втором случае код получается быстрее, но он не будет работать на других моделях процессоров. Эксперименты с ядром показали прирост от <<span class="wikEdDiffDelete" title="Удалено">math<span class="wikEdDiffSpace"><span class="wikEdDiffSpaceSymbol"></span> </span>display="inline"</span><span class="wikEdDiffInsert" title="Вставлено">tt</span>>0.5%</<span class="wikEdDiffDelete" title="Удалено">math</span><span class="wikEdDiffInsert" title="Вставлено">tt</span>> (мало, но статистически достоверно), до <<span class="wikEdDiffDelete" title="Удалено">math<span class="wikEdDiffSpace"><span class="wikEdDiffSpaceSymbol"></span> </span>display="inline"</span><span class="wikEdDiffInsert" title="Вставлено">tt</span>>8%</<span class="wikEdDiffDelete" title="Удалено">math</span><span class="wikEdDiffInsert" title="Вставлено">tt</span>> в случае с 1С+.
=== Профилирование ===</pre></div></td></tr>
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StasFomin
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StasFomin в 21:41, 26 августа 2021
2021-08-26T21:41:18Z
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StasFomin
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StasFomin в 21:35, 26 августа 2021
2021-08-26T21:35:34Z
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<td colspan='2' style="background-color: white; color:black; text-align: center;">Версия 21:35, 26 августа 2021</td>
</tr><tr class="wikEdDiffTableRow"><td class="wikEdDiffTableCell" colspan="4"><div class="wikEdDiffContainer" id="wikEdDiffContainerExt"><pre class="wikEdDiffFragment" style="white-space: pre-wrap;">;{{SpeakerInfo}}:
* {{Speaker|Михаил Шигорин}}
* {{Speaker|Андрей Савченко}}
<blockquote>
<span class="wikEdDiffInsert" title="Вставлено">Рассмотрены<span class="wikEdDiffSpace"><span class="wikEdDiffSpaceSymbol"></span> </span>различные<span class="wikEdDiffSpace"><span class="wikEdDiffSpaceSymbol"></span> </span>методы<span class="wikEdDiffSpace"><span class="wikEdDiffSpaceSymbol"></span> </span>оптимизации<span class="wikEdDiffSpace"><span class="wikEdDiffSpaceSymbol"></span> </span>ПО<span class="wikEdDiffSpace"><span class="wikEdDiffSpaceSymbol"></span> </span>для<span class="wikEdDiffSpace"><span class="wikEdDiffSpaceSymbol"></span> </span>архитектуры<span class="wikEdDiffSpace"><span class="wikEdDiffSpaceSymbol"></span> </span>Эльбрус.<span class="wikEdDiffNewline">
</span>Представлены<span class="wikEdDiffSpace"><span class="wikEdDiffSpaceSymbol"></span> </span>результаты<span class="wikEdDiffSpace"><span class="wikEdDiffSpaceSymbol"></span> </span>оптимизации<span class="wikEdDiffSpace"><span class="wikEdDiffSpaceSymbol"></span> </span>СПО<span class="wikEdDiffSpace"><span class="wikEdDiffSpaceSymbol"></span> </span>проектов<span class="wikEdDiffSpace"><span class="wikEdDiffSpaceSymbol"></span> </span>и<span class="wikEdDiffSpace"><span class="wikEdDiffSpaceSymbol"></span> </span>даются<span class="wikEdDiffSpace"><span class="wikEdDiffSpaceSymbol"></span> </span>практические<span class="wikEdDiffSpace"><span class="wikEdDiffSpaceSymbol"></span> </span>рекомендации<span class="wikEdDiffSpace"><span class="wikEdDiffSpaceSymbol"></span> </span>по<span class="wikEdDiffSpace"><span class="wikEdDiffSpaceSymbol"></span> </span>подобной<span class="wikEdDiffSpace"><span class="wikEdDiffSpaceSymbol"></span> </span>работе.<span class="wikEdDiffNewline">
</span></span></blockquote>
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[[File:Оптимизация СПО для платформы Эльбрус (OSSDEVCONF-2021).pdf|left|page=-|300px]]
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== Thesis ==
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[[File:{{#setmainimage:Оптимизация СПО для платформы Эльбрус (OSSDEVCONF-2021)!.jpg}}|center|640px]]
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<span class="wikEdDiffMarkRight"title="[[Категория:OSSDEVCONF-2021]]
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</span></span><span class="wikEdDiffDelete" title="Удалено">Open-source<span class="wikEdDiffSpace"><span class="wikEdDiffSpaceSymbol"></span> </span>projects]]<span class="wikEdDiffNewline">
</span></span>{{stats|disqus_comments=0|refresh_time=2021-08-25T03:04:36.727032|vimeo_plays=0|youtube_plays=0}}<span class="wikEdDiffInsert wikEdDiffInsertBlank" title="Вставлено"><span class="wikEdDiffNewline">
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</span></span><span class="wikEdDiffBlock"title="◀ Перемещено" id="wikEdDiffBlockExt1"onmouseover="wikEdDiffBlockHandlerExt(undefined, this, 'mouseover');">[[Категория:OSSDEVCONF-2021]]<span class="wikEdDiffNewline">
</span>[[Категория:</span><span class="wikEdDiffInsert" title="Вставлено">ALTLinux<span class="wikEdDiffSpace"><span class="wikEdDiffSpaceSymbol"></span> </span>на<span class="wikEdDiffSpace"><span class="wikEdDiffSpaceSymbol"></span> </span>Эльбрусе]]<span class="wikEdDiffNewline">
</span>[[Категория:Эльбрус]]</span></pre></div></td></tr></table>
StasFomin