# HG changeset patch
# User Ken Miyahira <e175733@ie.u-ryukyu.ac.jp>
# Date 1613393404 -32400
# Node ID f0af437fca3558c3782d9fc163d473ad350ce837
# Parent  424850058f1b925ed764d9ebb530ade950cad2a6
update slide

diff -r 424850058f1b -r f0af437fca35 paper/fig/system-bb.pdf
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diff -r 424850058f1b -r f0af437fca35 paper/fig/system.graffle
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diff -r 424850058f1b -r f0af437fca35 slide/images/container3.png
Binary file slide/images/container3.png has changed
diff -r 424850058f1b -r f0af437fca35 slide/images/fswrite2.png
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diff -r 424850058f1b -r f0af437fca35 slide/images/system-bb.png
Binary file slide/images/system-bb.png has changed
diff -r 424850058f1b -r f0af437fca35 slide/slide.html
--- a/slide/slide.html	Mon Feb 15 19:37:52 2021 +0900
+++ b/slide/slide.html	Mon Feb 15 21:50:04 2021 +0900
@@ -8,7 +8,7 @@
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slide">Next slide</button><button data-bespoke-marp-osc="fullscreen" tabindex="-1" title="Toggle fullscreen (f)">Toggle fullscreen</button><button data-bespoke-marp-osc="presenter" tabindex="-1" title="Open presenter view (p)">Open presenter view</button></div><div id="p"><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="1" data-paginate="true" data-class="title" data-theme="default" data-style="section {
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h1{position:absolute;left:50px;top:35px}div#p>svg>foreignObject>section[data-marpit-advanced-background=background]{display:block!important;padding:0!important}div#p>svg>foreignObject>section[data-marpit-advanced-background=background]:after,div#p>svg>foreignObject>section[data-marpit-advanced-background=background]:before,div#p>svg>foreignObject>section[data-marpit-advanced-background=content]:after,div#p>svg>foreignObject>section[data-marpit-advanced-background=content]:before{display:none!important}div#p>svg>foreignObject>section[data-marpit-advanced-background=background]>div[data-marpit-advanced-background-container]{all:initial;display:flex;flex-direction:row;height:100%;overflow:hidden;width:100%}div#p>svg>foreignObject>section[data-marpit-advanced-background=background]>div[data-marpit-advanced-background-container][data-marpit-advanced-background-direction=vertical]{flex-direction:column}div#p>svg>foreignObject>section[data-marpit-advanced-background=background][data-marpit-advanced-background-split]>div[data-marpit-advanced-background-container]{width:var(--marpit-advanced-background-split,50%)}div#p>svg>foreignObject>section[data-marpit-advanced-background=background][data-marpit-advanced-background-split=right]>div[data-marpit-advanced-background-container]{margin-left:calc(100% - var(--marpit-advanced-background-split, 50%))}div#p>svg>foreignObject>section[data-marpit-advanced-background=background]>div[data-marpit-advanced-background-container]>figure{all:initial;background-position:center;background-repeat:no-repeat;background-size:cover;flex:auto;margin:0}div#p>svg>foreignObject>section[data-marpit-advanced-background=content],div#p>svg>foreignObject>section[data-marpit-advanced-background=pseudo]{background:transparent!important}div#p>svg>foreignObject>section[data-marpit-advanced-background=pseudo],div#p>svg[data-marpit-svg]>foreignObject[data-marpit-advanced-background=pseudo]{pointer-events:none!important}div#p>svg>foreignObject>section[data-marpit-advanced-background-split]{width:100%;height:100%}</style></head><body><div class="bespoke-marp-osc"><button data-bespoke-marp-osc="prev" tabindex="-1" title="Previous slide">Previous slide</button><span data-bespoke-marp-osc="page"></span><button data-bespoke-marp-osc="next" tabindex="-1" title="Next slide">Next slide</button><button data-bespoke-marp-osc="fullscreen" tabindex="-1" title="Toggle fullscreen (f)">Toggle fullscreen</button><button data-bespoke-marp-osc="presenter" tabindex="-1" title="Open presenter view (p)">Open presenter view</button></div><div id="p"><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="1" data-paginate="true" data-class="title" data-theme="default" data-style="section {
   background-color: #FFFFFF;
   font-size: 28px;
   color: #4b4b4b;
@@ -22,12 +22,15 @@
 section.title h1 {
   text-align: center;
 }
+section.title h3 {
+  text-align: center;
+}
 
 section.slide h1 {
   position: absolute;
   left: 50px; top: 35px;
 }
-" class="title" data-marpit-pagination="1" data-marpit-pagination-total="25" style="--paginate:true;--class:title;--theme:default;
+" class="title" data-marpit-pagination="1" data-marpit-pagination-total="18" style="--paginate:true;--class:title;--theme:default;
 ;">
 <h1><svg data-marp-fitting="svg"><foreignObject><span data-marp-fitting-svg-content> コンテナ技術を用いた教育情報システムの構築</span></foreignObject></svg></h1>
 <ul>
@@ -57,12 +60,15 @@
 section.title h1 {
   text-align: center;
 }
+section.title h3 {
+  text-align: center;
+}
 
 section.slide h1 {
   position: absolute;
   left: 50px; top: 35px;
 }
-" class="slide" data-marpit-pagination="2" data-marpit-pagination-total="25" style="--paginate:true;--class:slide;--theme:default;
+" class="slide" data-marpit-pagination="2" data-marpit-pagination-total="18" style="--paginate:true;--class:slide;--theme:default;
 ;">
 <h1>学生が自由に利用できる教育情報システムの構築</h1>
 <ul>
@@ -95,41 +101,25 @@
 section.title h1 {
   text-align: center;
 }
+section.title h3 {
+  text-align: center;
+}
 
 section.slide h1 {
   position: absolute;
   left: 50px; top: 35px;
 }
-" class="slide" data-marpit-pagination="3" data-marpit-pagination-total="25" style="--paginate:true;--class:slide;--theme:default;
+" class="slide" data-marpit-pagination="3" data-marpit-pagination-total="18" style="--paginate:true;--class:slide;--theme:default;
 ;">
-<h1>これまでの学生向け学習環境</h1>
-<ul>
-<li>
-<p>VM貸出サービス</p>
-<ul>
-<li>Akatsuki
-<ul>
-<li>申請を行い、Webコントロールパネルから作成する</li>
-</ul>
-</li>
-<li>ie-virsh
+<h1>これまでの学習環境の問題点</h1>
 <ul>
-<li>手元のPCで作成したVMイメージを学科サーバにデプロイできる</li>
-</ul>
-</li>
-</ul>
-</li>
-<li>
-<p>VM貸出サービスのデフォルトスペック</p>
-<ul>
-<li>CPU 1コア</li>
-<li>メモリ 1GB</li>
-<li>ディスク容量 10GB</li>
-</ul>
-</li>
+<li>VM貸出サービスの申請方法がわからない</li>
+<li>貸出サービスが存在することが周知されていなかった</li>
+<li>GPUが搭載されていなく研究室ごとの機器、クラウドサービスが利用された</li>
+<li>VMイメージの保存場所として使用されたGSF2はロックマネージャーの影響が大きかった</li>
 </ul>
 </section>
-</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="4" data-paginate="true" data-class="slide" data-theme="default" data-style="section {
+</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="4" data-paginate="true" data-class="title" data-theme="default" data-style="section {
   background-color: #FFFFFF;
   font-size: 28px;
   color: #4b4b4b;
@@ -143,27 +133,20 @@
 section.title h1 {
   text-align: center;
 }
+section.title h3 {
+  text-align: center;
+}
 
 section.slide h1 {
   position: absolute;
   left: 50px; top: 35px;
 }
-" class="slide" data-marpit-pagination="4" data-marpit-pagination-total="25" style="--paginate:true;--class:slide;--theme:default;
+" class="title" data-marpit-pagination="4" data-marpit-pagination-total="18" style="--paginate:true;--class:title;--theme:default;
 ;">
-<h1>これまでの学習環境の問題点</h1>
-<ul>
-<li>VM貸出サービスの一部学生は申請の方法が分からなかったり、貸出サービスがあることが周知されていなかったため、旧システムのリソースが余っていた</li>
-</ul>
-<br />
-<ul>
-<li>旧システムにはGPUが搭載されていないため、貸出サービスではなく研究室ごとの機器、クラウドサービスが多く利用された</li>
-</ul>
-<br />
-<ul>
-<li>VMイメージの保存場所に使用していたGFS2はロックマネージャの影響が大きく、サーバ1台でもクラスタに参加できないとGFS2上にアクセスできなくなった</li>
-</ul>
+<h1>教育情報システムの構築</h1>
+<h3>目的: 開かれた見通しの良い教育情報システムを構築する</h3>
 </section>
-</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="5" data-paginate="true" data-class="title" data-theme="default" data-style="section {
+</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="5" data-paginate="true" data-class="slide" data-theme="default" data-style="section {
   background-color: #FFFFFF;
   font-size: 28px;
   color: #4b4b4b;
@@ -177,14 +160,29 @@
 section.title h1 {
   text-align: center;
 }
+section.title h3 {
+  text-align: center;
+}
 
 section.slide h1 {
   position: absolute;
   left: 50px; top: 35px;
 }
-" class="title" data-marpit-pagination="5" data-marpit-pagination-total="25" style="--paginate:true;--class:title;--theme:default;
+" class="slide" data-marpit-pagination="5" data-marpit-pagination-total="18" style="--paginate:true;--class:slide;--theme:default;
 ;">
-<h1>教育情報システムの構築</h1>
+<h1>目的を達成するための構成要素</h1>
+<ul>
+<li>VMベースからコンテナベースへ移行</li>
+<li>サーバに利用者のログインを許し、GPUなどの利用を促進する</li>
+<li>コンテナによる環境で課題や演習を可能にする
+<ul>
+<li>環境構築の手間をかけずに演習を行える</li>
+</ul>
+</li>
+<li>GFS2を現代的な多重度を持つ分散ファイルシステムに置き換える</li>
+<li>Wordpressを静的HTML生成に置き換える</li>
+<li>システム管理をRedmine/SlackからScrapbox/Mattermostに置き換える</li>
+</ul>
 </section>
 </foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="6" data-paginate="true" data-class="slide" data-theme="default" data-style="section {
   background-color: #FFFFFF;
@@ -200,12 +198,15 @@
 section.title h1 {
   text-align: center;
 }
+section.title h3 {
+  text-align: center;
+}
 
 section.slide h1 {
   position: absolute;
   left: 50px; top: 35px;
 }
-" class="slide" data-marpit-pagination="6" data-marpit-pagination-total="25" style="--paginate:true;--class:slide;--theme:default;
+" class="slide" data-marpit-pagination="6" data-marpit-pagination-total="18" style="--paginate:true;--class:slide;--theme:default;
 ;">
 <h1>VMベースからコンテナベースへ移行</h1>
 <ul>
@@ -238,12 +239,15 @@
 section.title h1 {
   text-align: center;
 }
+section.title h3 {
+  text-align: center;
+}
 
 section.slide h1 {
   position: absolute;
   left: 50px; top: 35px;
 }
-" class="slide" data-marpit-pagination="7" data-marpit-pagination-total="25" style="--paginate:true;--class:slide;--theme:default;
+" class="slide" data-marpit-pagination="7" data-marpit-pagination-total="18" style="--paginate:true;--class:slide;--theme:default;
 ;">
 <h1>コンテナ環境の導入</h1>
 <ul>
@@ -284,14 +288,17 @@
 section.title h1 {
   text-align: center;
 }
+section.title h3 {
+  text-align: center;
+}
 
 section.slide h1 {
   position: absolute;
   left: 50px; top: 35px;
 }
-" class="slide" data-marpit-pagination="8" data-marpit-pagination-total="25" style="--paginate:true;--class:slide;--theme:default;
+" class="slide" data-marpit-pagination="8" data-marpit-pagination-total="18" style="--paginate:true;--class:slide;--theme:default;
 ;">
-<h1>コンテナエンジンの補い</h1>
+<h1>コンテナエンジンの動作改善</h1>
 <ul>
 <li>
 <p>Podman</p>
@@ -333,16 +340,19 @@
 section.title h1 {
   text-align: center;
 }
+section.title h3 {
+  text-align: center;
+}
 
 section.slide h1 {
   position: absolute;
   left: 50px; top: 35px;
 }
-" class="slide" data-marpit-pagination="9" data-marpit-pagination-total="25" style="--paginate:true;--class:slide;--theme:default;
+" class="slide" data-marpit-pagination="9" data-marpit-pagination-total="18" style="--paginate:true;--class:slide;--theme:default;
 ;">
-<h1>ie-podmanの作成</h1>
+<h1>Rootless Podmanの遅さへの対策</h1>
 <ul>
-<li>rootfullのPodman wrapperである</li>
+<li>rootfullのPodman wrapperであるie-podmanの導入</li>
 <li>ユーザのUID、GIDを取得し管理を行う
 <ul>
 <li>他のユーザのリソースを操作できない</li>
@@ -350,6 +360,13 @@
 </ul>
 </li>
 <li>SSD上にイメージ等を保存し、高速化を図る</li>
+<li>イメージのBuild速度を比較する
+<ul>
+<li>Docker</li>
+<li>ie-podman (Podman rootfull wrapper)</li>
+<li>Podman (rootless)</li>
+</ul>
+</li>
 </ul>
 </section>
 </foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="10" data-paginate="true" data-class="slide" data-theme="default" data-style="section {
@@ -366,12 +383,45 @@
 section.title h1 {
   text-align: center;
 }
+section.title h3 {
+  text-align: center;
+}
 
 section.slide h1 {
   position: absolute;
   left: 50px; top: 35px;
 }
-" class="slide" data-marpit-pagination="10" data-marpit-pagination-total="25" style="--paginate:true;--class:slide;--theme:default;
+" class="slide" data-marpit-pagination="10" data-marpit-pagination-total="18" style="--paginate:true;--class:slide;--theme:default;
+;">
+<h1>Build速度の比較</h1>
+<ul>
+<li>Timeの値が小さい方がBuild速度が早い<br />
+<img src="images/container3.png" alt="height:480 center" style="height:480px;" /></li>
+</ul>
+</section>
+</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="11" data-paginate="true" data-class="slide" data-theme="default" data-style="section {
+  background-color: #FFFFFF;
+  font-size: 28px;
+  color: #4b4b4b;
+  font-family: &quot;Arial&quot;, &quot;Hiragino Maru Gothic ProN&quot;;
+}
+
+section.title {
+  font-size: 40px;
+  padding: 40px;
+}
+section.title h1 {
+  text-align: center;
+}
+section.title h3 {
+  text-align: center;
+}
+
+section.slide h1 {
+  position: absolute;
+  left: 50px; top: 35px;
+}
+" class="slide" data-marpit-pagination="11" data-marpit-pagination-total="18" style="--paginate:true;--class:slide;--theme:default;
 ;">
 <h1>ie-podmanの機能 1/2</h1>
 <ul>
@@ -416,7 +466,7 @@
 </tbody>
 </table>
 </section>
-</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="11" data-paginate="true" data-class="slide" data-theme="default" data-style="section {
+</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="12" data-paginate="true" data-class="slide" data-theme="default" data-style="section {
   background-color: #FFFFFF;
   font-size: 28px;
   color: #4b4b4b;
@@ -430,12 +480,15 @@
 section.title h1 {
   text-align: center;
 }
+section.title h3 {
+  text-align: center;
+}
 
 section.slide h1 {
   position: absolute;
   left: 50px; top: 35px;
 }
-" class="slide" data-marpit-pagination="11" data-marpit-pagination-total="25" style="--paginate:true;--class:slide;--theme:default;
+" class="slide" data-marpit-pagination="12" data-marpit-pagination-total="18" style="--paginate:true;--class:slide;--theme:default;
 ;">
 <h1>ie-podmanの機能 2/2</h1>
 <ul>
@@ -476,7 +529,7 @@
 </tbody>
 </table>
 </section>
-</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="12" data-paginate="true" data-class="slide" data-theme="default" data-style="section {
+</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="13" data-paginate="true" data-class="slide" data-theme="default" data-style="section {
   background-color: #FFFFFF;
   font-size: 28px;
   color: #4b4b4b;
@@ -490,12 +543,15 @@
 section.title h1 {
   text-align: center;
 }
+section.title h3 {
+  text-align: center;
+}
 
 section.slide h1 {
   position: absolute;
   left: 50px; top: 35px;
 }
-" class="slide" data-marpit-pagination="12" data-marpit-pagination-total="25" style="--paginate:true;--class:slide;--theme:default;
+" class="slide" data-marpit-pagination="13" data-marpit-pagination-total="18" style="--paginate:true;--class:slide;--theme:default;
 ;">
 <h1>ジョブスケジューラとファイルシステムの導入</h1>
 <ul>
@@ -538,45 +594,7 @@
 section.title h1 {
   text-align: center;
 }
-
-section.slide h1 {
-  position: absolute;
-  left: 50px; top: 35px;
-}
-" class="slide" data-marpit-pagination="13" data-marpit-pagination-total="25" style="--paginate:true;--class:slide;--theme:default;
-;" data-marpit-advanced-background="background"><div data-marpit-advanced-background-container="true" data-marpit-advanced-background-direction="horizontal"><figure style="background-image:url(&quot;images/system.png&quot;);background-size:80%;"></figure></div></section></foreignObject><foreignObject width="1280" height="720"><section id="13" data-paginate="true" data-class="slide" data-theme="default" data-style="section {
-  background-color: #FFFFFF;
-  font-size: 28px;
-  color: #4b4b4b;
-  font-family: &quot;Arial&quot;, &quot;Hiragino Maru Gothic ProN&quot;;
-}
-
-section.title {
-  font-size: 40px;
-  padding: 40px;
-}
-section.title h1 {
-  text-align: center;
-}
-
-section.slide h1 {
-  position: absolute;
-  left: 50px; top: 35px;
-}
-" class="slide" data-marpit-pagination="13" data-marpit-pagination-total="25" style="--paginate:true;--class:slide;--theme:default;
-;" data-marpit-advanced-background="content"></section>
-</foreignObject><foreignObject width="1280" height="720" data-marpit-advanced-background="pseudo"><section class="slide" style="" data-marpit-advanced-background="pseudo" data-marpit-pagination="13" data-marpit-pagination-total="25"></section></foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="14" data-paginate="true" data-class="title" data-theme="default" data-style="section {
-  background-color: #FFFFFF;
-  font-size: 28px;
-  color: #4b4b4b;
-  font-family: &quot;Arial&quot;, &quot;Hiragino Maru Gothic ProN&quot;;
-}
-
-section.title {
-  font-size: 40px;
-  padding: 40px;
-}
-section.title h1 {
+section.title h3 {
   text-align: center;
 }
 
@@ -584,96 +602,8 @@
   position: absolute;
   left: 50px; top: 35px;
 }
-" class="title" data-marpit-pagination="14" data-marpit-pagination-total="25" style="--paginate:true;--class:title;--theme:default;
-;">
-<h1>教育情報システムの利用</h1>
-</section>
-</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="15" data-paginate="true" data-class="slide" data-theme="default" data-style="section {
-  background-color: #FFFFFF;
-  font-size: 28px;
-  color: #4b4b4b;
-  font-family: &quot;Arial&quot;, &quot;Hiragino Maru Gothic ProN&quot;;
-}
-
-section.title {
-  font-size: 40px;
-  padding: 40px;
-}
-section.title h1 {
-  text-align: center;
-}
-
-section.slide h1 {
-  position: absolute;
-  left: 50px; top: 35px;
-}
-" class="slide" data-marpit-pagination="15" data-marpit-pagination-total="25" style="--paginate:true;--class:slide;--theme:default;
-;">
-<h1>ie-podmanの使用方法 1/2</h1>
-<ul>
-<li>IPアドレス、GPUをコンテナへ割り当てられる
-<ul>
-<li><code>ie-podman run --ip --gpu [IMAGE_NAME]</code></li>
-</ul>
-</li>
-</ul>
-<pre><code class="language-shell"><svg data-marp-fitting="svg" data-marp-fitting-code><foreignObject><span data-marp-fitting-svg-content><span data-marp-fitting-svg-content-wrap><span class="hljs-meta">$</span><span class="bash"> ie-podman run --rm --ip --name <span class="hljs-built_in">test</span> -dit ubuntu:20.04</span> 
-Assign an IP address: 10.100.20.1
-6842a8a572a73f7a21542dbb9fec5b5b4ca668aa9c2f7d7fe2522e3be316836d
-<span class="hljs-meta">
-$</span><span class="bash"> ping 10.100.20.1</span> 
-PING 10.100.20.1 (10.100.20.1) 56(84) bytes of data.
-64 bytes from 10.100.20.1: icmp_seq=2 ttl=63 time=0.215 ms
-64 bytes from 10.100.20.1: icmp_seq=3 ttl=63 time=0.201 ms
-</span></span></foreignObject></svg></code></pre>
-</section>
-</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="16" data-paginate="true" data-class="slide" data-theme="default" data-style="section {
-  background-color: #FFFFFF;
-  font-size: 28px;
-  color: #4b4b4b;
-  font-family: &quot;Arial&quot;, &quot;Hiragino Maru Gothic ProN&quot;;
-}
-
-section.title {
-  font-size: 40px;
-  padding: 40px;
-}
-section.title h1 {
-  text-align: center;
-}
-
-section.slide h1 {
-  position: absolute;
-  left: 50px; top: 35px;
-}
-" class="slide" data-marpit-pagination="16" data-marpit-pagination-total="25" style="--paginate:true;--class:slide;--theme:default;
-;">
-<h1>ie-podmanの使用方法 2/2</h1>
-<ul>
-<li>作成したイメージをsifファイルへの変換に対応
-<ul>
-<li><code>ie-podman sif [IMAGE_NAME]</code></li>
-</ul>
-</li>
-</ul>
-<pre><code class="language-shell"><svg data-marp-fitting="svg" data-marp-fitting-code><foreignObject><span data-marp-fitting-svg-content><span data-marp-fitting-svg-content-wrap><span class="hljs-meta">$</span><span class="bash"> ie-podman images</span> 
-REPOSITORY                    TAG     IMAGE ID      CREATED         SIZE
-localhost/e175733_test        latest  cb42448d39ca  21 seconds ago  138 MB
-<span class="hljs-meta">
-$</span><span class="bash"> ie-podman sif e175733_test</span>
-INFO:    Starting build...
-Getting image source signatures
-
-(省略)
-
-INFO:    Creating SIF file...
-INFO:    Build complete: e175733_test_latest.sif
-<span class="hljs-meta">
-$</span><span class="bash"> ls</span>
-e175733_test_latest.sif
-</span></span></foreignObject></svg></code></pre>
-</section>
-</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="17" data-paginate="true" data-class="slide" data-theme="default" data-style="section {
+" class="slide" data-marpit-pagination="14" data-marpit-pagination-total="18" style="--paginate:true;--class:slide;--theme:default;
+;" data-marpit-advanced-background="background"><div data-marpit-advanced-background-container="true" data-marpit-advanced-background-direction="horizontal"><figure style="background-image:url(&quot;images/system-bb.png&quot;);background-size:80%;"></figure></div></section></foreignObject><foreignObject width="1280" height="720"><section id="14" data-paginate="true" data-class="slide" data-theme="default" data-style="section {
   background-color: #FFFFFF;
   font-size: 28px;
   color: #4b4b4b;
@@ -687,51 +617,7 @@
 section.title h1 {
   text-align: center;
 }
-
-section.slide h1 {
-  position: absolute;
-  left: 50px; top: 35px;
-}
-" class="slide" data-marpit-pagination="17" data-marpit-pagination-total="25" style="--paginate:true;--class:slide;--theme:default;
-;">
-<h1>GPUの利用方法</h1>
-<ul>
-<li>GPUを使用するプログラムはSingularityから実行する
-<ul>
-<li><code>singularity run --nv [SIF_NAME]</code></li>
-</ul>
-</li>
-<li>Jobの処理手順をまとめたBatchファイルの作成する
-<ul>
-<li>Jobに必要なリソース、実行したい処理を記述する</li>
-</ul>
-</li>
-<li>SlurmによるJobの投下する
-<ul>
-<li><code>sbatch [BATCH_FILE]</code></li>
-</ul>
-</li>
-</ul>
-<pre><code class="language-shell"><svg data-marp-fitting="svg" data-marp-fitting-code><foreignObject><span data-marp-fitting-svg-content><span data-marp-fitting-svg-content-wrap><span class="hljs-meta">$</span><span class="bash"> sbatch test.sbatch</span>
-Submitted batch job 1318
-<span class="hljs-meta">
-$</span><span class="bash"> squeue</span>
-JOBID PARTITION     NAME     USER ST       TIME  NODES NODELIST(REASON) 
-1318    steins      test  e175733  R       0:01      1 amane 
-</span></span></foreignObject></svg></code></pre>
-</section>
-</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="18" data-paginate="true" data-class="slide" data-theme="default" data-style="section {
-  background-color: #FFFFFF;
-  font-size: 28px;
-  color: #4b4b4b;
-  font-family: &quot;Arial&quot;, &quot;Hiragino Maru Gothic ProN&quot;;
-}
-
-section.title {
-  font-size: 40px;
-  padding: 40px;
-}
-section.title h1 {
+section.title h3 {
   text-align: center;
 }
 
@@ -739,34 +625,9 @@
   position: absolute;
   left: 50px; top: 35px;
 }
-" class="slide" data-marpit-pagination="18" data-marpit-pagination-total="25" style="--paginate:true;--class:slide;--theme:default;
-;">
-<h1>Batchファイルの例</h1>
-<ul>
-<li>Jobに必要とするリソース
-<ul>
-<li>CPU 8コア、GPU 1つ</li>
-</ul>
-</li>
-<li>Jobの実行時間
-<ul>
-<li>1分</li>
-</ul>
-</li>
-</ul>
-<pre><code class="language-bash"><svg data-marp-fitting="svg" data-marp-fitting-code><foreignObject><span data-marp-fitting-svg-content><span data-marp-fitting-svg-content-wrap><span class="hljs-meta">#!/bin/bash</span>
-<span class="hljs-comment">#SBATCH --job-name sample</span>
-<span class="hljs-comment">#SBATCH --output logs/%x-%j.log</span>
-<span class="hljs-comment">#SBATCH --error logs/%x-%j.err</span>
-<span class="hljs-comment">#SBATCH --nodes 1</span>
-<span class="hljs-comment">#SBATCH --cpus-per-task 8</span>
-<span class="hljs-comment">#SBATCH --gpus tesla:1</span>
-<span class="hljs-comment">#SBATCH --time 01:00</span>
-
-singularity <span class="hljs-built_in">exec</span> --nv [SIF_NAME] [COMMANDS]
-</span></span></foreignObject></svg></code></pre>
-</section>
-</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="19" data-paginate="true" data-class="title" data-theme="default" data-style="section {
+" class="slide" data-marpit-pagination="14" data-marpit-pagination-total="18" style="--paginate:true;--class:slide;--theme:default;
+;" data-marpit-advanced-background="content"></section>
+</foreignObject><foreignObject width="1280" height="720" data-marpit-advanced-background="pseudo"><section class="slide" style="" data-marpit-advanced-background="pseudo" data-marpit-pagination="14" data-marpit-pagination-total="18"></section></foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="15" data-paginate="true" data-class="slide" data-theme="default" data-style="section {
   background-color: #FFFFFF;
   font-size: 28px;
   color: #4b4b4b;
@@ -780,27 +641,7 @@
 section.title h1 {
   text-align: center;
 }
-
-section.slide h1 {
-  position: absolute;
-  left: 50px; top: 35px;
-}
-" class="title" data-marpit-pagination="19" data-marpit-pagination-total="25" style="--paginate:true;--class:title;--theme:default;
-;">
-<h1>教育情報システムの評価</h1>
-</section>
-</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="20" data-paginate="true" data-class="slide" data-theme="default" data-style="section {
-  background-color: #FFFFFF;
-  font-size: 28px;
-  color: #4b4b4b;
-  font-family: &quot;Arial&quot;, &quot;Hiragino Maru Gothic ProN&quot;;
-}
-
-section.title {
-  font-size: 40px;
-  padding: 40px;
-}
-section.title h1 {
+section.title h3 {
   text-align: center;
 }
 
@@ -808,102 +649,9 @@
   position: absolute;
   left: 50px; top: 35px;
 }
-" class="slide" data-marpit-pagination="20" data-marpit-pagination-total="25" style="--paginate:true;--class:slide;--theme:default;
+" class="slide" data-marpit-pagination="15" data-marpit-pagination-total="18" style="--paginate:true;--class:slide;--theme:default;
 ;">
-<h1>ie-podmanの評価 1/2</h1>
-<ul>
-<li>
-<p>実験環境</p>
-<ul>
-<li>新システムの汎用サーバで実施</li>
-</ul>
-</li>
-<li>
-<p>実験概要</p>
-<ul>
-<li>イメージのBuild速度を比較する</li>
-</ul>
-</li>
-</ul>
-<pre><code class="language-Dockerfile"><svg data-marp-fitting="svg" data-marp-fitting-code><foreignObject><span data-marp-fitting-svg-content><span data-marp-fitting-svg-content-wrap><span class="hljs-keyword">FROM</span> ubuntu:<span class="hljs-number">20.04</span>
-<span class="hljs-keyword">RUN</span><span class="bash"> apt-get update &amp;&amp; \
-    apt-get upgrade -y</span>
-</span></span></foreignObject></svg></code></pre>
-<ul>
-<li>比較するコンテナエンジン
-<ul>
-<li>Docker</li>
-<li>ie-podman (Podman rootfull wrapper)</li>
-<li>Podman (rootless)</li>
-</ul>
-</li>
-</ul>
-</section>
-</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section data-paginate="true" data-class="slide" data-theme="default" data-style="section {
-  background-color: #FFFFFF;
-  font-size: 28px;
-  color: #4b4b4b;
-  font-family: &quot;Arial&quot;, &quot;Hiragino Maru Gothic ProN&quot;;
-}
-
-section.title {
-  font-size: 40px;
-  padding: 40px;
-}
-section.title h1 {
-  text-align: center;
-}
-
-section.slide h1 {
-  position: absolute;
-  left: 50px; top: 35px;
-}
-" class="slide" data-marpit-pagination="21" data-marpit-pagination-total="25" style="--paginate:true;--class:slide;--theme:default;
-;" data-marpit-advanced-background="background"><div data-marpit-advanced-background-container="true" data-marpit-advanced-background-direction="horizontal"><figure style="background-image:url(&quot;images/container2.png&quot;);background-size:70%;"></figure></div></section></foreignObject><foreignObject width="1280" height="720"><section id="21" data-paginate="true" data-class="slide" data-theme="default" data-style="section {
-  background-color: #FFFFFF;
-  font-size: 28px;
-  color: #4b4b4b;
-  font-family: &quot;Arial&quot;, &quot;Hiragino Maru Gothic ProN&quot;;
-}
-
-section.title {
-  font-size: 40px;
-  padding: 40px;
-}
-section.title h1 {
-  text-align: center;
-}
-
-section.slide h1 {
-  position: absolute;
-  left: 50px; top: 35px;
-}
-" class="slide" data-marpit-pagination="21" data-marpit-pagination-total="25" style="--paginate:true;--class:slide;--theme:default;
-;" data-marpit-advanced-background="content">
-<h1>ie-podmanの評価 2/2</h1>
-</section>
-</foreignObject><foreignObject width="1280" height="720" data-marpit-advanced-background="pseudo"><section class="slide" style="" data-marpit-advanced-background="pseudo" data-marpit-pagination="21" data-marpit-pagination-total="25"></section></foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="22" data-paginate="true" data-class="slide" data-theme="default" data-style="section {
-  background-color: #FFFFFF;
-  font-size: 28px;
-  color: #4b4b4b;
-  font-family: &quot;Arial&quot;, &quot;Hiragino Maru Gothic ProN&quot;;
-}
-
-section.title {
-  font-size: 40px;
-  padding: 40px;
-}
-section.title h1 {
-  text-align: center;
-}
-
-section.slide h1 {
-  position: absolute;
-  left: 50px; top: 35px;
-}
-" class="slide" data-marpit-pagination="22" data-marpit-pagination-total="25" style="--paginate:true;--class:slide;--theme:default;
-;">
-<h1>ファイルシステムの評価 1/2</h1>
+<h1>ファイルシステムの比較 1/2</h1>
 <ul>
 <li>
 <p>実験概要</p>
@@ -938,7 +686,7 @@
 </li>
 </ul>
 </section>
-</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section data-paginate="true" data-class="slide" data-theme="default" data-style="section {
+</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="16" data-paginate="true" data-class="slide" data-theme="default" data-style="section {
   background-color: #FFFFFF;
   font-size: 28px;
   color: #4b4b4b;
@@ -952,13 +700,23 @@
 section.title h1 {
   text-align: center;
 }
+section.title h3 {
+  text-align: center;
+}
 
 section.slide h1 {
   position: absolute;
   left: 50px; top: 35px;
 }
-" class="slide" data-marpit-pagination="23" data-marpit-pagination-total="25" style="--paginate:true;--class:slide;--theme:default;
-;" data-marpit-advanced-background="background"><div data-marpit-advanced-background-container="true" data-marpit-advanced-background-direction="horizontal"><figure style="background-image:url(&quot;images/fswrite.png&quot;);background-size:70%;"></figure></div></section></foreignObject><foreignObject width="1280" height="720"><section id="23" data-paginate="true" data-class="slide" data-theme="default" data-style="section {
+" class="slide" data-marpit-pagination="16" data-marpit-pagination-total="18" style="--paginate:true;--class:slide;--theme:default;
+;">
+<h1>ファイルシステムの比較 2/2</h1>
+<ul>
+<li>MB/sの値が大きい方が性能が良い<br />
+<img src="images/fswrite2.png" alt="height:480 center" style="height:480px;" /></li>
+</ul>
+</section>
+</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="17" data-paginate="true" data-class="title" data-theme="default" data-style="section {
   background-color: #FFFFFF;
   font-size: 28px;
   color: #4b4b4b;
@@ -972,16 +730,29 @@
 section.title h1 {
   text-align: center;
 }
+section.title h3 {
+  text-align: center;
+}
 
 section.slide h1 {
   position: absolute;
   left: 50px; top: 35px;
 }
-" class="slide" data-marpit-pagination="23" data-marpit-pagination-total="25" style="--paginate:true;--class:slide;--theme:default;
-;" data-marpit-advanced-background="content">
-<h1>ファイルシステムの評価 2/2</h1>
+" class="title" data-marpit-pagination="17" data-marpit-pagination-total="18" style="--paginate:true;--class:title;--theme:default;
+;">
+<h1>まとめ</h1>
+<ul>
+<li>今年度のシステム更新で教育情報システムの構築を行った
+<ul>
+<li>VMベースからコンテナベースへの移行ができた</li>
+<li>学生が自由にサーバのリソースを利用できるようになった</li>
+</ul>
+</li>
+<li>Rootless Podmanの遅さ補うために作成したie-podmanの評価を行った</li>
+<li>Cephと、これまでのGFS2との書き込み速度の比較を行った</li>
+</ul>
 </section>
-</foreignObject><foreignObject width="1280" height="720" data-marpit-advanced-background="pseudo"><section class="slide" style="" data-marpit-advanced-background="pseudo" data-marpit-pagination="23" data-marpit-pagination-total="25"></section></foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="24" data-paginate="true" data-class="title" data-theme="default" data-style="section {
+</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="18" data-paginate="true" data-class="slide" data-theme="default" data-style="section {
   background-color: #FFFFFF;
   font-size: 28px;
   color: #4b4b4b;
@@ -995,37 +766,7 @@
 section.title h1 {
   text-align: center;
 }
-
-section.slide h1 {
-  position: absolute;
-  left: 50px; top: 35px;
-}
-" class="title" data-marpit-pagination="24" data-marpit-pagination-total="25" style="--paginate:true;--class:title;--theme:default;
-;">
-<h1>まとめ</h1>
-<ul>
-<li>今年度のシステム更新で教育情報システムの構築を行った
-<ul>
-<li>VMベースからコンテナベースへの移行ができた</li>
-<li>学生が自由にサーバのリソースを利用できるようになった</li>
-</ul>
-</li>
-<li>Cephと、これまでのGFS2との書き込み速度の比較を行った</li>
-<li>不便な点を補うために作成したie-podmanの評価を行った</li>
-</ul>
-</section>
-</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="25" data-paginate="true" data-class="slide" data-theme="default" data-style="section {
-  background-color: #FFFFFF;
-  font-size: 28px;
-  color: #4b4b4b;
-  font-family: &quot;Arial&quot;, &quot;Hiragino Maru Gothic ProN&quot;;
-}
-
-section.title {
-  font-size: 40px;
-  padding: 40px;
-}
-section.title h1 {
+section.title h3 {
   text-align: center;
 }
 
@@ -1033,7 +774,7 @@
   position: absolute;
   left: 50px; top: 35px;
 }
-" class="slide" data-marpit-pagination="25" data-marpit-pagination-total="25" style="--paginate:true;--class:slide;--theme:default;
+" class="slide" data-marpit-pagination="18" data-marpit-pagination-total="18" style="--paginate:true;--class:slide;--theme:default;
 ;">
 <h1>今後の課題</h1>
 <ul>
@@ -1061,21 +802,35 @@
 </li>
 </ul>
 </section>
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-</script></foreignObject></svg></div><div class="bespoke-marp-note" data-index="20" tabindex="0"><p>---
-# ie-podmanの評価 3/3
+<script>!function(){"use strict";const t="marpitSVGPolyfill:setZoomFactor,",e=Symbol();let r,o;function n(n){const i="object"==typeof n&&n.target||document,a="object"==typeof n?n.zoom:n;window[e]||(Object.defineProperty(window,e,{configurable:!0,value:!0}),window.addEventListener("message",(({data:e,origin:r})=>{if(r===window.origin)try{if(e&&"string"==typeof e&&e.startsWith(t)){const[,t]=e.split(","),r=Number.parseFloat(t);Number.isNaN(r)||(o=r)}}catch(t){console.error(t)}})));let l=!1;Array.from(i.querySelectorAll("svg[data-marpit-svg]"),(t=>{var e,n,i,s;t.style.transform||(t.style.transform="translateZ(0)");const c=a||o||t.currentScale||1;r!==c&&(r=c,l=c);const d=t.getBoundingClientRect(),{length:u}=t.children;for(let r=0;r<u;r+=1){const o=t.children[r],a=o.getScreenCTM();if(a){const t=null!==(n=null===(e=o.x)||void 0===e?void 0:e.baseVal.value)&&void 0!==n?n:0,r=null!==(s=null===(i=o.y)||void 0===i?void 0:i.baseVal.value)&&void 0!==s?s:0,l=o.firstElementChild,{style:u}=l;u.transformOrigin||(u.transformOrigin=`${-t}px ${-r}px`),u.transform=`scale(${c}) matrix(${a.a}, ${a.b}, ${a.c}, ${a.d}, ${a.e-d.left}, ${a.f-d.top}) translateZ(0.0001px)`}}})),!1!==l&&Array.from(i.querySelectorAll("iframe"),(({contentWindow:e})=>{null==e||e.postMessage(`${t}${l}`,"null"===window.origin?"*":window.origin)}))}r=1,o=void 0;const i=(t,e,r)=>{if(t.getAttribute(e)!==r)return t.setAttribute(e,r),!0};function a({once:t=!1,target:e=document}={}){const r="Apple Computer, Inc."===navigator.vendor?[n]:[];let o=!t;const a=()=>{for(const t of r)t({target:e});!function(t=document){Array.from(t.querySelectorAll('svg[data-marp-fitting="svg"]'),(t=>{var e;const r=t.firstChild,o=r.firstChild,{scrollWidth:n,scrollHeight:a}=o;let l,s=1;if(t.hasAttribute("data-marp-fitting-code")&&(l=null===(e=t.parentElement)||void 0===e?void 0:e.parentElement),t.hasAttribute("data-marp-fitting-math")&&(l=t.parentElement),l){const t=getComputedStyle(l),e=Math.ceil(l.clientWidth-parseFloat(t.paddingLeft||"0")-parseFloat(t.paddingRight||"0"));e&&(s=e)}const c=Math.max(n,s),d=Math.max(a,1),u=`0 0 ${c} ${d}`;i(r,"width",`${c}`),i(r,"height",`${d}`),i(t,"preserveAspectRatio",getComputedStyle(t).getPropertyValue("--preserve-aspect-ratio")||"xMinYMin meet"),i(t,"viewBox",u)&&t.classList.toggle("__reflow__")}))}(e),o&&window.requestAnimationFrame(a)};return a(),()=>{o=!1}}const l=Symbol(),s=document.currentScript;((t=document)=>{if("undefined"==typeof window)throw new Error("Marp Core's browser script is valid only in browser context.");if(t[l])return t[l];const e=a({target:t}),r=()=>{e(),delete t[l]};Object.defineProperty(t,l,{configurable:!0,value:r})})(s?s.getRootNode():document)}();
+</script></foreignObject></svg></div><div class="bespoke-marp-note" data-index="2" tabindex="0"><p># これまでの学生向け学習環境
+
+- VM貸出サービス
+    - Akatsuki
+        - 申請を行い、Webコントロールパネルから作成する
+    - ie-virsh
+        - 手元のPCで作成したVMイメージを学科サーバにデプロイできる
 
-- Rootlessは`syscall`が複数呼ばれている
-    - そのため、イメージの作成が遅いのではないか
-- 左がrootless、右がrootfull
+- VM貸出サービスのデフォルトスペック
+    - CPU 1コア
+    - メモリ 1GB
+    - ディスク容量 10GB
+
+---</p><p>- VM貸出サービスの一部学生は申請の方法が分からなかったり、貸出サービスがあることが周知されていなかったため、旧システムのリソースが余っていた
 
-![height:325](images/syscall.png)</p></div><script>!function(){"use strict";var e=function(e,t){var n,r=1===(e.parent||e).nodeType?e.parent||e:document.querySelector(e.parent||e),s=[].filter.call("string"==typeof e.slides?r.querySelectorAll(e.slides):e.slides||r.children,(function(e){return"SCRIPT"!==e.nodeName})),a={},i=function(e,t){return(t=t||{}).index=s.indexOf(e),t.slide=e,t},o=function(e,t){a[e]=(a[e]||[]).filter((function(e){return e!==t}))},l=function(e,t){return(a[e]||[]).reduce((function(e,n){return e&&!1!==n(t)}),!0)},c=function(e,t){s[e]&&(n&&l("deactivate",i(n,t)),n=s[e],l("activate",i(n,t)))},d=function(e,t){var r=s.indexOf(n)+e;l(e>0?"next":"prev",i(n,t))&&c(r,t)},u={off:o,on:function(e,t){return(a[e]||(a[e]=[])).push(t),o.bind(null,e,t)},fire:l,slide:function(e,t){if(!arguments.length)return s.indexOf(n);l("slide",i(s[e],t))&&c(e,t)},next:d.bind(null,1),prev:d.bind(null,-1),parent:r,slides:s,destroy:function(e){l("destroy",i(n,e)),a={}}};return(t||[]).forEach((function(e){e(u)})),n||c(0),u};function t(e){e.parent.classList.add("bespoke-marp-parent"),e.slides.forEach((e=>e.classList.add("bespoke-marp-slide"))),e.on("activate",(t=>{const n=t.slide,r=!n.classList.contains("bespoke-marp-active");e.slides.forEach((e=>{e.classList.remove("bespoke-marp-active"),e.setAttribute("aria-hidden","true")})),n.classList.add("bespoke-marp-active"),n.removeAttribute("aria-hidden"),r&&(n.classList.add("bespoke-marp-active-ready"),document.body.clientHeight,n.classList.remove("bespoke-marp-active-ready"))}))}function n(e){let t=0,n=0;Object.defineProperty(e,"fragments",{enumerable:!0,value:e.slides.map((e=>[null,...e.querySelectorAll("[data-marpit-fragment]")]))});const r=r=>void 0!==e.fragments[t][n+r],s=(r,s)=>{t=r,n=s,e.fragments.forEach(((e,t)=>{e.forEach(((e,n)=>{if(null==e)return;const a=t<r||t===r&&n<=s;e.setAttribute("data-bespoke-marp-fragment",a?"active":"inactive"),t===r&&n===s?e.setAttribute("data-bespoke-marp-current-fragment","current"):e.removeAttribute("data-bespoke-marp-current-fragment")}))})),e.fragmentIndex=s;const a={slide:e.slides[r],index:r,fragments:e.fragments[r],fragmentIndex:s};e.fire("fragment",a)};e.on("next",(({fragment:a=!0})=>{if(a){if(r(1))return s(t,n+1),!1;const a=t+1;e.fragments[a]&&s(a,0)}else{const r=e.fragments[t].length;if(n+1<r)return s(t,r-1),!1;const a=e.fragments[t+1];a&&s(t+1,a.length-1)}})),e.on("prev",(({fragment:a=!0})=>{if(r(-1)&&a)return s(t,n-1),!1;const i=t-1;e.fragments[i]&&s(i,e.fragments[i].length-1)})),e.on("slide",(({index:t,fragment:n})=>{let r=0;if(void 0!==n){const s=e.fragments[t];if(s){const{length:e}=s;r=-1===n?e-1:Math.min(Math.max(n,0),e-1)}}s(t,r)})),s(0,0)}
+&lt;/br&gt;
+
+- 旧システムにはGPUが搭載されていないため、貸出サービスではなく研究室ごとの機器、クラウドサービスが多く利用された
+
+&lt;/br&gt;
+
+- VMイメージの保存場所に使用していたGFS2はロックマネージャの影響が大きく、サーバ1台でもクラスタに参加できないとGFS2上にアクセスできなくなった</p></div><script>!function(){"use strict";var e=function(e,t){var n,r=1===(e.parent||e).nodeType?e.parent||e:document.querySelector(e.parent||e),s=[].filter.call("string"==typeof e.slides?r.querySelectorAll(e.slides):e.slides||r.children,(function(e){return"SCRIPT"!==e.nodeName})),a={},i=function(e,t){return(t=t||{}).index=s.indexOf(e),t.slide=e,t},o=function(e,t){a[e]=(a[e]||[]).filter((function(e){return e!==t}))},l=function(e,t){return(a[e]||[]).reduce((function(e,n){return e&&!1!==n(t)}),!0)},c=function(e,t){s[e]&&(n&&l("deactivate",i(n,t)),n=s[e],l("activate",i(n,t)))},d=function(e,t){var r=s.indexOf(n)+e;l(e>0?"next":"prev",i(n,t))&&c(r,t)},u={off:o,on:function(e,t){return(a[e]||(a[e]=[])).push(t),o.bind(null,e,t)},fire:l,slide:function(e,t){if(!arguments.length)return s.indexOf(n);l("slide",i(s[e],t))&&c(e,t)},next:d.bind(null,1),prev:d.bind(null,-1),parent:r,slides:s,destroy:function(e){l("destroy",i(n,e)),a={}}};return(t||[]).forEach((function(e){e(u)})),n||c(0),u};function t(e){e.parent.classList.add("bespoke-marp-parent"),e.slides.forEach((e=>e.classList.add("bespoke-marp-slide"))),e.on("activate",(t=>{const n=t.slide,r=!n.classList.contains("bespoke-marp-active");e.slides.forEach((e=>{e.classList.remove("bespoke-marp-active"),e.setAttribute("aria-hidden","true")})),n.classList.add("bespoke-marp-active"),n.removeAttribute("aria-hidden"),r&&(n.classList.add("bespoke-marp-active-ready"),document.body.clientHeight,n.classList.remove("bespoke-marp-active-ready"))}))}function n(e){let t=0,n=0;Object.defineProperty(e,"fragments",{enumerable:!0,value:e.slides.map((e=>[null,...e.querySelectorAll("[data-marpit-fragment]")]))});const r=r=>void 0!==e.fragments[t][n+r],s=(r,s)=>{t=r,n=s,e.fragments.forEach(((e,t)=>{e.forEach(((e,n)=>{if(null==e)return;const a=t<r||t===r&&n<=s;e.setAttribute("data-bespoke-marp-fragment",a?"active":"inactive"),t===r&&n===s?e.setAttribute("data-bespoke-marp-current-fragment","current"):e.removeAttribute("data-bespoke-marp-current-fragment")}))})),e.fragmentIndex=s;const a={slide:e.slides[r],index:r,fragments:e.fragments[r],fragmentIndex:s};e.fire("fragment",a)};e.on("next",(({fragment:a=!0})=>{if(a){if(r(1))return s(t,n+1),!1;const a=t+1;e.fragments[a]&&s(a,0)}else{const r=e.fragments[t].length;if(n+1<r)return s(t,r-1),!1;const a=e.fragments[t+1];a&&s(t+1,a.length-1)}})),e.on("prev",(({fragment:a=!0})=>{if(r(-1)&&a)return s(t,n-1),!1;const i=t-1;e.fragments[i]&&s(i,e.fragments[i].length-1)})),e.on("slide",(({index:t,fragment:n})=>{let r=0;if(void 0!==n){const s=e.fragments[t];if(s){const{length:e}=s;r=-1===n?e-1:Math.min(Math.max(n,0),e-1)}}s(t,r)})),s(0,0)}
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 /*! *****************************************************************************
 Copyright (c) Microsoft Corporation.
 
diff -r 424850058f1b -r f0af437fca35 slide/slide.md
--- a/slide/slide.md	Mon Feb 15 19:37:52 2021 +0900
+++ b/slide/slide.md	Mon Feb 15 21:50:04 2021 +0900
@@ -20,6 +20,9 @@
   section.title h1 {
     text-align: center;
   }
+  section.title h3 {
+    text-align: center;
+  }
 
   section.slide h1 {
     position: absolute;
@@ -65,6 +68,12 @@
 --- -->
 # これまでの学習環境の問題点
 
+- VM貸出サービスの申請方法がわからない
+- 貸出サービスが存在することが周知されていなかった
+- GPUが搭載されていなく研究室ごとの機器、クラウドサービスが利用された
+- VMイメージの保存場所として使用されたGSF2はロックマネージャーの影響が大きかった
+
+<!--
 - VM貸出サービスの一部学生は申請の方法が分からなかったり、貸出サービスがあることが周知されていなかったため、旧システムのリソースが余っていた
 
 </br>
@@ -74,24 +83,27 @@
 </br>
 
 - VMイメージの保存場所に使用していたGFS2はロックマネージャの影響が大きく、サーバ1台でもクラスタに参加できないとGFS2上にアクセスできなくなった
+-->
 
 ---
 <!-- class: title -->
 # 教育情報システムの構築
 
-- 目的
-    - 開かれた見通しの良い教育情報システムを構築する
-- 目的を達成するための構成要素
-    - VMベースからコンテナベースへ移行
-    - GFS2を現代的な多重度を持つ分散ファイルシステムに置き換える
-    - Wordpressを静的HTML生成に置き換える
-    - サーバに利用者のログインを許し、GPUなどの利用を促進する
-    - コンテナによる環境で課題や演習を可能にする
-        - 環境構築の手間をかけずに演習を行える
-    - システム管理をRedmine/SlackからScrapbox/Mattermostに置き換える
+### 目的: 開かれた見通しの良い教育情報システムを構築する
 
 ---
 <!-- class: slide -->
+# 目的を達成するための構成要素
+
+- VMベースからコンテナベースへ移行
+- サーバに利用者のログインを許し、GPUなどの利用を促進する
+- コンテナによる環境で課題や演習を可能にする
+    - 環境構築の手間をかけずに演習を行える
+- GFS2を現代的な多重度を持つ分散ファイルシステムに置き換える
+- Wordpressを静的HTML生成に置き換える
+- システム管理をRedmine/SlackからScrapbox/Mattermostに置き換える
+
+---
 # VMベースからコンテナベースへ移行
 
 - 旧システムはVMベースでシステムが構築されていた
@@ -120,7 +132,7 @@
 - コンテナベースの学習環境を提供できるようになる
 
 ---
-# コンテナエンジンの選択
+# コンテナエンジンの動作改善
 
 - Podman
     - rootlessではイメージの作成やコンテナの作成が遅い
@@ -133,14 +145,14 @@
 - そこでPodmanをwrappしたie-podmanを作成した
 
 ---
-# Rootless podmanの遅さの解決
+# Rootless Podmanの遅さへの対策
 
 - rootfullのPodman wrapperであるie-podmanの導入
 - ユーザのUID、GIDを取得し管理を行う
     - 他のユーザのリソースを操作できない
     - コンテナ名、イメージ名をユーザ名で補完する
 - SSD上にイメージ等を保存し、高速化を図る
-- 比較するコンテナエンジン
+- イメージのBuild速度を比較する
     - Docker
     - ie-podman (Podman rootfull wrapper)
     - Podman (rootless)
@@ -148,7 +160,8 @@
 ---
 # Build速度の比較
 
-![](images/container2.png)
+- Timeの値が小さい方がBuild速度が早い
+![height:480 center](images/container3.png)
 
 ---
 # ie-podmanの機能 1/2
@@ -196,15 +209,10 @@
 
 ---
 
-![bg 80%](images/system.png)
+![bg 80%](images/system-bb.png)
 
 ---
-<!-- class: title -->
-# 教育情報システムの評価
-
----
-<!-- class: slide -->
-# ファイルシステムの評価 1/2
+# ファイルシステムの比較 1/2
 
 - 実験概要
     - `dd`コマンドを使用し書き込み速度を比較する
@@ -220,12 +228,10 @@
         - 新システムのVMイメージの保存場所の1つとして利用する
 
 ---
-# ファイルシステムの評価 2/2
+# ファイルシステムの比較 2/2
 
-![bg 70%](images/fswrite.png)
-
-MB/sの値が大きい方が性能が良い
-GFS2よりも高速がわかった
+- MB/sの値が大きい方が性能が良い
+![height:480 center](images/fswrite2.png)
 
 ---
 <!-- class: title -->
@@ -234,8 +240,8 @@
 - 今年度のシステム更新で教育情報システムの構築を行った
     - VMベースからコンテナベースへの移行ができた
     - 学生が自由にサーバのリソースを利用できるようになった
+- Rootless Podmanの遅さ補うために作成したie-podmanの評価を行った
 - Cephと、これまでのGFS2との書き込み速度の比較を行った
-- Rootless Podmanの遅さ補うために作成したie-podmanの評価を行った
 
 ---
 <!-- class: slide -->