Mercurial > hg > Papers > 2024 > matac-master
changeset 72:b2a541a2c178
create slide & poster
| author | matac42 <matac@cr.ie.u-ryukyu.ac.jp> |
|---|---|
| date | Tue, 13 Feb 2024 17:12:55 +0900 |
| parents | 8e84b98cc6c8 |
| children | c4b013299ff6 |
| files | Paper/master_paper.pdf marp-slide/Makefile marp-slide/README.md marp-slide/cr.css marp-slide/figs/cd.svg marp-slide/figs/cgdg.svg marp-slide/figs/context.svg marp-slide/figs/copy_alloc.drawio marp-slide/figs/copying-gc.svg marp-slide/figs/data-access.svg marp-slide/figs/disk-memory.svg marp-slide/figs/inode.svg marp-slide/figs/ls.svg marp-slide/figs/meta_cg_dg.svg marp-slide/figs/mkdir.svg marp-slide/figs/nondestructive_tree_modification.png marp-slide/figs/test.drawio marp-slide/figs/test.svg marp-slide/figs/transaction.svg marp-slide/logo.svg marp-slide/slide.html marp-slide/slide.md mindmaps/gears_fs_db.mm poster/matac-poster.graffle |
| diffstat | 24 files changed, 2049 insertions(+), 7 deletions(-) [+] |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/marp-slide/Makefile Tue Feb 13 17:12:55 2024 +0900 @@ -0,0 +1,3 @@ +build: + marp template.md --theme cr.css + open template.html \ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/marp-slide/README.md Tue Feb 13 17:12:55 2024 +0900 @@ -0,0 +1,15 @@ +## 使用方法 + +基本的には`Marp for VSCode` Extensionを使用する + +Extensionをインストール後、次のVSCodeの設定を書き込む。 +テーマのパスは環境によって違うかもしれないので確認する。 +おそらく、VSCodeで開いているディレクトリからの相対パスを入れれば良い。 +```json + "markdown.marp.exportType": "html", + "markdown.marp.themes": ["template/cr.css"] +``` + +## CLIでの使用方法 + +Makefileを作成してある \ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/marp-slide/cr.css Tue Feb 13 17:12:55 2024 +0900 @@ -0,0 +1,30 @@ +/* @theme cr */ + +@import 'default'; + +section { + background-image: url('./logo.svg'); + background-repeat: no-repeat; + background-position: right 2rem bottom 0.6rem; + background-size: 12%; +} + +h1 { + color: #828db2; + font-size: 2.1rem; +} + +h2 { + background-color: #828db2; + color: #fff; + padding: 0.3rem; + font-size: 2.1rem; +} + +p { + font-size: 1.3rem; +} + +ul, ol { + font-size: 1.2rem; +}
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align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 241px; margin-left: 522px;"><div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 17px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">CodeGear</div></div></div></foreignObject><text x="581" y="246" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="17px" text-anchor="middle">CodeGear</text></switch></g><rect x="371" y="201" width="60" height="30" fill="none" stroke="none" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; 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style="background-color: rgb(255, 255, 255);"><defs/><g><rect x="6" y="341" width="290" height="30" fill="none" stroke="none" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe flex-start; width: 288px; height: 1px; padding-top: 356px; margin-left: 8px;"><div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: left;"><div style="display: inline-block; font-size: 17px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;"><font color="#ff0000" style="font-size: 17px">put<br style="font-size: 17px" /></font>key: name->value (filename)<br style="font-size: 17px" />value: gearsDirectory->INodeNumber</div></div></div></foreignObject><text x="8" y="361" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="17px">put...</text></switch></g><rect x="1" y="321" width="300" height="70" rx="10.5" ry="10.5" fill="none" stroke="rgb(0, 0, 0)" stroke-width="3" pointer-events="all"/><rect x="21" y="121" width="280" height="70" rx="10.5" ry="10.5" fill="none" stroke="rgb(0, 0, 0)" stroke-width="3" pointer-events="all"/><rect x="26" y="141" width="270" height="30" fill="none" stroke="none" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe flex-start; width: 268px; height: 1px; padding-top: 156px; margin-left: 28px;"><div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: left;"><div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;"><font style="font-size: 17px"><font color="#ff0000" style="font-size: 17px">put</font><br /></font><div style="font-size: 17px"><span><font style="font-size: 17px">key: gearsDirectory->INodeNumber</font></span></div><font style="font-size: 17px">value: newDirectory</font></div></div></div></foreignObject><text x="28" y="160" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px">put...</text></switch></g><rect x="311" y="231" width="160" height="160" fill="none" stroke="rgb(0, 0, 0)" stroke-width="3" pointer-events="all"/><ellipse cx="391" cy="271" rx="20" ry="20" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-width="3" pointer-events="all"/><ellipse cx="351" cy="351" rx="20" ry="20" fill="rgb(255, 255, 255)" 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style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 17px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">inode tree</div></div></div></foreignObject><text x="351" y="21" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="17px" text-anchor="middle">inode tree</text></switch></g><rect x="308.5" y="201" width="85" height="30" fill="none" stroke="none" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 83px; height: 1px; padding-top: 216px; margin-left: 310px;"><div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 17px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">index tree</div></div></div></foreignObject><text x="351" y="221" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="17px" text-anchor="middle">index tree</text></switch></g><ellipse cx="391" cy="71" rx="20" ry="20" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-width="3" pointer-events="all"/><ellipse cx="351" cy="151" rx="20" ry="20" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-width="3" pointer-events="all"/><ellipse cx="431" cy="151" rx="20" ry="20" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-width="3" pointer-events="all"/><path d="M 351 131 L 391 91" fill="none" stroke="rgb(0, 0, 0)" stroke-width="3" stroke-miterlimit="10" pointer-events="stroke"/><path d="M 391 91 L 431 131" fill="none" stroke="rgb(0, 0, 0)" stroke-width="3" stroke-miterlimit="10" pointer-events="stroke"/><path d="M 296 356 L 316 356 L 311 356 L 335.9 356" fill="none" stroke="rgb(0, 0, 0)" stroke-width="3" stroke-miterlimit="10" pointer-events="stroke"/><path d="M 342.65 356 L 333.65 360.5 L 335.9 356 L 333.65 351.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-width="3" stroke-miterlimit="10" pointer-events="all"/><rect x="311" y="31" width="160" height="160" fill="none" stroke="rgb(0, 0, 0)" stroke-width="3" pointer-events="all"/><path d="M 296 156 L 335.9 156" fill="none" stroke="rgb(0, 0, 0)" stroke-width="3" stroke-miterlimit="10" pointer-events="stroke"/><path d="M 342.65 156 L 333.65 160.5 L 335.9 156 L 333.65 151.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-width="3" stroke-miterlimit="10" pointer-events="all"/><rect x="511" y="56" width="260" height="30" fill="none" stroke="none" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe flex-start; width: 258px; height: 1px; padding-top: 71px; margin-left: 513px;"><div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: left;"><div style="display: inline-block; font-size: 17px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;"><font color="#ff6666">inode tree<br /></font>inode numberをkeyとし<br />inodeのpointerをvalueとして持つ</div></div></div></foreignObject><text x="513" y="76" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="17px">inode tree...</text></switch></g><rect x="511" y="241" width="250" height="30" fill="none" stroke="none" pointer-events="all"/><g transform="translate(-0.5 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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/marp-slide/figs/test.drawio Tue Feb 13 17:12:55 2024 +0900 @@ -0,0 +1,31 @@ +<mxfile host="65bd71144e"> + <diagram id="TG3UEg7DHUoYuTF4jb0s" name="Page-1"> + <mxGraphModel dx="1025" dy="880" grid="1" gridSize="10" guides="1" tooltips="1" connect="1" arrows="1" fold="1" page="1" pageScale="1" pageWidth="827" pageHeight="1169" math="0" shadow="0"> + <root> + <mxCell id="0"/> + <mxCell id="1" parent="0"/> + <mxCell id="6" style="edgeStyle=none;html=1;exitX=1;exitY=0.5;exitDx=0;exitDy=0;entryX=0;entryY=0.5;entryDx=0;entryDy=0;fontSize=20;strokeWidth=3;" edge="1" parent="1" source="2" target="3"> + <mxGeometry relative="1" as="geometry"/> + </mxCell> + <mxCell id="2" value="<font style="font-size: 20px">DataGear</font>" style="rounded=0;whiteSpace=wrap;html=1;fillColor=none;fontColor=#333333;strokeColor=#000000;strokeWidth=5;" parent="1" vertex="1"> + <mxGeometry x="40" y="210" width="120" height="60" as="geometry"/> + </mxCell> + <mxCell id="7" style="edgeStyle=none;html=1;exitX=1;exitY=0.5;exitDx=0;exitDy=0;entryX=0;entryY=0.5;entryDx=0;entryDy=0;fontSize=20;strokeWidth=3;" edge="1" parent="1" source="3" target="4"> + <mxGeometry relative="1" as="geometry"/> + </mxCell> + <mxCell id="3" value="CodeGear" style="ellipse;whiteSpace=wrap;html=1;fontSize=20;strokeWidth=5;" vertex="1" parent="1"> + <mxGeometry x="240" y="200" width="120" height="80" as="geometry"/> + </mxCell> + <mxCell id="9" style="edgeStyle=none;html=1;exitX=1;exitY=0.5;exitDx=0;exitDy=0;fontSize=20;strokeWidth=3;" edge="1" parent="1" source="4" target="5"> + <mxGeometry relative="1" as="geometry"/> + </mxCell> + <mxCell id="4" value="<font style="font-size: 20px">DataGear</font>" style="rounded=0;whiteSpace=wrap;html=1;fillColor=none;fontColor=#333333;strokeColor=#000000;strokeWidth=5;" vertex="1" parent="1"> + <mxGeometry x="440" y="210" width="120" height="60" as="geometry"/> + </mxCell> + <mxCell id="5" value="CodeGear" style="ellipse;whiteSpace=wrap;html=1;fontSize=20;strokeWidth=5;" vertex="1" parent="1"> + <mxGeometry x="640" y="200" width="120" height="80" as="geometry"/> + </mxCell> + </root> + </mxGraphModel> + </diagram> +</mxfile> \ No newline at end of file
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.pl-mi2{background-color:var(--color-prettylights-syntax-markup-ignored-bg);color:var(--color-prettylights-syntax-markup-ignored-text)}div#\:\$p>svg>foreignObject>section .pl-mdr{color:var(--color-prettylights-syntax-meta-diff-range);font-weight:700}div#\:\$p>svg>foreignObject>section .pl-ba{color:var(--color-prettylights-syntax-brackethighlighter-angle)}div#\:\$p>svg>foreignObject>section .pl-sg{color:var(--color-prettylights-syntax-sublimelinter-gutter-mark)}div#\:\$p>svg>foreignObject>section .pl-corl{color:var(--color-prettylights-syntax-constant-other-reference-link);text-decoration:underline}div#\:\$p>svg>foreignObject>section g-emoji{display:inline-block;font-family:Apple Color Emoji,Segoe UI Emoji,Segoe UI Symbol;font-size:1em;font-style:normal!important;font-weight:var(--base-text-weight-normal,400);line-height:1;min-width:1ch;vertical-align:-.075em}div#\:\$p>svg>foreignObject>section g-emoji img{height:1em;width:1em}div#\:\$p>svg>foreignObject>section 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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-theme="cr" lang="ja-JP" data-marpit-pagination="1" style="--paginate:true;--theme:cr;" data-marpit-pagination-total="26"> +<h1 id="gears-os%E3%81%AE%E3%83%95%E3%82%A1%E3%82%A4%E3%83%AB%E3%82%B7%E3%82%B9%E3%83%86%E3%83%A0%E3%81%A8db">Gears OSのファイルシステムとDB</h1> + +<p>琉球大学 理工学研究科 知能情報プログラム<br /> +河野研究室</p> +<p>又吉 雄斗, 佐野 巧曜, 河野 真治</p> +</section> +</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="2" data-paginate="true" data-theme="cr" lang="ja-JP" data-marpit-pagination="2" style="--paginate:true;--theme:cr;" data-marpit-pagination-total="26"> +<h2 id="%E3%82%B7%E3%82%B9%E3%83%86%E3%83%A0%E5%85%A8%E4%BD%93%E3%81%AE%E4%BF%A1%E9%A0%BC%E6%80%A7%E3%82%92%E4%B8%8A%E3%81%92%E3%81%9F%E3%81%84">システム全体の信頼性を上げたい</h2> +<ul> +<li>システムの構成要素全体の信頼性を上げる必要がある +<ul> +<li>アプリケーション</li> +<li>OS</li> +<li>ファイルシステム</li> +<li>DB</li> +<li>メモリとSSD</li> +<li>分散ノード</li> +<li>ネットワーク</li> +</ul> +</li> +</ul> +</section> +</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="3" data-paginate="true" data-theme="cr" lang="ja-JP" data-marpit-pagination="3" style="--paginate:true;--theme:cr;" data-marpit-pagination-total="26"> +<h2 id="gears-os%E3%82%92%E4%BD%BF%E3%81%A3%E3%81%A6%E5%AE%9F%E7%8F%BE%E3%81%99%E3%82%8B">Gears OSを使って実現する</h2> +<ul> +<li>CodeGear +<ul> +<li>処理の単位</li> +</ul> +</li> +<li>DataGear +<ul> +<li>データの単位</li> +</ul> +</li> +<li>metaGear +<ul> +<li>データの整合性</li> +<li>資源管理</li> +</ul> +</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-theme="cr" lang="ja-JP" data-marpit-pagination="4" style="--paginate:true;--theme:cr;" data-marpit-pagination-total="26"> +<h2 id="%E4%BF%A1%E9%A0%BC%E6%80%A7%E3%82%92%E4%B8%8A%E3%81%92%E3%82%8B%E6%96%B9%E6%B3%95">信頼性を上げる方法</h2> +<ul> +<li>証明 +<ul> +<li>GearsAgdaを使ってinvariantを証明する</li> +</ul> +</li> +<li>テスト</li> +<li>モデル検査</li> +<li>システムの構成要素全体にこれらの方法を適用したい</li> +<li>既存システムの信頼性における問題点の解決</li> +</ul> +</section> +</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="5" data-paginate="true" data-theme="cr" lang="ja-JP" data-marpit-pagination="5" style="--paginate:true;--theme:cr;" data-marpit-pagination-total="26"> +<h2 id="continuation-based-c">Continuation based C</h2> +<ul> +<li>Cの下位言語である</li> +<li>処理の単位 CodeGear</li> +<li>データの単位 DataGear</li> +<li>ノーマルレベルとメタレベルの切り分け</li> +<li>gotoによる軽量継続</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-theme="cr" lang="ja-JP" data-marpit-pagination="6" style="--paginate:true;--theme:cr;" data-marpit-pagination-total="26"> +<h2 id="codegear%E3%81%A8metacodegear%E3%81%AE%E9%96%A2%E4%BF%82">CodeGearとmetaCodeGearの関係</h2> +<ul> +<li>ノーマルレベルとメタレベルの存在</li> +</ul> +<p><img src="figs/meta_cg_dg.svg" alt="" style="width:1100px;" /></p> +</section> +</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="7" data-paginate="true" data-theme="cr" lang="ja-JP" data-marpit-pagination="7" style="--paginate:true;--theme:cr;" data-marpit-pagination-total="26"> +<h2 id="context">Context</h2> +<ul> +<li>Gears OS上全てのCodeGear，DataGearの参照を持つ</li> +<li>OS上の処理の実行単位 +<ul> +<li>プロセスに相当</li> +</ul> +</li> +<li>Gearの概念ではmetaDataGearに当たる</li> +<li>ノーマルレベルから直接参照されない +<ul> +<li>metaCodeGearから参照される</li> +</ul> +</li> +</ul> +</section> +</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="8" data-paginate="true" data-theme="cr" lang="ja-JP" data-marpit-pagination="8" style="--paginate:true;--theme:cr;" data-marpit-pagination-total="26"> +<h2 id="3%E7%A8%AE%E9%A1%9E%E3%81%AEgears-os">3種類のGears OS</h2> +<ul> +<li>GearsAgda(Agda) +<ul> +<li>形式手法による信頼性の向上</li> +</ul> +</li> +<li>Gears OS(CbC) +<ul> +<li>ユーザーレベルタスクマネージメント</li> +</ul> +</li> +<li>CbC x.v6 ← 今回の実装対象 +<ul> +<li>スタンドアロンOS</li> +</ul> +</li> +</ul> +</section> +</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="9" data-paginate="true" data-theme="cr" lang="ja-JP" data-marpit-pagination="9" style="--paginate:true;--theme:cr;" data-marpit-pagination-total="26"> +<h2 id="codegear%E9%81%B7%E7%A7%BB%E3%81%AE%E6%B5%81%E3%82%8C">CodeGear遷移の流れ</h2> +<p><img src="figs/context.svg" alt="" style="width:1100px;" /></p> +</section> +</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="10" data-paginate="true" data-theme="cr" lang="ja-JP" data-marpit-pagination="10" style="--paginate:true;--theme:cr;" data-marpit-pagination-total="26"> +<h2 id="os%E3%81%A8fs%E3%81%A8db%E3%81%8C%E3%83%90%E3%83%A9%E3%83%90%E3%83%A9">OSとFSとDBがバラバラ</h2> + +<ul> +<li>全体を組み合わせた時の正しさが怪しい</li> +<li>DBは実はファイルの上に作られていたり +<ul> +<li>ファイルに対する書き込みのatomicityが保証されてない</li> +</ul> +</li> +<li>ファイルシステムが提供してるトランザクションが明快でない</li> +<li>それぞれ別々なトランザクションがある</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-theme="cr" lang="ja-JP" data-marpit-pagination="11" style="--paginate:true;--theme:cr;" data-marpit-pagination-total="26"> +<h2 id="fs%E3%81%A8db%E3%82%92redblacktree%E3%81%A7%E7%B5%B1%E4%B8%80">FSとDBをRedBlackTreeで統一</h2> + +<ul> +<li>両方ともRedBlackTreeで実装する +<ul> +<li>組み合わせを考える必要がなくなる</li> +<li>証明のしやすさ</li> +<li>本質的な役割は一緒</li> +<li>トランザクションが統一化される</li> +</ul> +</li> +</ul> +</section> +</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="12" data-paginate="true" data-theme="cr" lang="ja-JP" data-marpit-pagination="12" style="--paginate:true;--theme:cr;" data-marpit-pagination-total="26"> +<h2 id="%E3%82%B9%E3%83%88%E3%83%AC%E3%83%BC%E3%82%B8%E9%9A%8E%E5%B1%A4%E3%81%AE%E5%A4%9A%E6%A7%98%E6%80%A7">ストレージ階層の多様性</h2> +<ul> +<li>HDDのような物理的制約(セクター，トラック)が無くなりつつある</li> +<li>HDDはログをリニアに書き込んでいく用途に向いている</li> +<li>NVMe, MRAMはメモリに近い特性を持つ</li> +</ul> + +<ul> +<li>個々のデバイスの持続性よりも多数デバイス上のコピー</li> +<li>イレイジャーコーディング</li> +<li>メモリとディスクみたいな分け方が時代遅れに</li> +</ul> +</section> +</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="13" data-paginate="true" data-theme="cr" lang="ja-JP" data-marpit-pagination="13" style="--paginate:true;--theme:cr;" data-marpit-pagination-total="26"> +<h2 id="%E3%82%B9%E3%83%88%E3%83%AC%E3%83%BC%E3%82%B8%E9%9A%8E%E5%B1%A4%E3%81%A8%E3%82%A2%E3%83%97%E3%83%AA%E3%82%B1%E3%83%BC%E3%82%B7%E3%83%A7%E3%83%B3">ストレージ階層とアプリケーション</h2> +<ul> +<li>ファイルシステムやDBが多様なストレージ階層に対応していない +<ul> +<li>大容量メモリ</li> +<li>NVMe</li> +<li>SSD</li> +<li>RAID</li> +<li>テープ</li> +</ul> +</li> +</ul> +</section> +</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="14" data-paginate="true" data-theme="cr" lang="ja-JP" data-marpit-pagination="14" style="--paginate:true;--theme:cr;" data-marpit-pagination-total="26"> +<h2 id="%E5%AE%9F%E8%A3%85%E3%81%8C%E3%83%96%E3%83%AD%E3%83%83%E3%82%AF%E3%83%99%E3%83%BC%E3%82%B9">実装がブロックベース</h2> +<ul> +<li>B-Treeによる実装 +<ul> +<li>ディスクのブロックアクセスが前提</li> +<li>ランダムアクセスが前提となっていない</li> +</ul> +</li> +<li>ランダムアクセスの場合B-Treeを用いる利点は少ない</li> +<li>証明しやすいRedBlackTreeを用いることが考えられる</li> +</ul> +</section> +</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="15" data-paginate="true" data-theme="cr" lang="ja-JP" data-marpit-pagination="15" style="--paginate:true;--theme:cr;" data-marpit-pagination-total="26"> +<h2 id="%E3%83%87%E3%83%BC%E3%82%BF%E3%81%AE%E6%8C%81%E7%B6%9A%E6%80%A7">データの持続性</h2> + +<ul> +<li>オンメモリーなRedBlackTree</li> +<li>SSD上のコピー +<ul> +<li>ログ的にコピーしていく</li> +<li>Copying GC</li> +<li>メモリ上とSSD上のデータ構造を統一</li> +</ul> +</li> +<li>非破壊的なRedBlackTree</li> +<li>スキーマ</li> +</ul> +</section> +</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="16" data-paginate="true" data-theme="cr" lang="ja-JP" data-marpit-pagination="16" style="--paginate:true;--theme:cr;" data-marpit-pagination-total="26"> +<h2 id="%E9%9D%9E%E7%A0%B4%E5%A3%8A%E7%9A%84%E3%81%AAredblacktree">非破壊的なRedBlackTree</h2> + +<p><img src="figs/nondestructive_tree_modification.png" alt="" style="width:1100px;" /></p> +</section> +</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="17" data-paginate="true" data-theme="cr" lang="ja-JP" data-marpit-pagination="17" style="--paginate:true;--theme:cr;" data-marpit-pagination-total="26"> +<h2 id="%E3%82%B9%E3%82%AD%E3%83%BC%E3%83%9E%E3%81%AE%E5%95%8F%E9%A1%8C">スキーマの問題</h2> + +<ul> +<li>実は頻繁に変更される +<ul> +<li>なので動的な属性名を設定されたりする</li> +<li>DB理論が役に立たない</li> +<li>過去のDBとの互換性がない</li> +</ul> +</li> +<li>扱うデータはjsonなどで，もはや第一正規形でない</li> +</ul> +</section> +</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="18" data-paginate="true" data-theme="cr" lang="ja-JP" data-marpit-pagination="18" style="--paginate:true;--theme:cr;" data-marpit-pagination-total="26"> +<h2 id="gears-os%E3%81%AB%E3%81%8A%E3%81%91%E3%82%8B%E3%82%B9%E3%82%AD%E3%83%BC%E3%83%9E">Gears OSにおけるスキーマ</h2> +<ul> +<li>ファイルシステムには型が存在しないがスキーマは必要</li> +<li>DBの各テーブルのレコードの型定義</li> +<li>Contextに登録されているDataGearの型</li> +<li>キーを用いたDataGearの参照</li> +<li>RedBlackTreeはDBのテーブル</li> +</ul> +</section> +</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section data-paginate="true" data-theme="cr" lang="ja-JP" data-marpit-pagination="19" style="--paginate:true;--theme:cr;--marpit-advanced-background-split:45%;" data-marpit-pagination-total="26" data-marpit-advanced-background="background" data-marpit-advanced-background-split="right"><div 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data-marpit-pagination-total="26" data-marpit-advanced-background="pseudo" data-marpit-advanced-background-split="right"></section></foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="20" data-paginate="true" data-theme="cr" lang="ja-JP" data-marpit-pagination="20" style="--paginate:true;--theme:cr;" data-marpit-pagination-total="26"> +<h2 id="%E3%82%A4%E3%83%B3%E3%83%94%E3%83%BC%E3%83%80%E3%83%B3%E3%82%B9%E3%83%9F%E3%82%B9%E3%83%9E%E3%83%83%E3%83%81">インピーダンスミスマッチ</h2> +<ul> +<li>プログラムで使用するデータ構造 +<ul> +<li>queue</li> +<li>stack</li> +</ul> +</li> +<li>DBにはリストやキューは入らない +<ul> +<li>第一正規形でないから</li> +</ul> +</li> +<li>データ構造を持続的にしたい +<ul> +<li>なのでファイルシステムのような柔軟性が必要</li> +</ul> +</li> +</ul> +</section> +</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="21" data-paginate="true" data-theme="cr" lang="ja-JP" data-marpit-pagination="21" style="--paginate:true;--theme:cr;" data-marpit-pagination-total="26"> +<h2 id="redblacktree%E3%83%99%E3%83%BC%E3%82%B9%E3%81%AE%E3%83%95%E3%82%A1%E3%82%A4%E3%83%AB%E3%82%B7%E3%82%B9%E3%83%86%E3%83%A0">RedBlackTreeベースのファイルシステム</h2> +<ul> +<li>i-node番号をkeyにする</li> +<li>inodeにはDGのリストが入る</li> +<li>持続性 +<ul> +<li>オンメモリーなRedBlackTree</li> +<li>SSD上のコピー +<ul> +<li>ログ的にコピーしていく</li> +</ul> +</li> +</ul> +</li> +<li>正しくスキーマに対応しているかどうか +<ul> +<li>違反しても良い</li> +</ul> +</li> +</ul> +</section> +</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="22" data-paginate="true" data-theme="cr" lang="ja-JP" data-marpit-pagination="22" style="--paginate:true;--theme:cr;" data-marpit-pagination-total="26"> +<h2 id="%E3%83%90%E3%83%83%E3%82%AF%E3%82%A2%E3%83%83%E3%83%97%E3%81%A8%E3%83%AD%E3%83%BC%E3%83%AB%E3%83%90%E3%83%83%E3%82%AF">バックアップとロールバック</h2> + +<ul> +<li>ロールバックの必要性 +<ul> +<li>トランザクションの失敗</li> +<li>システムクラッシュ</li> +</ul> +</li> +<li>SSDのログからロールバックする +<ul> +<li>Copying GCによるバックアップ</li> +<li>ルートノードがデータのバージョン</li> +</ul> +</li> +</ul> +</section> +</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="23" data-paginate="true" data-theme="cr" lang="ja-JP" data-marpit-pagination="23" style="--paginate:true;--theme:cr;" data-marpit-pagination-total="26"> +<h2 id="%E3%81%BE%E3%81%A8%E3%82%81f">まとめf</h2> +<ul> +<li>すべてRedBlackTreeで構成されている +<ul> +<li>検証はRedBlackTreeだけで良い</li> +<li>invariantで証明する</li> +<li>トランザクション統一化</li> +<li>持続性</li> +<li>柔軟なスキーマ</li> +</ul> +</li> +<li>バックアップとロールバック</li> +</ul> +</section> +</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="24" data-paginate="true" data-theme="cr" lang="ja-JP" data-marpit-pagination="24" style="--paginate:true;--theme:cr;" data-marpit-pagination-total="26"> +<h2 id="%E4%BF%A1%E9%A0%BC%E6%80%A7%E3%81%AE%E4%BF%9D%E8%A8%BC">信頼性の保証</h2> + +<ul> +<li>RedBlackTreeの変更の正しさ</li> +<li>トランザクションの正しさ</li> +<li>アクセス権限の正しさ</li> +<li>SSDへのコピーの正しさ</li> +<li>正しくスキーマに対応しているかどうか +<ul> +<li>違反しても良い</li> +</ul> +</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-theme="cr" lang="ja-JP" data-marpit-pagination="25" style="--paginate:true;--theme:cr;" data-marpit-pagination-total="26"> +<h2 id="%E8%89%B2%E5%95%8F%E9%A1%8C%E3%81%AF%E3%81%82%E3%82%8B">色々問題はある</h2> +<ul> +<li>非破壊ツリーのコピーはメモリ量的にダメではないか</li> +<li>トランザクションが正しく表現されているか +<ul> +<li>RBTreeのルート入れ替えのみ</li> +</ul> +</li> +<li>証明できるか</li> +<li>後方互換性</li> +<li>メモリプロテクションなどの既存のシステムを使わなくて良いか</li> +</ul> +</section> +</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="26" data-paginate="true" data-theme="cr" lang="ja-JP" data-marpit-pagination="26" style="--paginate:true;--theme:cr;" data-marpit-pagination-total="26"> +<h2 id="%E4%BB%8A%E5%BE%8C%E3%81%AE%E8%AA%B2%E9%A1%8C">今後の課題</h2> + +<ul> +<li>データクエリ言語 +<ul> +<li>SQL</li> +<li>SQLより良いものが欲しい +<ul> +<li>ファイルシステムとDBの両方で使える</li> +</ul> +</li> +</ul> +</li> +<li>時系列データ +<ul> +<li>データ圧縮</li> +</ul> +</li> +<li>スタンドアロンなDB +<ul> +<li>ポータビリティ</li> +</ul> +</li> +</ul> +</section> +<script>!function(){"use strict";const t={h1:{proto:()=>HTMLHeadingElement,attrs:{role:"heading","aria-level":"1"},style:"display: block; font-size: 2em; margin-block-start: 0.67em; margin-block-end: 0.67em; margin-inline-start: 0px; margin-inline-end: 0px; font-weight: bold;"},h2:{proto:()=>HTMLHeadingElement,attrs:{role:"heading","aria-level":"2"},style:"display: block; font-size: 1.5em; margin-block-start: 0.83em; margin-block-end: 0.83em; margin-inline-start: 0px; margin-inline-end: 0px; font-weight: 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tabindex="0"><p>目的</p></div><div class="bespoke-marp-note" data-index="4" tabindex="0"><p>ここからGears OSの基礎概念だと明示する</p></div><div class="bespoke-marp-note" data-index="8" tabindex="0"><p>ここまでがGears OSの基礎概念だと明示する</p></div><div class="bespoke-marp-note" data-index="9" tabindex="0"><p>問題提起1 統一化</p></div><div class="bespoke-marp-note" data-index="10" tabindex="0"><p>解決1</p><p>これでFSとDBのシステムは統一化されるが +まだバラバラになっている部分はある</p></div><div class="bespoke-marp-note" data-index="11" tabindex="0"><p>問題提起2 +持続性 メモリやディスク，SSDは別々の仕組みをとっている +最終的に全てRBTreeで表現してしまおうという話に持っていく</p><p>ssdはmemoryに近い性質を持っている</p><p>シークread write</p><p>- メモリやディスク，SSDは別々の仕組みをとっている + - 持続されていない</p></div><div class="bespoke-marp-note" data-index="12" tabindex="0"><p>問題提起2</p><p>階層を分けて考えてしまうから複雑になる</p></div><div class="bespoke-marp-note" data-index="13" tabindex="0"><p>問題提起2 B-treeがよく用いられるがそうでなくて良いの？という感じ</p></div><div class="bespoke-marp-note" data-index="14" tabindex="0"><p>解決2 +ディスク上とメモリ上のデータ構造が一緒という話を入れる</p></div><div class="bespoke-marp-note" data-index="15" tabindex="0"><p>解決2 +データ構造を統一化し，さらに非破壊とすることで持続性の向上へ繋げる</p></div><div class="bespoke-marp-note" data-index="16" tabindex="0"><p>問題提起3 スキーマ +最終的にFSのような柔軟性を持ち合わせることで解決</p><p>ファイルシステムにも型は必要</p></div><div class="bespoke-marp-note" data-index="17" tabindex="0"><p>スキーマ必要だ． +Gears OSではこのように表現できるね． +でも変更されちゃうのはどうするの</p></div><div class="bespoke-marp-note" data-index="18" tabindex="0"><p>本システムでテーブルはこのように表現される->問題提起へ</p></div><div class="bespoke-marp-note" data-index="19" tabindex="0"><p>解決3 解決したいが...とone step置く</p></div><div class="bespoke-marp-note" data-index="20" tabindex="0"><p>本解決3</p></div><div class="bespoke-marp-note" data-index="21" tabindex="0"><p>SSD上のコピーという言葉が出てたよね +そのままコピーをSSDに置いているので，それをバックアップとして使える</p></div><div class="bespoke-marp-note" data-index="22" tabindex="0"><p>一旦解決したことをまとめて，その後評価</p></div><div class="bespoke-marp-note" data-index="23" tabindex="0"><p>このような正しさを確認していく必要があるし， +他にも問題はある(次のスライド)</p></div><div class="bespoke-marp-note" 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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/marp-slide/slide.md Tue Feb 13 17:12:55 2024 +0900 @@ -0,0 +1,182 @@ +--- +marp: true +theme: cr +paginate: true +--- + +<!-- 全体の流れ +- 目的 +- 基礎概念 +- 問題提起 -> 解決 の繰り返し +- 評価 --> + +# GearsOSのファイルシステムにおける GCとレプリケーション + +<!-- +スピーカーノート +--> + +琉球大学 理工学研究科 知能情報プログラム +河野研究室 + +又吉 雄斗 + +--- + +<!-- 目的 --> + +## システム全体の信頼性を上げたい + +- システムの構成要素全体の信頼性を上げる必要がある + - アプリケーション + - OS + - ファイルシステム + - DB + - メモリとSSD + - 分散ノード + - ネットワーク + +--- + +## Gears OSを使って実現する + +- CodeGear + - 処理の単位 +- DataGear + - データの単位 +- metaGear + - データの整合性 + - 資源管理 + +--- + +## 信頼性を上げる方法 + +- 証明 + - GearsAgdaを使ってinvariantを証明する +- テスト +- モデル検査 +- システムの構成要素全体にこれらの方法を適用したい +- 既存システムの信頼性における問題点の解決 + +--- + +<!-- ここからGears OSの基礎概念だと明示する --> + +## Continuation based C + +- Cの下位言語である +- 処理の単位 CodeGear +- データの単位 DataGear +- ノーマルレベルとメタレベルの切り分け +- gotoによる軽量継続 + +--- + +## CodeGearとmetaCodeGearの関係 + +- ノーマルレベルとメタレベルの存在 + + + +--- + +## Context + +- Gears OS上全てのCodeGear，DataGearの参照を持つ +- OS上の処理の実行単位 + - プロセスに相当 +- Gearの概念ではmetaDataGearに当たる +- ノーマルレベルから直接参照されない + - metaCodeGearから参照される + +--- + +## 3種類のGears OS + +- GearsAgda(Agda) + - 形式手法による信頼性の向上 +- Gears OS(CbC) + - ユーザーレベルタスクマネージメント +- CbC x.v6 ← 今回の実装対象 + - スタンドアロンOS + +--- + +## GearsOSとGearsAgda + +--- + +<!-- ここまでがGears OSの基礎概念だと明示する --> + +## CodeGear遷移の流れ + + + +--- + +## 非破壊RedBlackTreeによる構成 + +--- + +## GearsFilesystem + + +--- + +## 多重性やメモリ管理に必要な機能がない + +--- + +## copyRedBlackTreeの実装をした + +--- + +## copyRedBlackTreeができると何ができるようになるか + +多重性やメモリ管理に関する機能を追加できる +GC(defragmentation) +レプリケーション +バックアップ + +--- + +## GCによる非破壊RedBlackTreeの増大問題 + +--- + +## Tree InterfaceのAPIとして実装 + +--- + +## コピーのアルゴリズム + +--- + +## アロケーション部分 + +--- + +## swap + +--- + +## 評価 + +非破壊RedBlackTreeの増大抑制できる +コピーするだけなので木が持続的 +課題点 + 同一Contextへコピーしている + +--- + +## 今後の研究方針 + +--- + +## まとめ + +copyRedBlackTreeを実装した +それにより多重性を確保できるようになった +多重性はシステムの信頼性を向上させる +非破壊RedBlackTreeの増大抑制により実用的に
--- a/mindmaps/gears_fs_db.mm Mon Feb 12 17:54:36 2024 +0900 +++ b/mindmaps/gears_fs_db.mm Tue Feb 13 17:12:55 2024 +0900 @@ -1,6 +1,6 @@ <map version="freeplane 1.9.8"> <!--To view this file, download free mind mapping software Freeplane from https://www.freeplane.org --> -<node TEXT="GearsOS上のファイルシステムとDBの信頼性(仮)" FOLDED="false" ID="ID_452131666" CREATED="1610381621610" MODIFIED="1707213585347" STYLE="oval"> +<node TEXT="GearsOS上のファイルシステムとDBの信頼性(仮)" FOLDED="false" ID="ID_452131666" CREATED="1610381621610" MODIFIED="1707801882816" STYLE="oval"> <font SIZE="18"/> <hook NAME="MapStyle" zoom="0.8"> <properties edgeColorConfiguration="#808080ff,#ff0000ff,#0000ffff,#00ff00ff,#ff00ffff,#00ffffff,#7c0000ff,#00007cff,#007c00ff,#7c007cff,#007c7cff,#7c7c00ff" associatedTemplateLocation="template:/standard-1.6-noEdgeColor.mm" fit_to_viewport="false"/> @@ -974,7 +974,19 @@ </node> <node TEXT="tree->rootを書き換えて，途中のノードからコピーできるみたいなの作りたい" ID="ID_1603927493" CREATED="1706692686178" MODIFIED="1706692704418"/> </node> -<node TEXT="評価" FOLDED="true" POSITION="right" ID="ID_1699170037" CREATED="1706803749390" MODIFIED="1707213585346" HGAP_QUANTITY="14.75 pt" VSHIFT_QUANTITY="121.5 pt"> +<node TEXT="GearsOSとGearsAgda" POSITION="right" ID="ID_733544140" CREATED="1707725731232" MODIFIED="1707725738470"> +<node TEXT="Agdaは定理証明支援系" ID="ID_1915356889" CREATED="1707726700043" MODIFIED="1707726714105"/> +<node TEXT="GearsAgdaはGearsOSの実行単位CodeGearと直接対応している" ID="ID_1381869743" CREATED="1707725738619" MODIFIED="1707725765165"> +<node TEXT="gotoからgotoまで" ID="ID_1042935357" CREATED="1707726490738" MODIFIED="1707726499671"/> +</node> +<node TEXT="RedBlackTreeの証明が進められている" ID="ID_1796353967" CREATED="1707726206978" MODIFIED="1707726225617"/> +<node TEXT="findの証明が完了している" ID="ID_242792232" CREATED="1707726329699" MODIFIED="1707726364229"/> +<node TEXT="insertの証明を進めている" ID="ID_413832620" CREATED="1707726364981" MODIFIED="1707726489560"/> +<node TEXT="GearsAgdaでRBTreeを証明できれば，GearsOSの大部分の構造を証明できたことになる" ID="ID_1229657069" CREATED="1707726542553" MODIFIED="1707726575888"> +<node TEXT="GearsOSの構造の多くはRedBlackTreeで構成されているため" ID="ID_1004423346" CREATED="1707726585550" MODIFIED="1707726602966"/> +</node> +</node> +<node TEXT="評価" POSITION="right" ID="ID_1699170037" CREATED="1706803749390" MODIFIED="1707213585346" HGAP_QUANTITY="14.75 pt" VSHIFT_QUANTITY="121.5 pt"> <node TEXT="説明" ID="ID_1332913546" CREATED="1707024290462" MODIFIED="1707024304655"> <node TEXT="テストコード" FOLDED="true" ID="ID_83989606" CREATED="1707024312272" MODIFIED="1707024315913"> <node TEXT="いくつかの考えられる木の形はテストした" ID="ID_401372478" CREATED="1707024501611" MODIFIED="1707024539431"> @@ -1072,7 +1084,7 @@ <node TEXT="それ以外はまとめと今後の課題に書く" ID="ID_1941288242" CREATED="1706803862696" MODIFIED="1706803878303"/> </node> </node> -<node TEXT="まとめと今後の課題" FOLDED="true" POSITION="right" ID="ID_912711900" CREATED="1706956151544" MODIFIED="1707213611142"> +<node TEXT="まとめと今後の課題" POSITION="right" ID="ID_912711900" CREATED="1706956151544" MODIFIED="1707213611142"> <node TEXT="非破壊RedBlackTreeの増大を防ぐ仕組みを構築できた" ID="ID_418966492" CREATED="1706956585170" MODIFIED="1706956610719"/> <node TEXT="別コンテキストへのコピー" ID="ID_1209930854" CREATED="1706956313462" MODIFIED="1706956324424"/> <node TEXT="GearsOS全体をGCすることも考えられる" ID="ID_1250275844" CREATED="1707013490904" MODIFIED="1707013522142"/> @@ -1088,6 +1100,14 @@ <node TEXT="Contextをコピーすることでフラグメンテーションは解消する" ID="ID_1667984108" CREATED="1707286730333" MODIFIED="1707286747139"> <node TEXT="Gears全体では解消してないかも" ID="ID_1073971147" CREATED="1707286747311" MODIFIED="1707286755075"/> </node> +<node TEXT="SSDに書き込んでデータをpersistentにする" ID="ID_1589020784" CREATED="1707705357976" MODIFIED="1707705370161"> +<node TEXT="木の一部をSSDに書き出すとか" ID="ID_1267827528" CREATED="1707705387592" MODIFIED="1707705397533"/> +</node> +<node TEXT="木を破壊する場合" ID="ID_470528591" CREATED="1707705370519" MODIFIED="1707705410788"/> +<node TEXT="実行中のコピー" ID="ID_1071752009" CREATED="1707705411594" MODIFIED="1707705420741"> +<node TEXT="コピー実行中に変更があった場合は？" ID="ID_501485740" CREATED="1707705427998" MODIFIED="1707705446579"/> +<node TEXT="ノードロックで管理すれば良い" ID="ID_277716335" CREATED="1707705479046" MODIFIED="1707705512045"/> +</node> <node TEXT="今後の課題" ID="ID_428993998" CREATED="1707285565828" MODIFIED="1707285588990"> <node TEXT="別ContextへのALLOCATION" ID="ID_1464367692" CREATED="1707285571840" MODIFIED="1707285601877"> <node TEXT="現状は同一Contextにコピーしている" ID="ID_864566640" CREATED="1707286044589" MODIFIED="1707286060465"/> @@ -1126,7 +1146,7 @@ </node> </node> </node> -<node TEXT="バックアップやGCのタイミング" FOLDED="true" POSITION="left" ID="ID_1968325106" CREATED="1705995867783" MODIFIED="1705995947002"> +<node TEXT="バックアップやGCのタイミング" FOLDED="true" POSITION="left" ID="ID_1968325106" CREATED="1705995867783" MODIFIED="1707801876355" HGAP_QUANTITY="20 pt" VSHIFT_QUANTITY="-73.5 pt"> <node TEXT="木の操作の度にGCしていては効率が悪い" ID="ID_1270257607" CREATED="1705995886579" MODIFIED="1705995983113"> <node TEXT="システムの状態によって処理を切り替える" ID="ID_835268540" CREATED="1705995987307" MODIFIED="1705995998232"/> <node TEXT="メモリがこれくらい使われている" ID="ID_708465587" CREATED="1705996000486" MODIFIED="1705996008587"/> @@ -1147,7 +1167,7 @@ </node> </node> </node> -<node TEXT="レプリケーション手法" FOLDED="true" POSITION="left" ID="ID_1667606869" CREATED="1705990967981" MODIFIED="1705990975745"> +<node TEXT="レプリケーション手法" FOLDED="true" POSITION="left" ID="ID_1667606869" CREATED="1705990967981" MODIFIED="1707801878703" HGAP_QUANTITY="23 pt" VSHIFT_QUANTITY="-65.25 pt"> <node TEXT="bin log" ID="ID_1578494368" CREATED="1705990975951" MODIFIED="1705990978180"/> <node TEXT="WAL" ID="ID_173341311" CREATED="1705991115261" MODIFIED="1705991117448"> <node TEXT="Write Ahead Logging" ID="ID_885834048" CREATED="1705991256045" MODIFIED="1705991267446"/> @@ -1162,7 +1182,7 @@ </node> </node> </node> -<node TEXT="実装" FOLDED="true" POSITION="left" ID="ID_1462455862" CREATED="1706417525408" MODIFIED="1706520562138"> +<node TEXT="実装" FOLDED="true" POSITION="left" ID="ID_1462455862" CREATED="1706417525408" MODIFIED="1707801880634" HGAP_QUANTITY="29.75 pt" VSHIFT_QUANTITY="-83.25 pt"> <node TEXT="CopyRedBlackTreeの実装" ID="ID_1619882257" CREATED="1701697553803" MODIFIED="1706520562137" VSHIFT_QUANTITY="-4.5 pt"> <node TEXT="実装方法" FOLDED="true" ID="ID_1774988166" CREATED="1705735668943" MODIFIED="1705735677711"> <node TEXT="Tree InterfaceのAPIにCopyを追加する" ID="ID_95904284" CREATED="1705735678228" MODIFIED="1705735715335"/> @@ -1229,7 +1249,7 @@ </node> </node> </node> -<node TEXT="評価" FOLDED="true" POSITION="left" ID="ID_186645686" CREATED="1706418118012" MODIFIED="1706418120523"> +<node TEXT="評価" FOLDED="true" POSITION="left" ID="ID_186645686" CREATED="1706418118012" MODIFIED="1707801882814" HGAP_QUANTITY="38.75 pt" VSHIFT_QUANTITY="-64.5 pt"> <node TEXT="スタックを使ってることに関して" ID="ID_1617928125" CREATED="1706417138929" MODIFIED="1706417138929"/> <node TEXT="フラグメンテーション解消できてないことにかんして" ID="ID_912797279" CREATED="1706417138929" MODIFIED="1706417138929"/> <node TEXT="GearsFileSystemで重要なCopyの機能を実装できた" ID="ID_1040965600" CREATED="1706418258268" MODIFIED="1706418270889"/> @@ -1246,5 +1266,47 @@ </node> </node> </node> +<node TEXT="スライド" POSITION="left" ID="ID_1109312213" CREATED="1707801871675" MODIFIED="1707810947177"> +<node TEXT="システム全体の信頼性を向上させたい" ID="ID_1519013410" CREATED="1707809324624" MODIFIED="1707809621777" HGAP_QUANTITY="14 pt" VSHIFT_QUANTITY="-3 pt"/> +<node TEXT="GearsOSで実現する" ID="ID_1781659444" CREATED="1707809341570" MODIFIED="1707809348782"/> +<node TEXT="信頼性を上げる方法" ID="ID_284645498" CREATED="1707809403391" MODIFIED="1707809624565" HGAP_QUANTITY="12.5 pt" VSHIFT_QUANTITY="-33.75 pt"/> +<node TEXT="CbC" ID="ID_958035941" CREATED="1707801942372" MODIFIED="1707802244891"/> +<node TEXT="CodeGearとmetaCodeGear" ID="ID_1503258760" CREATED="1707809428339" MODIFIED="1707809436431"/> +<node TEXT="Context" ID="ID_1498708640" CREATED="1707809445330" MODIFIED="1707809447599"/> +<node TEXT="3種類のGearsOS" ID="ID_1789403817" CREATED="1707809449604" MODIFIED="1707809454625"/> +<node TEXT="GearsOSとGearsAgda" ID="ID_1922073865" CREATED="1707810849140" MODIFIED="1707810857063"/> +<node TEXT="CodeGear遷移の流れ" ID="ID_1864344252" CREATED="1707809502144" MODIFIED="1707809508404"/> +<node TEXT="非破壊RedBlackTreeによる構成" ID="ID_622602101" CREATED="1707805849509" MODIFIED="1707810947176" HGAP_QUANTITY="12.5 pt" VSHIFT_QUANTITY="3.75 pt"/> +<node TEXT="GearsFilesystem" ID="ID_9731029" CREATED="1707810937030" MODIFIED="1707810953288" HGAP_QUANTITY="15.5 pt" VSHIFT_QUANTITY="-61.5 pt"/> +<node TEXT="多重性やメモリ管理に必要な機能がない" ID="ID_1755524219" CREATED="1707809043957" MODIFIED="1707809590104"/> +<node TEXT="copyRedBlackTreeの実装をした" ID="ID_3452822" CREATED="1707802848111" MODIFIED="1707802871025"/> +<node TEXT="copyRedBlackTreeができると何ができるようになるか" FOLDED="true" ID="ID_108556449" CREATED="1707804472923" MODIFIED="1707809906416"> +<node TEXT="多重性やメモリ管理に関する機能を追加できる" ID="ID_42031813" CREATED="1707804510984" MODIFIED="1707805366037"/> +<node TEXT="GC(defragmentation)" ID="ID_240352266" CREATED="1707802572704" MODIFIED="1707809162287"> +<node TEXT="特にこれは欲しい" ID="ID_245613381" CREATED="1707809727579" MODIFIED="1707809740497"/> +</node> +<node TEXT="レプリケーション" ID="ID_854911737" CREATED="1707802624641" MODIFIED="1707802629911"/> +<node TEXT="バックアップ" ID="ID_1828283529" CREATED="1707809645235" MODIFIED="1707809648227"/> +</node> +<node TEXT="GCによる非破壊RedBlackTreeの増大問題" ID="ID_561572897" CREATED="1707809658587" MODIFIED="1707809922510" HGAP_QUANTITY="13.25 pt" VSHIFT_QUANTITY="-71.25 pt"/> +<node TEXT="Tree InterfaceのAPIとして実装" ID="ID_235794385" CREATED="1707802437228" MODIFIED="1707802472777"/> +<node TEXT="コピーのアルゴリズム" ID="ID_1999989614" CREATED="1707802473477" MODIFIED="1707802480540"/> +<node TEXT="アロケーション部分" ID="ID_952299777" CREATED="1707802483093" MODIFIED="1707802493772"/> +<node TEXT="swap" ID="ID_640800397" CREATED="1707802511025" MODIFIED="1707809991542" HGAP_QUANTITY="14.75 pt" VSHIFT_QUANTITY="-21 pt"/> +<node TEXT="評価" ID="ID_922190913" CREATED="1707802640955" MODIFIED="1707809987420"> +<node TEXT="非破壊RedBlackTreeの増大抑制できる" ID="ID_706668254" CREATED="1707802699292" MODIFIED="1707802733788"/> +<node TEXT="コピーするだけなので木が持続的" ID="ID_1768044233" CREATED="1707802719359" MODIFIED="1707802787778"/> +<node TEXT="課題点" ID="ID_146606099" CREATED="1707802646131" MODIFIED="1707802649518"> +<node TEXT="同一Contextへコピーしている" ID="ID_161154382" CREATED="1707802771082" MODIFIED="1707802782242"/> +</node> +</node> +<node TEXT="今後の研究方針" ID="ID_483450755" CREATED="1707805171584" MODIFIED="1707810001419" HGAP_QUANTITY="15.5 pt" VSHIFT_QUANTITY="16.5 pt"/> +<node TEXT="まとめ" ID="ID_1995509457" CREATED="1707802020025" MODIFIED="1707810003706" VSHIFT_QUANTITY="17.25 pt"> +<node TEXT="copyRedBlackTreeを実装した" ID="ID_723776666" CREATED="1707802023680" MODIFIED="1707802079425"/> +<node TEXT="それにより多重性を確保できるようになった" ID="ID_1299421285" CREATED="1707802080169" MODIFIED="1707802116869"/> +<node TEXT="多重性はシステムの信頼性を向上させる" ID="ID_1822229578" CREATED="1707802117853" MODIFIED="1707802132188"/> +<node TEXT="非破壊RedBlackTreeの増大抑制により実用的に" ID="ID_1391218931" CREATED="1707802699292" MODIFIED="1707809767003"/> +</node> +</node> </node> </map>