Update index.html
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@@ -3,16 +3,28 @@
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<head>
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<meta charset="UTF-8" />
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<meta name="viewport" content="width=device-width, initial-scale=1.0" />
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<meta property="og:title" content="磁盘调度算法可视化" />
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<meta property="og:description" content="磁盘调度算法可视化" />
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<meta
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property="og:title"
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content="Disk Scheduling Algorithm Visualization"
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/>
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<meta
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property="og:description"
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content="Disk Scheduling Algorithm Visualization"
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/>
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<meta
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property="og:image"
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content="https://proxy.xixu.us.kg/?url=https%3A%2F%2Fxi-xu.me%2Fimages%2Ffavicon.png"
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/>
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<meta property="og:url" content="https://os.xixu.us.kg" />
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<meta name="description" content="磁盘调度算法可视化" />
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<meta name="keywords" content="磁盘调度算法可视化" />
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<title>磁盘调度算法可视化</title>
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<meta
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name="description"
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content="Disk Scheduling Algorithm Visualization"
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/>
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<meta
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name="keywords"
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content="Disk Scheduling Algorithm Visualization"
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/>
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<title>Disk Scheduling Algorithm Visualization</title>
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<link
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rel="icon"
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href="https://proxy.xixu.us.kg/?url=https%3A%2F%2Fxi-xu.me%2Fimages%2Ffavicon.png"
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@@ -22,11 +34,11 @@
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</head>
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<body>
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<div class="container">
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<h1>磁盘调度算法可视化</h1>
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<h1>Disk Scheduling Algorithm Visualization</h1>
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<div class="controls">
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<div class="input-row">
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<label>磁头初始位置:</label>
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<label>Initial Head Position:</label>
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<input
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type="number"
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id="initialHead"
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@@ -35,24 +47,24 @@
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max="199"
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/>
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<label>请求队列:</label>
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<label>Request Queue:</label>
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<input
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type="text"
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id="requestQueue"
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value="82,170,43,140,24,16,190"
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placeholder="用逗号分隔的数字"
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placeholder="Comma-separated numbers"
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/>
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</div>
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<div class="buttons-row">
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<button onclick="reset()">重置</button>
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<button onclick="startFCFS()">开始 FCFS</button>
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<button onclick="startSSTF()">开始 SSTF</button>
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<button onclick="startSCAN()">开始 SCAN</button>
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<label>SCAN 初始方向:</label>
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<button onclick="reset()">Reset</button>
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<button onclick="startFCFS()">Start FCFS</button>
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<button onclick="startSSTF()">Start SSTF</button>
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<button onclick="startSCAN()">Start SCAN</button>
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<label>SCAN Direction:</label>
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<select id="scanDirection">
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<option value="right">向右</option>
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<option value="left">向左</option>
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<option value="right">Right</option>
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<option value="left">Left</option>
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</select>
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</div>
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</div>
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@@ -70,11 +82,11 @@
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<div id="stats">
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<div class="stat-item">
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<span>总寻道时间:</span>
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<span>Total Seek Time:</span>
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<span class="stat-value" id="seekTime">0</span>
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</div>
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<div class="stat-item">
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<span>当前位置:</span>
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<span>Current Position:</span>
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<span class="stat-value" id="currentPos">0</span>
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</div>
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</div>
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@@ -83,9 +95,9 @@
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<table id="comparisonTable">
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<thead>
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<tr>
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<th>算法</th>
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<th>总寻道时间</th>
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<th>执行顺序</th>
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<th>Algorithm</th>
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<th>Total Seek Time</th>
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<th>Execution Order</th>
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</tr>
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</thead>
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<tbody>
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@@ -111,39 +123,47 @@
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onclick="resetComparisonTable()"
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class="reset-table-btn"
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>
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重置表格
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Reset Table
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</button>
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</div>
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</div>
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<details class="algorithm-comparison">
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<summary>算法特点比较</summary>
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<summary>Algorithm Characteristics Comparison</summary>
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<div class="comparison-content">
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<div class="algorithm-card">
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<h3>FCFS (先来先服务)</h3>
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<h3>FCFS (First Come First Serve)</h3>
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<ul>
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<li>按请求到达的顺序进行服务</li>
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<li>实现简单，公平</li>
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<li>性能较差，可能造成磁头频繁长距离移动</li>
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<li>不会出现饥饿现象</li>
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<li>Serves requests in order of arrival</li>
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<li>Simple implementation, fair</li>
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<li>
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Poor performance, may cause frequent
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long-distance head movements
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</li>
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<li>No starvation</li>
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</ul>
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</div>
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<div class="algorithm-card">
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<h3>SSTF (最短寻道时间优先)</h3>
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<h3>SSTF (Shortest Seek Time First)</h3>
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<ul>
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<li>优先处理距离当前磁头最近的请求</li>
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<li>平均寻道时间较短</li>
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<li>可能造成远处请求长时间等待（饥饿）</li>
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<li>局部性能优秀</li>
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<li>
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Prioritizes closest requests to current head
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position
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</li>
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<li>Lower average seek time</li>
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<li>May cause starvation for distant requests</li>
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<li>Excellent local performance</li>
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</ul>
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</div>
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<div class="algorithm-card">
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<h3>SCAN (电梯算法)</h3>
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<h3>SCAN (Elevator Algorithm)</h3>
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<ul>
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<li>按一个方向移动直到末端，再反向移动</li>
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<li>避免了饥饿现象</li>
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<li>对于双向磁盘访问较为公平</li>
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<li>性能介于 FCFS 和 SSTF 之间</li>
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<li>
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Moves in one direction until end, then reverses
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</li>
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<li>Prevents starvation</li>
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<li>Fair for bidirectional disk access</li>
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<li>Performance between FCFS and SSTF</li>
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</ul>
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</div>
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</div>
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