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+<html>
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+ <head>
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+ <title>VNC Performance Benchmark</title>
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+ <link rel="stylesheet" href="include/plain.css">
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+ </head>
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+ <body>
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+
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+ Passes: <input id='passes' style='width:50' value=3>
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+
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+ <input id='startButton' type='button' value='Start' style='width:100px'
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+ onclick="start();" disabled>
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+
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+ <br><br>
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+
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+ Results:<br>
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+ <textarea id="messages" style="font-size: 9;" cols=80 rows=15></textarea>
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+
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+ <br><br>
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+
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+ <div id="VNC_screen">
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+ <div id="VNC_status_bar" class="VNC_status_bar" style="margin-top: 0px;">
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+ <table border=0 width=100%><tr>
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+ <td><div id="VNC_status">Loading</div></td>
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+ </tr></table>
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+ </div>
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+ <canvas id="VNC_canvas" width="640px" height="20px">
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+ Canvas not supported.
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+ </canvas>
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+ </div>
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+
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+ </body>
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+
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+ <!--
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+ <script type='text/javascript'
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+ src='http://getfirebug.com/releases/lite/1.2/firebug-lite-compressed.js'></script>
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+ -->
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+
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+ <script src="include/vnc.js"></script>
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+ <script src="include/playback.js"></script>
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+ <script src="data_multi.js"></script>
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+
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+ <script>
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+ var start_time, VNC_frame_data, pass, passes, encIdx,
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+ encOrder = ['raw', 'rre', 'hextile', 'tightpng', 'copyrect'],
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+ encTot = {}, encMin = {}, encMax = {},
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+ passCur, passTot, passMin, passMax;
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+
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+ function msg(str) {
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+ console.log(str);
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+ var cell = $('messages');
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+ cell.innerHTML += str + "\n";
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+ cell.scrollTop = cell.scrollHeight;
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+ }
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+ function dbgmsg(str) {
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+ if (Util.get_logging() === 'debug') {
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+ msg(str);
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+ }
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+ }
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+
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+ updateState = function (rfb, state, oldstate, mesg) {
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+ switch (state) {
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+ case 'failed':
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+ case 'fatal':
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+ msg("noVNC sent '" + state +
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+ "' state during pass " + pass +
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+ ", iteration " + iteration +
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+ " frame " + frame_idx);
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+ test_state = 'failed';
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+ break;
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+ case 'loaded':
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+ $('startButton').disabled = false;
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+ break;
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+ }
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+ if (typeof mesg !== 'undefined') {
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+ $('VNC_status').innerHTML = mesg;
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+ }
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+ }
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+
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+ function start() {
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+ $('startButton').value = "Running";
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+ $('startButton').disabled = true;
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+
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+ mode = 'perftest'; // full-speed
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+ passes = $('passes').value;
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+ pass = 1;
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+ encIdx = 0;
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+
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+ // Render each encoding once for each pass
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+ iterations = 1;
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+
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+ // Initialize stats counters
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+ for (i = 0; i < encOrder.length; i++) {
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+ enc = encOrder[i];
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+ encTot[i] = 0;
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+ encMin[i] = 2<<23; // Something sufficiently large
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+ encMax[i] = 0;
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+ }
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+ passCur = 0;
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+ passTot = 0;
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+ passMin = 2<<23;
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+ passMax = 0;
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+
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+ // Fire away
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+ next_encoding();
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+ }
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+
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+ function next_encoding() {
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+ var encName;
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+
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+ if (encIdx >= encOrder.length) {
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+ // Accumulate pass stats
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+ if (passCur < passMin) {
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+ passMin = passCur;
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+ }
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+ if (passCur > passMax) {
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+ passMax = passCur;
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+ }
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+ msg("Pass " + pass + " took " + passCur + " ms");
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+
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+ passCur = 0;
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+ encIdx = 0;
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+ pass += 1;
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+ if (pass > passes) {
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+ // We are finished
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+ rfb.get_canvas().stop(); // Shut-off event interception
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+ $('startButton').disabled = false;
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+ $('startButton').value = "Start";
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+ finish_passes();
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+ return; // We are finished, terminate
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+ }
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+ }
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+
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+ encName = encOrder[encIdx];
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+ dbgmsg("Rendering pass " + pass + " encoding '" + encName + "'");
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+
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+ VNC_frame_data = VNC_frame_data_multi[encName];
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+ iteration = 0;
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+ start_time = (new Date()).getTime();
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+
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+ next_iteration();
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+ }
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+
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+ // Finished rendering current encoding
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+ function finish() {
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+ var total_time, end_time = (new Date()).getTime();
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+ total_time = end_time - start_time;
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+
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+ dbgmsg("Encoding " + encOrder[encIdx] + " took " + total_time + "ms");
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+
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+ passCur += total_time;
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+ passTot += total_time;
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+
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+ // Accumulate stats
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+ encTot[encIdx] += total_time;
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+ if (total_time < encMin[encIdx]) {
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+ encMin[encIdx] = total_time;
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+ }
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+ if (total_time > encMax[encIdx]) {
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+ encMax[encIdx] = total_time;
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+ }
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+
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+ encIdx += 1;
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+ next_encoding();
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+ }
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+
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+ function finish_passes() {
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+ var i, enc, avg, passAvg;
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+ msg("STATS (for " + passes + " passes)");
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+ // Encoding stats
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+ for (i = 0; i < encOrder.length; i++) {
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+ enc = encOrder[i];
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+ avg = (encTot[i] / passes).toFixed(1);
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+ msg(" " + enc + ": " + encTot[i] + " ms, " +
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+ encMin[i] + "/" + avg + "/" + encMax[i] +
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+ " (min/avg/max)");
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+
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+ }
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+ // Print pass stats
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+ passAvg = (passTot / passes).toFixed(1);
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+ msg("\n All passes: " + passTot + " ms, " +
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+ passMin + "/" + passAvg + "/" + passMax +
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+ " (min/avg/max)");
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+ }
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+
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+ window.onload = function() {
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+ var i, enc;
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+ dbgmsg("Frame lengths:");
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+ for (i = 0; i < encOrder.length; i++) {
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+ enc = encOrder[i];
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+ dbgmsg(" " + enc + ": " + VNC_frame_data_multi[enc].length);
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+ }
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+ rfb = RFB({'target': 'VNC_canvas',
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+ 'updateState': updateState});
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+ rfb.testMode(send_array);
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+ }
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+ </script>
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+</html>
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Joel Martin