mirror of
https://github.com/librespeed/speedtest.git
synced 2026-06-28 04:42:06 +00:00
5278912ed4
- Load server list dynamically from servers.json for Docker frontend/dual modes - Copy servers.json to web root in entrypoint.sh for frontend/dual modes - Change back link from href="/" to href="./" for subdirectory installs - Use binary search for visible chart data range (O(log n) vs O(n)) - Add 200ms minimum interval between pings to limit sample rate Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
888 lines
26 KiB
HTML
888 lines
26 KiB
HTML
<!doctype html>
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<html>
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<head>
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<link rel="shortcut icon" href="favicon.ico" />
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<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no, user-scalable=no" />
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<meta charset="UTF-8" />
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<title>LibreSpeed - Stability Test</title>
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<style type="text/css">
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html,
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body {
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border: none;
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padding: 0;
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margin: 0;
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background: #ffffff;
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color: #202020;
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}
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body {
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text-align: center;
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font-family: "Roboto", sans-serif;
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}
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h1 {
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color: #404040;
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}
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nav {
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margin-bottom: 1em;
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}
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nav a {
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color: #6060aa;
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text-decoration: none;
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font-size: 0.95em;
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}
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nav a:hover {
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text-decoration: underline;
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}
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#controls {
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margin: 1em auto;
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}
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#durationSelect,
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#targetSelect {
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font-size: 1em;
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padding: 0.3em 0.5em;
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margin-right: 1em;
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}
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#startBtn {
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display: inline-block;
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margin: 0 auto;
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color: #6060aa;
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background-color: rgba(0, 0, 0, 0);
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border: 0.15em solid #6060ff;
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border-radius: 0.3em;
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transition: all 0.3s;
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box-sizing: border-box;
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width: 8em;
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height: 3em;
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line-height: 2.7em;
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cursor: pointer;
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box-shadow:
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0 0 0 rgba(0, 0, 0, 0.1),
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inset 0 0 0 rgba(0, 0, 0, 0.1);
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}
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#startBtn:hover {
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box-shadow:
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0 0 2em rgba(0, 0, 0, 0.1),
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inset 0 0 1em rgba(0, 0, 0, 0.1);
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}
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#startBtn:before {
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content: "Start";
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}
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#startBtn.running {
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background-color: #ff3030;
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border-color: #ff6060;
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color: #ffffff;
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}
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#startBtn.running:before {
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content: "Abort";
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}
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#resetBtn {
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display: inline-block;
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color: #808080;
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background-color: rgba(0, 0, 0, 0);
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border: 0.15em solid #a0a0a0;
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border-radius: 0.3em;
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transition: all 0.3s;
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box-sizing: border-box;
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width: 6em;
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height: 3em;
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line-height: 2.7em;
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cursor: pointer;
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margin-left: 0.5em;
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box-shadow:
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0 0 0 rgba(0, 0, 0, 0.1),
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inset 0 0 0 rgba(0, 0, 0, 0.1);
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}
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#resetBtn:hover {
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box-shadow:
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0 0 2em rgba(0, 0, 0, 0.1),
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inset 0 0 1em rgba(0, 0, 0, 0.1);
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}
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#serverArea {
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margin: 0.8em 0;
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}
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#server {
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font-size: 1em;
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padding: 0.2em;
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}
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#test {
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margin-top: 2em;
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margin-bottom: 2em;
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}
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div.testGroup {
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display: block;
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margin: 0 auto;
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}
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div.testArea2 {
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display: inline-block;
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width: 10em;
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height: 7em;
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position: relative;
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box-sizing: border-box;
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text-align: center;
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}
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div.testArea2 div.testName {
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display: block;
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text-align: center;
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font-size: 1.4em;
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}
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div.testArea2 div.meterText {
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display: inline-block;
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font-size: 2.5em;
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}
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div.meterText:empty:before {
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content: "0.00";
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}
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div.testArea2 div.unit {
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display: inline-block;
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}
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#rating {
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font-size: 1.3em;
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font-weight: bold;
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margin: 0.5em 0;
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}
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#rating.great {
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color: #2ecc71;
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}
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#rating.good {
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color: #27ae60;
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}
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#rating.poor {
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color: #e67e22;
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}
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#rating.bad {
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color: #e74c3c;
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}
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#rating.none {
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color: #808080;
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}
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#chartContainer {
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margin: 1em auto;
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width: 95%;
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max-width: 60em;
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position: relative;
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}
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#pingChart {
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width: 100%;
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height: 280px;
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border: 1px solid #e0e0e0;
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border-radius: 4px;
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background: #fafafa;
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}
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#optionalControls {
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margin: 1.5em auto;
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max-width: 40em;
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}
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#optionalControls label {
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display: block;
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margin: 0.5em 0;
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}
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#alertThreshold {
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vertical-align: middle;
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width: 200px;
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}
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#downloadCsvBtn {
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margin-top: 0.8em;
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font-size: 0.9em;
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padding: 0.4em 1em;
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cursor: pointer;
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border: 1px solid #6060aa;
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background: none;
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color: #6060aa;
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border-radius: 0.3em;
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}
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#downloadCsvBtn:hover {
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background: #6060aa;
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color: #ffffff;
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}
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.footer {
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margin: 2em 0 1em;
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}
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.footer a {
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color: #808080;
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font-size: 0.85em;
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}
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@media all and (max-width: 40em) {
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body {
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font-size: 0.8em;
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}
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#pingChart {
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height: 200px;
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}
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}
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@media all and (prefers-color-scheme: dark) {
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html,
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body {
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background: #202020;
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color: #f4f4f4;
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color-scheme: dark;
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}
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h1 {
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color: #e0e0e0;
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}
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nav a {
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color: #9090ff;
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}
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#pingChart {
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border-color: #404040;
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background: #1a1a1a;
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}
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a {
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color: #9090ff;
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}
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#startBtn {
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color: #9090ff;
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border-color: #7070ff;
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}
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#startBtn.running {
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background-color: #ff3030;
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border-color: #ff6060;
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color: #ffffff;
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}
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#resetBtn {
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color: #a0a0a0;
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border-color: #606060;
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}
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#downloadCsvBtn {
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color: #9090ff;
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border-color: #9090ff;
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}
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#downloadCsvBtn:hover {
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background: #9090ff;
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color: #202020;
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}
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.footer a {
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color: #a0a0a0;
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}
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}
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</style>
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</head>
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<body>
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<h1>LibreSpeed - Stability Test</h1>
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<nav><a href="./">← Speed Test</a></nav>
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<div id="controls">
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<select id="durationSelect">
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<option value="60">60 Seconds</option>
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<option value="90">90 Seconds</option>
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<option value="120">2 Minutes</option>
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<option value="180">3 Minutes</option>
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<option value="300">5 Minutes</option>
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</select>
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<select id="targetSelect">
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<option value="">Local Server</option>
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<option value="https://www.google.com/generate_204">Google</option>
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<option value="https://www.cloudflare.com/cdn-cgi/trace">Cloudflare</option>
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<option value="https://www.apple.com/library/test/success.html">Apple</option>
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</select>
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<div id="startBtn" onclick="startStop()"></div>
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<div id="resetBtn" onclick="resetTest()">Reset</div>
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</div>
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<div id="serverArea" style="display: none">
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Server:
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<select id="server" onchange="onServerChange(this.value)"></select>
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</div>
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<div id="rating" class="none">--</div>
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<div id="test">
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<div class="testGroup">
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<div class="testArea2">
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<div class="testName">Current</div>
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<div id="statCurrent" class="meterText" style="color: #aa6060"></div>
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<div class="unit">ms</div>
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</div>
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<div class="testArea2">
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<div class="testName">Average</div>
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<div id="statAvg" class="meterText" style="color: #aa6060"></div>
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<div class="unit">ms</div>
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</div>
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<div class="testArea2">
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<div class="testName">Jitter</div>
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<div id="statJitter" class="meterText" style="color: #aa6060"></div>
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<div class="unit">ms</div>
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</div>
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</div>
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<div class="testGroup">
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<div class="testArea2">
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<div class="testName">Min</div>
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<div id="statMin" class="meterText"></div>
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<div class="unit">ms</div>
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</div>
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<div class="testArea2">
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<div class="testName">Max</div>
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<div id="statMax" class="meterText"></div>
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<div class="unit">ms</div>
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</div>
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<div class="testArea2">
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<div class="testName">Loss</div>
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<div id="statLoss" class="meterText"></div>
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<div class="unit">%</div>
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</div>
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<div class="testArea2">
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<div class="testName">Elapsed</div>
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<div id="statElapsed" class="meterText">00:00</div>
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<div class="unit"></div>
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</div>
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</div>
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</div>
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<div id="chartContainer">
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<canvas id="pingChart"></canvas>
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</div>
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<div id="optionalControls">
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<label>
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Alert threshold:
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<input
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type="range"
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id="alertThreshold"
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min="0"
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max="500"
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step="10"
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value="0"
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oninput="updateThreshold(this.value)"
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/>
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<span id="thresholdValue">Off</span>
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</label>
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<button id="downloadCsvBtn" onclick="downloadCsv()">Download CSV</button>
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</div>
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<div class="footer">
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<a href="https://github.com/librespeed/speedtest">Source code</a>
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</div>
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<script type="text/javascript">
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function I(i) {
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return document.getElementById(i);
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}
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// Server configuration (same pattern as index.html)
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var SPEEDTEST_SERVERS = [];
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// State
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var worker = null;
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var updater = null;
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var running = false;
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var allPingData = []; // full dataset for chart and CSV
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var latestData = null;
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var alertThresholdMs = 0;
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var lastBeepTime = 0;
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var audioCtx = null;
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var selectedServer = null;
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// Dark mode detection for canvas colors
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var isDark = window.matchMedia && window.matchMedia("(prefers-color-scheme: dark)").matches;
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try {
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window.matchMedia("(prefers-color-scheme: dark)").addEventListener("change", function (e) {
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isDark = e.matches;
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});
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} catch (e) {}
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// Chart constants
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var VISIBLE_SECONDS = 60;
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var CHART_PADDING_LEFT = 50;
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var CHART_PADDING_RIGHT = 15;
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var CHART_PADDING_TOP = 15;
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var CHART_PADDING_BOTTOM = 30;
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// Load server list dynamically (for Docker frontend/dual modes where servers.json exists)
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function loadServers(callback) {
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var xhr = new XMLHttpRequest();
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xhr.onload = function () {
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try {
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var servers = JSON.parse(xhr.responseText);
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if (Array.isArray(servers) && servers.length > 0) {
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SPEEDTEST_SERVERS = servers;
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}
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} catch (e) {}
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callback();
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};
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xhr.onerror = function () {
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callback();
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};
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xhr.open("GET", "servers.json?r=" + Math.random());
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try {
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xhr.timeout = 2000;
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xhr.ontimeout = xhr.onerror;
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} catch (e) {}
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xhr.send();
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}
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// Server initialization
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function initServers() {
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if (SPEEDTEST_SERVERS.length === 0) {
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I("serverArea").style.display = "none";
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} else {
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I("serverArea").style.display = "";
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// ping servers to find best one
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var completed = 0;
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var best = null;
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for (var i = 0; i < SPEEDTEST_SERVERS.length; i++) {
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(function (idx) {
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pingServer(SPEEDTEST_SERVERS[idx], function (server, rtt) {
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SPEEDTEST_SERVERS[idx].pingT = rtt;
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if (rtt > 0 && (best === null || rtt < best.pingT)) best = SPEEDTEST_SERVERS[idx];
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completed++;
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if (completed === SPEEDTEST_SERVERS.length) {
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// populate dropdown
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for (var j = 0; j < SPEEDTEST_SERVERS.length; j++) {
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if (SPEEDTEST_SERVERS[j].pingT <= 0) continue;
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var opt = document.createElement("option");
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opt.value = j;
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opt.textContent = SPEEDTEST_SERVERS[j].name;
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if (SPEEDTEST_SERVERS[j] === best) opt.selected = true;
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I("server").appendChild(opt);
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}
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selectedServer = best;
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}
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});
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})(i);
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}
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}
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}
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function pingServer(server, callback) {
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var url =
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server.server + server.pingURL + (server.pingURL.match(/\?/) ? "&" : "?") + "cors=true&r=" + Math.random();
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var xhr = new XMLHttpRequest();
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var t = new Date().getTime();
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xhr.onload = function () {
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callback(server, new Date().getTime() - t);
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};
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xhr.onerror = function () {
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callback(server, -1);
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};
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xhr.open("GET", url);
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try {
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xhr.timeout = 2000;
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xhr.ontimeout = xhr.onerror;
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} catch (e) {}
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xhr.send();
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}
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function onServerChange(idx) {
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selectedServer = SPEEDTEST_SERVERS[idx];
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}
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// Start/Stop
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function startStop() {
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if (running) {
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// abort
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if (worker) worker.postMessage("abort");
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stopTest();
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} else {
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startTest();
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}
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}
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function startTest() {
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allPingData = [];
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latestData = null;
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resetUI();
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running = true;
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I("startBtn").className = "running";
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I("durationSelect").disabled = true;
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I("targetSelect").disabled = true;
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I("server").disabled = true;
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var externalTarget = I("targetSelect").value;
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var workerSettings = {
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duration: parseInt(I("durationSelect").value),
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ping_allowPerformanceApi: true,
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url_ping_external: externalTarget
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};
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if (!externalTarget && selectedServer) {
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workerSettings.url_ping = selectedServer.server + selectedServer.pingURL;
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workerSettings.mpot = true;
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}
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worker = new Worker("stability_worker.js?r=" + Math.random());
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worker.onmessage = function (e) {
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var data = JSON.parse(e.data);
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latestData = data;
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// accumulate ping data
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if (data.pingData && data.pingData.length > 0) {
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for (var i = 0; i < data.pingData.length; i++) {
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allPingData.push(data.pingData[i]);
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}
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}
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// check alert threshold
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if (alertThresholdMs > 0 && data.currentPing > alertThresholdMs) {
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playBeep();
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}
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if (data.testState >= 4) {
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stopTest();
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}
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};
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updater = setInterval(function () {
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if (worker) worker.postMessage("status");
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}, 200);
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worker.postMessage("start " + JSON.stringify(workerSettings));
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}
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function stopTest() {
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running = false;
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I("startBtn").className = "";
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I("durationSelect").disabled = false;
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I("targetSelect").disabled = false;
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I("server").disabled = false;
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if (updater) {
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clearInterval(updater);
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updater = null;
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}
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// request final status
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if (worker) {
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worker.postMessage("status");
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setTimeout(function () {
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if (worker) {
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try {
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worker.terminate();
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} catch (e) {}
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worker = null;
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}
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}, 500);
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}
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}
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function resetTest() {
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if (running) {
|
|
if (worker) worker.postMessage("abort");
|
|
stopTest();
|
|
}
|
|
allPingData = [];
|
|
latestData = null;
|
|
resetUI();
|
|
drawChart();
|
|
}
|
|
|
|
function resetUI() {
|
|
I("statCurrent").textContent = "";
|
|
I("statAvg").textContent = "";
|
|
I("statMin").textContent = "";
|
|
I("statMax").textContent = "";
|
|
I("statJitter").textContent = "";
|
|
I("statLoss").textContent = "";
|
|
I("statElapsed").textContent = "";
|
|
I("rating").textContent = "--";
|
|
I("rating").className = "none";
|
|
}
|
|
|
|
// Format helpers
|
|
function fmt(v) {
|
|
v = Number(v);
|
|
if (isNaN(v) || v <= 0) return "--";
|
|
if (v < 10) return v.toFixed(2);
|
|
if (v < 100) return v.toFixed(1);
|
|
return v.toFixed(0);
|
|
}
|
|
|
|
function fmtTime(sec) {
|
|
var m = Math.floor(sec / 60);
|
|
var s = Math.floor(sec % 60);
|
|
return (m < 10 ? "0" : "") + m + ":" + (s < 10 ? "0" : "") + s;
|
|
}
|
|
|
|
// Rating calculation
|
|
function getRating(avg, jit, loss) {
|
|
if (avg <= 0) return { text: "--", cls: "none" };
|
|
if (avg < 30 && jit < 5 && loss < 0.5) return { text: "Great", cls: "great" };
|
|
if (avg < 60 && jit < 15 && loss < 2) return { text: "Good", cls: "good" };
|
|
if (avg < 100 && jit < 30 && loss < 5) return { text: "Poor", cls: "poor" };
|
|
return { text: "Bad", cls: "bad" };
|
|
}
|
|
|
|
// UI update loop
|
|
function updateUI() {
|
|
if (!latestData) return;
|
|
var d = latestData;
|
|
I("statCurrent").textContent = fmt(d.currentPing);
|
|
I("statAvg").textContent = fmt(d.avgPing);
|
|
I("statMin").textContent = d.minPing > 0 ? fmt(d.minPing) : "--";
|
|
I("statMax").textContent = fmt(d.maxPing);
|
|
I("statJitter").textContent = fmt(d.jitter);
|
|
I("statLoss").textContent = d.totalSamples > 0 ? d.packetLoss.toFixed(1) : "--";
|
|
I("statElapsed").textContent = fmtTime(d.elapsed);
|
|
|
|
var r = getRating(d.avgPing, d.jitter, d.packetLoss);
|
|
I("rating").textContent = r.text;
|
|
I("rating").className = r.cls;
|
|
}
|
|
|
|
// Canvas chart rendering
|
|
function drawChart() {
|
|
var canvas = I("pingChart");
|
|
var ctx = canvas.getContext("2d");
|
|
var dp = window.devicePixelRatio || 1;
|
|
var cw = canvas.clientWidth * dp;
|
|
var ch = canvas.clientHeight * dp;
|
|
if (canvas.width !== cw || canvas.height !== ch) {
|
|
canvas.width = cw;
|
|
canvas.height = ch;
|
|
}
|
|
ctx.clearRect(0, 0, cw, ch);
|
|
|
|
var padL = CHART_PADDING_LEFT * dp;
|
|
var padR = CHART_PADDING_RIGHT * dp;
|
|
var padT = CHART_PADDING_TOP * dp;
|
|
var padB = CHART_PADDING_BOTTOM * dp;
|
|
var plotW = cw - padL - padR;
|
|
var plotH = ch - padT - padB;
|
|
|
|
// colors based on theme
|
|
var lineColor = isDark ? "#9090FF" : "#6060AA";
|
|
var fillColor = isDark ? "rgba(144,144,255,0.15)" : "rgba(96,96,170,0.15)";
|
|
var gridColor = isDark ? "#404040" : "#E0E0E0";
|
|
var textColor = isDark ? "#A0A0A0" : "#808080";
|
|
var lostColor = "#e74c3c";
|
|
var thresholdColor = "rgba(231,76,60,0.6)";
|
|
|
|
// determine visible time window
|
|
var data = allPingData;
|
|
var maxTime = 0;
|
|
if (data.length > 0) maxTime = data[data.length - 1].t;
|
|
var timeStart, timeEnd;
|
|
if (maxTime <= VISIBLE_SECONDS) {
|
|
timeStart = 0;
|
|
timeEnd = Math.max(VISIBLE_SECONDS, maxTime);
|
|
} else {
|
|
timeEnd = maxTime;
|
|
timeStart = maxTime - VISIBLE_SECONDS;
|
|
}
|
|
|
|
// binary search to find first visible data point
|
|
var visStart = 0;
|
|
var lo = 0,
|
|
hi = data.length - 1;
|
|
while (lo <= hi) {
|
|
var mid = (lo + hi) >> 1;
|
|
if (data[mid].t < timeStart) lo = mid + 1;
|
|
else hi = mid - 1;
|
|
}
|
|
visStart = lo;
|
|
|
|
// determine Y-axis scale from visible data only
|
|
var yMax = 50; // minimum 50ms scale
|
|
for (var i = visStart; i < data.length && data[i].t <= timeEnd; i++) {
|
|
if (!data[i].lost && data[i].ping > yMax) yMax = data[i].ping;
|
|
}
|
|
yMax = Math.ceil((yMax * 1.2) / 10) * 10; // round up to nearest 10 with 20% headroom
|
|
|
|
var fontSize = 11 * dp;
|
|
ctx.font = fontSize + "px sans-serif";
|
|
ctx.textBaseline = "middle";
|
|
|
|
// grid lines - horizontal
|
|
var ySteps = getYSteps(yMax);
|
|
ctx.strokeStyle = gridColor;
|
|
ctx.lineWidth = dp;
|
|
ctx.fillStyle = textColor;
|
|
ctx.textAlign = "right";
|
|
for (var s = 0; s < ySteps.length; s++) {
|
|
var yVal = ySteps[s];
|
|
if (yVal > yMax) continue;
|
|
var y = padT + plotH - (yVal / yMax) * plotH;
|
|
ctx.beginPath();
|
|
ctx.moveTo(padL, y);
|
|
ctx.lineTo(padL + plotW, y);
|
|
ctx.stroke();
|
|
ctx.fillText(yVal + "", padL - 5 * dp, y);
|
|
}
|
|
|
|
// grid lines - vertical (time ticks)
|
|
ctx.textAlign = "center";
|
|
ctx.textBaseline = "top";
|
|
var timeSpan = timeEnd - timeStart;
|
|
var tickInterval = timeSpan <= 60 ? 10 : timeSpan <= 120 ? 15 : 30;
|
|
var firstTick = Math.ceil(timeStart / tickInterval) * tickInterval;
|
|
for (var t = firstTick; t <= timeEnd; t += tickInterval) {
|
|
var x = padL + ((t - timeStart) / timeSpan) * plotW;
|
|
ctx.beginPath();
|
|
ctx.strokeStyle = gridColor;
|
|
ctx.moveTo(x, padT);
|
|
ctx.lineTo(x, padT + plotH);
|
|
ctx.stroke();
|
|
ctx.fillStyle = textColor;
|
|
ctx.fillText(fmtTime(t), x, padT + plotH + 4 * dp);
|
|
}
|
|
|
|
// axis labels
|
|
ctx.fillStyle = textColor;
|
|
ctx.textAlign = "right";
|
|
ctx.textBaseline = "top";
|
|
ctx.fillText("ms", padL - 5 * dp, padT - 2 * dp);
|
|
|
|
// plot border
|
|
ctx.strokeStyle = gridColor;
|
|
ctx.lineWidth = dp;
|
|
ctx.strokeRect(padL, padT, plotW, plotH);
|
|
|
|
// alert threshold line
|
|
if (alertThresholdMs > 0 && alertThresholdMs <= yMax) {
|
|
var threshY = padT + plotH - (alertThresholdMs / yMax) * plotH;
|
|
ctx.save();
|
|
ctx.setLineDash([6 * dp, 4 * dp]);
|
|
ctx.strokeStyle = thresholdColor;
|
|
ctx.lineWidth = 1.5 * dp;
|
|
ctx.beginPath();
|
|
ctx.moveTo(padL, threshY);
|
|
ctx.lineTo(padL + plotW, threshY);
|
|
ctx.stroke();
|
|
ctx.restore();
|
|
}
|
|
|
|
if (data.length < 2) return;
|
|
|
|
// filter visible data (using binary search start index)
|
|
var visible = [];
|
|
for (var i = visStart; i < data.length && data[i].t <= timeEnd; i++) {
|
|
visible.push(data[i]);
|
|
}
|
|
if (visible.length < 1) return;
|
|
|
|
// draw filled area
|
|
ctx.beginPath();
|
|
var started = false;
|
|
for (var i = 0; i < visible.length; i++) {
|
|
if (visible[i].lost) continue;
|
|
var px = padL + ((visible[i].t - timeStart) / timeSpan) * plotW;
|
|
var py = padT + plotH - (visible[i].ping / yMax) * plotH;
|
|
if (!started) {
|
|
ctx.moveTo(px, padT + plotH);
|
|
ctx.lineTo(px, py);
|
|
started = true;
|
|
} else {
|
|
ctx.lineTo(px, py);
|
|
}
|
|
}
|
|
// close the fill path
|
|
if (started) {
|
|
// find last non-lost point
|
|
for (var i = visible.length - 1; i >= 0; i--) {
|
|
if (!visible[i].lost) {
|
|
var px = padL + ((visible[i].t - timeStart) / timeSpan) * plotW;
|
|
ctx.lineTo(px, padT + plotH);
|
|
break;
|
|
}
|
|
}
|
|
ctx.closePath();
|
|
ctx.fillStyle = fillColor;
|
|
ctx.fill();
|
|
}
|
|
|
|
// draw line
|
|
ctx.beginPath();
|
|
started = false;
|
|
for (var i = 0; i < visible.length; i++) {
|
|
if (visible[i].lost) {
|
|
started = false;
|
|
continue;
|
|
}
|
|
var px = padL + ((visible[i].t - timeStart) / timeSpan) * plotW;
|
|
var py = padT + plotH - (visible[i].ping / yMax) * plotH;
|
|
if (!started) {
|
|
ctx.moveTo(px, py);
|
|
started = true;
|
|
} else {
|
|
ctx.lineTo(px, py);
|
|
}
|
|
}
|
|
ctx.strokeStyle = lineColor;
|
|
ctx.lineWidth = 2 * dp;
|
|
ctx.lineJoin = "round";
|
|
ctx.stroke();
|
|
|
|
// draw lost packet markers
|
|
for (var i = 0; i < visible.length; i++) {
|
|
if (!visible[i].lost) continue;
|
|
var px = padL + ((visible[i].t - timeStart) / timeSpan) * plotW;
|
|
ctx.beginPath();
|
|
ctx.arc(px, padT + plotH - 10 * dp, 3 * dp, 0, Math.PI * 2);
|
|
ctx.fillStyle = lostColor;
|
|
ctx.fill();
|
|
}
|
|
}
|
|
|
|
function getYSteps(yMax) {
|
|
// generate sensible Y-axis grid steps
|
|
if (yMax <= 50) return [10, 20, 30, 40, 50];
|
|
if (yMax <= 100) return [20, 40, 60, 80, 100];
|
|
if (yMax <= 200) return [50, 100, 150, 200];
|
|
if (yMax <= 500) return [100, 200, 300, 400, 500];
|
|
// for very high values
|
|
var step = Math.ceil(yMax / 5 / 100) * 100;
|
|
var steps = [];
|
|
for (var v = step; v <= yMax; v += step) steps.push(v);
|
|
return steps;
|
|
}
|
|
|
|
// Animation frame loop
|
|
window.requestAnimationFrame =
|
|
window.requestAnimationFrame ||
|
|
window.webkitRequestAnimationFrame ||
|
|
window.mozRequestAnimationFrame ||
|
|
window.msRequestAnimationFrame ||
|
|
function (callback) {
|
|
setTimeout(callback, 1000 / 60);
|
|
};
|
|
function frame() {
|
|
requestAnimationFrame(frame);
|
|
updateUI();
|
|
drawChart();
|
|
}
|
|
frame();
|
|
|
|
// Alert threshold
|
|
function updateThreshold(val) {
|
|
alertThresholdMs = parseInt(val);
|
|
I("thresholdValue").textContent = alertThresholdMs > 0 ? alertThresholdMs + " ms" : "Off";
|
|
}
|
|
|
|
function playBeep() {
|
|
var now = new Date().getTime();
|
|
if (now - lastBeepTime < 1000) return; // debounce 1s
|
|
lastBeepTime = now;
|
|
try {
|
|
if (!audioCtx) audioCtx = new (window.AudioContext || window.webkitAudioContext)();
|
|
var osc = audioCtx.createOscillator();
|
|
var gain = audioCtx.createGain();
|
|
osc.frequency.value = 800;
|
|
gain.gain.value = 0.3;
|
|
osc.connect(gain);
|
|
gain.connect(audioCtx.destination);
|
|
osc.start();
|
|
osc.stop(audioCtx.currentTime + 0.1);
|
|
} catch (e) {}
|
|
}
|
|
|
|
// CSV download
|
|
function downloadCsv() {
|
|
if (allPingData.length === 0) return;
|
|
var csv = "elapsed_s,ping_ms,lost\n";
|
|
for (var i = 0; i < allPingData.length; i++) {
|
|
var d = allPingData[i];
|
|
csv += d.t.toFixed(3) + "," + d.ping.toFixed(2) + "," + (d.lost ? "1" : "0") + "\n";
|
|
}
|
|
var blob = new Blob([csv], { type: "text/csv" });
|
|
var url = URL.createObjectURL(blob);
|
|
var a = document.createElement("a");
|
|
a.href = url;
|
|
a.download = "stability_test_" + new Date().toISOString().slice(0, 19).replace(/:/g, "-") + ".csv";
|
|
document.body.appendChild(a);
|
|
a.click();
|
|
document.body.removeChild(a);
|
|
URL.revokeObjectURL(url);
|
|
}
|
|
|
|
// Init — load server list first (async), then initialize UI
|
|
loadServers(function () {
|
|
initServers();
|
|
drawChart();
|
|
});
|
|
</script>
|
|
</body>
|
|
</html>
|