<!DOCTYPE html> <html lang='en'> <head> <meta charset='utf-8'> <style> body {margin: 0; padding: 10px; background-color: #ffffff} h1 {margin: 5px 0 0 0; font-size: 18px; font-weight: normal; text-align: center} header {margin: -24px 0 5px 0; line-height: 24px} button {font: 12px sans-serif; cursor: pointer} p {margin: 5px 0 5px 0} a {color: #0366d6} #hl {position: absolute; display: none; overflow: hidden; white-space: nowrap; pointer-events: none; background-color: #ffffe0; outline: 1px solid #ffc000; height: 15px} #hl span {padding: 0 3px 0 3px} #status {overflow: hidden; white-space: nowrap} #match {overflow: hidden; white-space: nowrap; display: none; float: right; text-align: right} #reset {cursor: pointer} #canvas {width: 100%; height: 480px} </style> </head> <body style='font: 12px Verdana, sans-serif'> <h1>CPU profile</h1> <header style='text-align: left'><button id='reverse' title='Reverse'>🔻</button> <button id='search' title='Search'>🔍</button></header> <header style='text-align: right'>Produced by <a href='https://github.com/jvm-profiling-tools/async-profiler'>async-profiler</a></header> <canvas id='canvas'></canvas> <div id='hl'><span></span></div> <p id='match'>Matched: <span id='matchval'></span> <span id='reset' title='Clear'>❌</span></p> <p id='status'> </p> <script> // Copyright 2020 Andrei Pangin // Licensed under the Apache License, Version 2.0. 'use strict'; var root, rootLevel, px, pattern; var reverse = false; const levels = Array(30); for (let h = 0; h < levels.length; h++) { levels[h] = []; } const canvas = document.getElementById('canvas'); const c = canvas.getContext('2d'); const hl = document.getElementById('hl'); const status = document.getElementById('status'); const canvasWidth = canvas.offsetWidth; const canvasHeight = canvas.offsetHeight; canvas.style.width = canvasWidth + 'px'; canvas.width = canvasWidth * (devicePixelRatio || 1); canvas.height = canvasHeight * (devicePixelRatio || 1); if (devicePixelRatio) c.scale(devicePixelRatio, devicePixelRatio); c.font = document.body.style.font; const palette = [ [0xb2e1b2, 20, 20, 20], [0x50e150, 30, 30, 30], [0x50cccc, 30, 30, 30], [0xe15a5a, 30, 40, 40], [0xc8c83c, 30, 30, 10], [0xe17d00, 30, 30, 0], [0xcce880, 20, 20, 20], ]; function getColor(p) { const v = Math.random(); return '#' + (p[0] + ((p[1] * v) << 16 | (p[2] * v) << 8 | (p[3] * v))).toString(16); } function f(level, left, width, type, title, inln, c1, int) { levels[level].push({left: left, width: width, color: getColor(palette[type]), title: title, details: (int ? ', int=' + int : '') + (c1 ? ', c1=' + c1 : '') + (inln ? ', inln=' + inln : '') }); } function samples(n) { return n === 1 ? '1 sample' : n.toString().replace(/\B(?=(\d{3})+(?!\d))/g, ',') + ' samples'; } function pct(a, b) { return a >= b ? '100' : (100 * a / b).toFixed(2); } function findFrame(frames, x) { let left = 0; let right = frames.length - 1; while (left <= right) { const mid = (left + right) >>> 1; const f = frames[mid]; if (f.left > x) { right = mid - 1; } else if (f.left + f.width <= x) { left = mid + 1; } else { return f; } } if (frames[left] && (frames[left].left - x) * px < 0.5) return frames[left]; if (frames[right] && (x - (frames[right].left + frames[right].width)) * px < 0.5) return frames[right]; return null; } function search(r) { if (r === true && (r = prompt('Enter regexp to search:', '')) === null) { return; } pattern = r ? RegExp(r) : undefined; const matched = render(root, rootLevel); document.getElementById('matchval').textContent = pct(matched, root.width) + '%'; document.getElementById('match').style.display = r ? 'inherit' : 'none'; } function render(newRoot, newLevel) { if (root) { c.fillStyle = '#ffffff'; c.fillRect(0, 0, canvasWidth, canvasHeight); } root = newRoot || levels[0][0]; rootLevel = newLevel || 0; px = canvasWidth / root.width; const x0 = root.left; const x1 = x0 + root.width; const marked = []; function mark(f) { return marked[f.left] >= f.width || (marked[f.left] = f.width); } function totalMarked() { let total = 0; let left = 0; Object.keys(marked).sort(function(a, b) { return a - b; }).forEach(function(x) { if (+x >= left) { total += marked[x]; left = +x + marked[x]; } }); return total; } function drawFrame(f, y, alpha) { if (f.left < x1 && f.left + f.width > x0) { c.fillStyle = pattern && f.title.match(pattern) && mark(f) ? '#ee00ee' : f.color; c.fillRect((f.left - x0) * px, y, f.width * px, 15); if (f.width * px >= 21) { const chars = Math.floor(f.width * px / 7); const title = f.title.length <= chars ? f.title : f.title.substring(0, chars - 2) + '..'; c.fillStyle = '#000000'; c.fillText(title, Math.max(f.left - x0, 0) * px + 3, y + 12, f.width * px - 6); } if (alpha) { c.fillStyle = 'rgba(255, 255, 255, 0.5)'; c.fillRect((f.left - x0) * px, y, f.width * px, 15); } } } for (let h = 0; h < levels.length; h++) { const y = reverse ? h * 16 : canvasHeight - (h + 1) * 16; const frames = levels[h]; for (let i = 0; i < frames.length; i++) { drawFrame(frames[i], y, h < rootLevel); } } return totalMarked(); } canvas.onmousemove = function() { const h = Math.floor((reverse ? event.offsetY : (canvasHeight - event.offsetY)) / 16); if (h >= 0 && h < levels.length) { const f = findFrame(levels[h], event.offsetX / px + root.left); if (f) { if (f != root) getSelection().removeAllRanges(); hl.style.left = (Math.max(f.left - root.left, 0) * px + canvas.offsetLeft) + 'px'; hl.style.width = (Math.min(f.width, root.width) * px) + 'px'; hl.style.top = ((reverse ? h * 16 : canvasHeight - (h + 1) * 16) + canvas.offsetTop) + 'px'; hl.firstChild.textContent = f.title; hl.style.display = 'block'; canvas.title = f.title + '\n(' + samples(f.width) + f.details + ', ' + pct(f.width, levels[0][0].width) + '%)'; canvas.style.cursor = 'pointer'; canvas.onclick = function() { if (f != root) { render(f, h); canvas.onmousemove(); } }; status.textContent = 'Function: ' + canvas.title; return; } } canvas.onmouseout(); } canvas.onmouseout = function() { hl.style.display = 'none'; status.textContent = '\xa0'; canvas.title = ''; canvas.style.cursor = ''; canvas.onclick = ''; } canvas.ondblclick = function() { getSelection().selectAllChildren(hl); } document.getElementById('reverse').onclick = function() { reverse = !reverse; render(); } document.getElementById('search').onclick = function() { search(true); } 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