657 lines
24 KiB
XML
657 lines
24 KiB
XML
<?xml version="1.0" standalone="no"?>
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<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
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<svg version="1.1" width="1200" height="374" onload="init(evt)" viewBox="0 0 1200 374" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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<!-- Flame graph stack visualization. See https://github.com/brendangregg/FlameGraph for latest version, and http://www.brendangregg.com/flamegraphs.html for examples. -->
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<!-- NOTES: -->
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<defs>
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<linearGradient id="background" y1="0" y2="1" x1="0" x2="0" >
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<stop stop-color="#eeeeee" offset="5%" />
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<stop stop-color="#eeeeb0" offset="95%" />
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</linearGradient>
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</defs>
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<style type="text/css">
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text { font-family:Verdana; font-size:12px; fill:rgb(0,0,0); }
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#search, #ignorecase { opacity:0.1; cursor:pointer; }
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#search:hover, #search.show, #ignorecase:hover, #ignorecase.show { opacity:1; }
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#subtitle { text-anchor:middle; font-color:rgb(160,160,160); }
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#title { text-anchor:middle; font-size:17px}
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#unzoom { cursor:pointer; }
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#frames > *:hover { stroke:black; stroke-width:0.5; cursor:pointer; }
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.hide { display:none; }
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.parent { opacity:0.5; }
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</style>
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<script type="text/ecmascript">
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<![CDATA[
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"use strict";
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var details, searchbtn, unzoombtn, matchedtxt, svg, searching, currentSearchTerm, ignorecase, ignorecaseBtn;
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function init(evt) {
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details = document.getElementById("details").firstChild;
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searchbtn = document.getElementById("search");
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ignorecaseBtn = document.getElementById("ignorecase");
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unzoombtn = document.getElementById("unzoom");
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matchedtxt = document.getElementById("matched");
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svg = document.getElementsByTagName("svg")[0];
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searching = 0;
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currentSearchTerm = null;
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}
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window.addEventListener("click", function(e) {
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var target = find_group(e.target);
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if (target) {
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if (target.nodeName == "a") {
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if (e.ctrlKey === false) return;
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e.preventDefault();
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}
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if (target.classList.contains("parent")) unzoom();
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zoom(target);
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}
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else if (e.target.id == "unzoom") unzoom();
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else if (e.target.id == "search") search_prompt();
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else if (e.target.id == "ignorecase") toggle_ignorecase();
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}, false)
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// mouse-over for info
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// show
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window.addEventListener("mouseover", function(e) {
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var target = find_group(e.target);
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if (target) details.nodeValue = "Function: " + g_to_text(target);
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}, false)
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// clear
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window.addEventListener("mouseout", function(e) {
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var target = find_group(e.target);
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if (target) details.nodeValue = ' ';
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}, false)
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// ctrl-F for search
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window.addEventListener("keydown",function (e) {
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if (e.keyCode === 114 || (e.ctrlKey && e.keyCode === 70)) {
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e.preventDefault();
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search_prompt();
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}
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}, false)
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// ctrl-I to toggle case-sensitive search
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window.addEventListener("keydown",function (e) {
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if (e.ctrlKey && e.keyCode === 73) {
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e.preventDefault();
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toggle_ignorecase();
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}
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}, false)
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// functions
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function find_child(node, selector) {
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var children = node.querySelectorAll(selector);
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if (children.length) return children[0];
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return;
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}
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function find_group(node) {
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var parent = node.parentElement;
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if (!parent) return;
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if (parent.id == "frames") return node;
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return find_group(parent);
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}
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function orig_save(e, attr, val) {
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if (e.attributes["_orig_" + attr] != undefined) return;
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if (e.attributes[attr] == undefined) return;
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if (val == undefined) val = e.attributes[attr].value;
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e.setAttribute("_orig_" + attr, val);
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}
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function orig_load(e, attr) {
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if (e.attributes["_orig_"+attr] == undefined) return;
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e.attributes[attr].value = e.attributes["_orig_" + attr].value;
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e.removeAttribute("_orig_"+attr);
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}
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function g_to_text(e) {
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var text = find_child(e, "title").firstChild.nodeValue;
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return (text)
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}
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function g_to_func(e) {
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var func = g_to_text(e);
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// if there's any manipulation we want to do to the function
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// name before it's searched, do it here before returning.
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return (func);
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}
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function update_text(e) {
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var r = find_child(e, "rect");
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var t = find_child(e, "text");
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var w = parseFloat(r.attributes.width.value) -3;
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var txt = find_child(e, "title").textContent.replace(/\([^(]*\)$/,"");
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t.attributes.x.value = parseFloat(r.attributes.x.value) + 3;
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// Smaller than this size won't fit anything
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if (w < 2 * 12 * 0.59) {
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t.textContent = "";
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return;
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}
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t.textContent = txt;
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// Fit in full text width
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if (/^ *$/.test(txt) || t.getSubStringLength(0, txt.length) < w)
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return;
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for (var x = txt.length - 2; x > 0; x--) {
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if (t.getSubStringLength(0, x + 2) <= w) {
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t.textContent = txt.substring(0, x) + "..";
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return;
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}
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}
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t.textContent = "";
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}
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// zoom
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function zoom_reset(e) {
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if (e.attributes != undefined) {
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orig_load(e, "x");
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orig_load(e, "width");
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}
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if (e.childNodes == undefined) return;
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for (var i = 0, c = e.childNodes; i < c.length; i++) {
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zoom_reset(c[i]);
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}
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}
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function zoom_child(e, x, ratio) {
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if (e.attributes != undefined) {
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if (e.attributes.x != undefined) {
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orig_save(e, "x");
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e.attributes.x.value = (parseFloat(e.attributes.x.value) - x - 10) * ratio + 10;
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if (e.tagName == "text")
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e.attributes.x.value = find_child(e.parentNode, "rect[x]").attributes.x.value + 3;
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}
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if (e.attributes.width != undefined) {
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orig_save(e, "width");
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e.attributes.width.value = parseFloat(e.attributes.width.value) * ratio;
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}
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}
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if (e.childNodes == undefined) return;
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for (var i = 0, c = e.childNodes; i < c.length; i++) {
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zoom_child(c[i], x - 10, ratio);
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}
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}
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function zoom_parent(e) {
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if (e.attributes) {
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if (e.attributes.x != undefined) {
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orig_save(e, "x");
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e.attributes.x.value = 10;
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}
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if (e.attributes.width != undefined) {
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orig_save(e, "width");
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e.attributes.width.value = parseInt(svg.width.baseVal.value) - (10 * 2);
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}
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}
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if (e.childNodes == undefined) return;
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for (var i = 0, c = e.childNodes; i < c.length; i++) {
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zoom_parent(c[i]);
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}
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}
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function zoom(node) {
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var attr = find_child(node, "rect").attributes;
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var width = parseFloat(attr.width.value);
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var xmin = parseFloat(attr.x.value);
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var xmax = parseFloat(xmin + width);
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var ymin = parseFloat(attr.y.value);
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var ratio = (svg.width.baseVal.value - 2 * 10) / width;
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// XXX: Workaround for JavaScript float issues (fix me)
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var fudge = 0.0001;
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unzoombtn.classList.remove("hide");
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var el = document.getElementById("frames").children;
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for (var i = 0; i < el.length; i++) {
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var e = el[i];
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var a = find_child(e, "rect").attributes;
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var ex = parseFloat(a.x.value);
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var ew = parseFloat(a.width.value);
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var upstack;
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// Is it an ancestor
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if (0 == 0) {
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upstack = parseFloat(a.y.value) > ymin;
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} else {
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upstack = parseFloat(a.y.value) < ymin;
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}
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if (upstack) {
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// Direct ancestor
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if (ex <= xmin && (ex+ew+fudge) >= xmax) {
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e.classList.add("parent");
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zoom_parent(e);
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update_text(e);
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}
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// not in current path
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else
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e.classList.add("hide");
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}
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// Children maybe
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else {
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// no common path
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if (ex < xmin || ex + fudge >= xmax) {
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e.classList.add("hide");
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}
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else {
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zoom_child(e, xmin, ratio);
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update_text(e);
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}
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}
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}
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search();
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}
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function unzoom() {
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unzoombtn.classList.add("hide");
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var el = document.getElementById("frames").children;
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for(var i = 0; i < el.length; i++) {
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el[i].classList.remove("parent");
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el[i].classList.remove("hide");
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zoom_reset(el[i]);
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update_text(el[i]);
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}
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search();
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}
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// search
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function toggle_ignorecase() {
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ignorecase = !ignorecase;
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if (ignorecase) {
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ignorecaseBtn.classList.add("show");
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} else {
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ignorecaseBtn.classList.remove("show");
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}
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reset_search();
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search();
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}
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function reset_search() {
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var el = document.querySelectorAll("#frames rect");
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for (var i = 0; i < el.length; i++) {
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orig_load(el[i], "fill")
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}
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}
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function search_prompt() {
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if (!searching) {
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var term = prompt("Enter a search term (regexp " +
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"allowed, eg: ^ext4_)"
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+ (ignorecase ? ", ignoring case" : "")
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+ "\nPress Ctrl-i to toggle case sensitivity", "");
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if (term != null) {
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currentSearchTerm = term;
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search();
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}
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} else {
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reset_search();
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searching = 0;
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currentSearchTerm = null;
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searchbtn.classList.remove("show");
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searchbtn.firstChild.nodeValue = "Search"
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matchedtxt.classList.add("hide");
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matchedtxt.firstChild.nodeValue = ""
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}
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}
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function search(term) {
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if (currentSearchTerm === null) return;
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var term = currentSearchTerm;
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var re = new RegExp(term, ignorecase ? 'i' : '');
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var el = document.getElementById("frames").children;
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var matches = new Object();
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var maxwidth = 0;
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for (var i = 0; i < el.length; i++) {
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var e = el[i];
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var func = g_to_func(e);
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var rect = find_child(e, "rect");
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if (func == null || rect == null)
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continue;
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// Save max width. Only works as we have a root frame
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var w = parseFloat(rect.attributes.width.value);
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if (w > maxwidth)
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maxwidth = w;
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if (func.match(re)) {
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// highlight
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var x = parseFloat(rect.attributes.x.value);
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orig_save(rect, "fill");
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rect.attributes.fill.value = "rgb(230,0,230)";
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// remember matches
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if (matches[x] == undefined) {
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matches[x] = w;
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} else {
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if (w > matches[x]) {
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// overwrite with parent
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matches[x] = w;
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}
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}
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searching = 1;
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}
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}
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if (!searching)
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return;
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searchbtn.classList.add("show");
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searchbtn.firstChild.nodeValue = "Reset Search";
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// calculate percent matched, excluding vertical overlap
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var count = 0;
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var lastx = -1;
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var lastw = 0;
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var keys = Array();
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for (k in matches) {
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if (matches.hasOwnProperty(k))
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keys.push(k);
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}
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// sort the matched frames by their x location
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// ascending, then width descending
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keys.sort(function(a, b){
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return a - b;
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});
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// Step through frames saving only the biggest bottom-up frames
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// thanks to the sort order. This relies on the tree property
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// where children are always smaller than their parents.
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var fudge = 0.0001; // JavaScript floating point
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for (var k in keys) {
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var x = parseFloat(keys[k]);
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var w = matches[keys[k]];
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if (x >= lastx + lastw - fudge) {
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count += w;
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lastx = x;
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lastw = w;
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}
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}
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// display matched percent
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matchedtxt.classList.remove("hide");
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var pct = 100 * count / maxwidth;
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if (pct != 100) pct = pct.toFixed(1)
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matchedtxt.firstChild.nodeValue = "Matched: " + pct + "%";
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}
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]]>
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</script>
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<rect x="0.0" y="0" width="1200.0" height="374.0" fill="url(#background)" />
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<text id="title" x="600.00" y="24" >Flame Graph</text>
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<text id="details" x="10.00" y="357" > </text>
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<text id="unzoom" x="10.00" y="24" class="hide">Reset Zoom</text>
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<text id="search" x="1090.00" y="24" >Search</text>
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<text id="ignorecase" x="1174.00" y="24" >ic</text>
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<text id="matched" x="1090.00" y="357" > </text>
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<g id="frames">
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<g >
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<title>update_process_times (2 samples, 0.03%)</title><rect x="393.4" y="165" width="0.4" height="15.0" fill="rgb(215,143,5)" rx="2" ry="2" />
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<text x="396.38" y="175.5" ></text>
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</g>
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<g >
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<title>apic_timer_interrupt (9 samples, 0.15%)</title><rect x="1185.4" y="197" width="1.8" height="15.0" fill="rgb(249,145,36)" rx="2" ry="2" />
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<text x="1188.42" y="207.5" ></text>
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</g>
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<g >
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<title>update_process_times (1 samples, 0.02%)</title><rect x="1187.0" y="149" width="0.2" height="15.0" fill="rgb(234,188,10)" rx="2" ry="2" />
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<text x="1190.01" y="159.5" ></text>
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</g>
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<g >
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<title>task_tick_fair (2 samples, 0.03%)</title><rect x="1186.6" y="101" width="0.4" height="15.0" fill="rgb(238,142,23)" rx="2" ry="2" />
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<text x="1189.62" y="111.5" ></text>
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</g>
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<g >
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<title>flush_smp_call_function_queue (5 samples, 0.08%)</title><rect x="1188.8" y="165" width="1.0" height="15.0" fill="rgb(228,174,11)" rx="2" ry="2" />
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<text x="1191.81" y="175.5" ></text>
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</g>
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<g >
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<title>ctx_resched (5 samples, 0.08%)</title><rect x="1188.8" y="101" width="1.0" height="15.0" fill="rgb(233,71,23)" rx="2" ry="2" />
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<text x="1191.81" y="111.5" ></text>
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</g>
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<g >
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<title>swapgs_restore_regs_and_return_to_usermode (1 samples, 0.02%)</title><rect x="1189.8" y="213" width="0.2" height="15.0" fill="rgb(210,135,39)" rx="2" ry="2" />
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<text x="1192.80" y="223.5" ></text>
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</g>
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<g >
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<title>account_user_time (1 samples, 0.02%)</title><rect x="1188.0" y="117" width="0.2" height="15.0" fill="rgb(230,137,41)" rx="2" ry="2" />
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<text x="1191.01" y="127.5" ></text>
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</g>
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<g >
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<title>perf_event_task_tick (1 samples, 0.02%)</title><rect x="1186.0" y="117" width="0.2" height="15.0" fill="rgb(218,184,21)" rx="2" ry="2" />
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<text x="1189.02" y="127.5" ></text>
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</g>
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<g >
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<title>cpumask_next_and (1 samples, 0.02%)</title><rect x="1185.8" y="85" width="0.2" height="15.0" fill="rgb(225,197,25)" rx="2" ry="2" />
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<text x="1188.82" y="95.5" ></text>
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</g>
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<g >
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<title>generic_smp_call_function_single_interrupt (5 samples, 0.08%)</title><rect x="1188.8" y="181" width="1.0" height="15.0" fill="rgb(253,80,39)" rx="2" ry="2" />
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<text x="1191.81" y="191.5" ></text>
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</g>
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<g >
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<title>scheduler_tick (2 samples, 0.03%)</title><rect x="1188.4" y="133" width="0.4" height="15.0" fill="rgb(236,109,39)" rx="2" ry="2" />
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<text x="1191.41" y="143.5" ></text>
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</g>
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<g >
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<title>perf_event_task_tick (2 samples, 0.03%)</title><rect x="1186.2" y="101" width="0.4" height="15.0" fill="rgb(225,135,38)" rx="2" ry="2" />
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<text x="1189.22" y="111.5" ></text>
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</g>
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<g >
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<title>__intel_pmu_enable_all.constprop.23 (5 samples, 0.08%)</title><rect x="1188.8" y="53" width="1.0" height="15.0" fill="rgb(243,169,53)" rx="2" ry="2" />
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<text x="1191.81" y="63.5" ></text>
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</g>
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<g >
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<title>account_process_tick (1 samples, 0.02%)</title><rect x="1188.0" y="133" width="0.2" height="15.0" fill="rgb(239,58,17)" rx="2" ry="2" />
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<text x="1191.01" y="143.5" ></text>
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</g>
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<g >
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<title>tick_handle_periodic (4 samples, 0.07%)</title><rect x="1188.0" y="181" width="0.8" height="15.0" fill="rgb(229,18,12)" rx="2" ry="2" />
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<text x="1191.01" y="191.5" ></text>
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</g>
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<g >
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<g >
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<g >
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<g >
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<g >
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|
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<title>c (5,928 samples, 100.00%)</title><rect x="10.0" y="245" width="1180.0" height="15.0" fill="rgb(207,126,8)" rx="2" ry="2" />
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|
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|
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|
|
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</g>
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<g >
|
|
<title>a (2,000 samples, 33.74%)</title><rect x="789.1" y="213" width="398.1" height="15.0" fill="rgb(208,23,33)" rx="2" ry="2" />
|
|
<text x="792.10" y="223.5" >a</text>
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|
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|
|
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|
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|
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|
|
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|
|
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|
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<text x="13.00" y="287.5" >__libc_start_main</text>
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|
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<g >
|
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|
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|
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|
|
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|
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|
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|
|
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|
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|
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<g >
|
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|
|
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|
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|
|
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|
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|
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|
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