Created
January 22, 2019 16:40
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offcpuflamegraph
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| <?xml version="1.0" standalone="no"?> | |
| <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd"> | |
| <svg version="1.1" width="1200" height="246" onload="init(evt)" viewBox="0 0 1200 246" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"> | |
| <!-- Flame graph stack visualization. See https://github.com/brendangregg/FlameGraph for latest version, and http://www.brendangregg.com/flamegraphs.html for examples. --> | |
| <!-- NOTES: --> | |
| <defs > | |
| <linearGradient id="background" y1="0" y2="1" x1="0" x2="0" > | |
| <stop stop-color="#f8f8f8" offset="5%" /> | |
| <stop stop-color="#e8e8e8" offset="95%" /> | |
| </linearGradient> | |
| </defs> | |
| <style type="text/css"> | |
| .func_g:hover { stroke:black; stroke-width:0.5; cursor:pointer; } | |
| </style> | |
| <script type="text/ecmascript"> | |
| <![CDATA[ | |
| var details, searchbtn, matchedtxt, svg; | |
| function init(evt) { | |
| details = document.getElementById("details").firstChild; | |
| searchbtn = document.getElementById("search"); | |
| matchedtxt = document.getElementById("matched"); | |
| svg = document.getElementsByTagName("svg")[0]; | |
| searching = 0; | |
| } | |
| // mouse-over for info | |
| function s(node) { // show | |
| info = g_to_text(node); | |
| details.nodeValue = "Function: " + info; | |
| } | |
| function c() { // clear | |
| details.nodeValue = ' '; | |
| } | |
| // ctrl-F for search | |
| window.addEventListener("keydown",function (e) { | |
| if (e.keyCode === 114 || (e.ctrlKey && e.keyCode === 70)) { | |
| e.preventDefault(); | |
| search_prompt(); | |
| } | |
| }) | |
| // functions | |
| function find_child(parent, name, attr) { | |
| var children = parent.childNodes; | |
| for (var i=0; i<children.length;i++) { | |
| if (children[i].tagName == name) | |
| return (attr != undefined) ? children[i].attributes[attr].value : children[i]; | |
| } | |
| return; | |
| } | |
| function orig_save(e, attr, val) { | |
| if (e.attributes["_orig_"+attr] != undefined) return; | |
| if (e.attributes[attr] == undefined) return; | |
| if (val == undefined) val = e.attributes[attr].value; | |
| e.setAttribute("_orig_"+attr, val); | |
| } | |
| function orig_load(e, attr) { | |
| if (e.attributes["_orig_"+attr] == undefined) return; | |
| e.attributes[attr].value = e.attributes["_orig_"+attr].value; | |
| e.removeAttribute("_orig_"+attr); | |
| } | |
| function g_to_text(e) { | |
| var text = find_child(e, "title").firstChild.nodeValue; | |
| return (text) | |
| } | |
| function g_to_func(e) { | |
| var func = g_to_text(e); | |
| // if there's any manipulation we want to do to the function | |
| // name before it's searched, do it here before returning. | |
| return (func); | |
| } | |
| function update_text(e) { | |
| var r = find_child(e, "rect"); | |
| var t = find_child(e, "text"); | |
| var w = parseFloat(r.attributes["width"].value) -3; | |
| var txt = find_child(e, "title").textContent.replace(/\([^(]*\)$/,""); | |
| t.attributes["x"].value = parseFloat(r.attributes["x"].value) +3; | |
| // Smaller than this size won't fit anything | |
| if (w < 2*12*0.59) { | |
| t.textContent = ""; | |
| return; | |
| } | |
| t.textContent = txt; | |
| // Fit in full text width | |
| if (/^ *$/.test(txt) || t.getSubStringLength(0, txt.length) < w) | |
| return; | |
| for (var x=txt.length-2; x>0; x--) { | |
| if (t.getSubStringLength(0, x+2) <= w) { | |
| t.textContent = txt.substring(0,x) + ".."; | |
| return; | |
| } | |
| } | |
| t.textContent = ""; | |
| } | |
| // zoom | |
| function zoom_reset(e) { | |
| if (e.attributes != undefined) { | |
| orig_load(e, "x"); | |
| orig_load(e, "width"); | |
| } | |
| if (e.childNodes == undefined) return; | |
| for(var i=0, c=e.childNodes; i<c.length; i++) { | |
| zoom_reset(c[i]); | |
| } | |
| } | |
| function zoom_child(e, x, ratio) { | |
| if (e.attributes != undefined) { | |
| if (e.attributes["x"] != undefined) { | |
| orig_save(e, "x"); | |
| e.attributes["x"].value = (parseFloat(e.attributes["x"].value) - x - 10) * ratio + 10; | |
| if(e.tagName == "text") e.attributes["x"].value = find_child(e.parentNode, "rect", "x") + 3; | |
| } | |
| if (e.attributes["width"] != undefined) { | |
| orig_save(e, "width"); | |
| e.attributes["width"].value = parseFloat(e.attributes["width"].value) * ratio; | |
| } | |
| } | |
| if (e.childNodes == undefined) return; | |
| for(var i=0, c=e.childNodes; i<c.length; i++) { | |
| zoom_child(c[i], x-10, ratio); | |
| } | |
| } | |
| function zoom_parent(e) { | |
| if (e.attributes) { | |
| if (e.attributes["x"] != undefined) { | |
| orig_save(e, "x"); | |
| e.attributes["x"].value = 10; | |
| } | |
| if (e.attributes["width"] != undefined) { | |
| orig_save(e, "width"); | |
| e.attributes["width"].value = parseInt(svg.width.baseVal.value) - (10*2); | |
| } | |
| } | |
| if (e.childNodes == undefined) return; | |
| for(var i=0, c=e.childNodes; i<c.length; i++) { | |
| zoom_parent(c[i]); | |
| } | |
| } | |
| function zoom(node) { | |
| var attr = find_child(node, "rect").attributes; | |
| var width = parseFloat(attr["width"].value); | |
| var xmin = parseFloat(attr["x"].value); | |
| var xmax = parseFloat(xmin + width); | |
| var ymin = parseFloat(attr["y"].value); | |
| var ratio = (svg.width.baseVal.value - 2*10) / width; | |
| // XXX: Workaround for JavaScript float issues (fix me) | |
| var fudge = 0.0001; | |
| var unzoombtn = document.getElementById("unzoom"); | |
| unzoombtn.style["opacity"] = "1.0"; | |
| var el = document.getElementsByTagName("g"); | |
| for(var i=0;i<el.length;i++){ | |
| var e = el[i]; | |
| var a = find_child(e, "rect").attributes; | |
| var ex = parseFloat(a["x"].value); | |
| var ew = parseFloat(a["width"].value); | |
| // Is it an ancestor | |
| if (0 == 0) { | |
| var upstack = parseFloat(a["y"].value) > ymin; | |
| } else { | |
| var upstack = parseFloat(a["y"].value) < ymin; | |
| } | |
| if (upstack) { | |
| // Direct ancestor | |
| if (ex <= xmin && (ex+ew+fudge) >= xmax) { | |
| e.style["opacity"] = "0.5"; | |
| zoom_parent(e); | |
| e.onclick = function(e){unzoom(); zoom(this);}; | |
| update_text(e); | |
| } | |
| // not in current path | |
| else | |
| e.style["display"] = "none"; | |
| } | |
| // Children maybe | |
| else { | |
| // no common path | |
| if (ex < xmin || ex + fudge >= xmax) { | |
| e.style["display"] = "none"; | |
| } | |
| else { | |
| zoom_child(e, xmin, ratio); | |
| e.onclick = function(e){zoom(this);}; | |
| update_text(e); | |
| } | |
| } | |
| } | |
| } | |
| function unzoom() { | |
| var unzoombtn = document.getElementById("unzoom"); | |
| unzoombtn.style["opacity"] = "0.0"; | |
| var el = document.getElementsByTagName("g"); | |
| for(i=0;i<el.length;i++) { | |
| el[i].style["display"] = "block"; | |
| el[i].style["opacity"] = "1"; | |
| zoom_reset(el[i]); | |
| update_text(el[i]); | |
| } | |
| } | |
| // search | |
| function reset_search() { | |
| var el = document.getElementsByTagName("rect"); | |
| for (var i=0; i < el.length; i++) { | |
| orig_load(el[i], "fill") | |
| } | |
| } | |
| function search_prompt() { | |
| if (!searching) { | |
| var term = prompt("Enter a search term (regexp " + | |
| "allowed, eg: ^ext4_)", ""); | |
| if (term != null) { | |
| search(term) | |
| } | |
| } else { | |
| reset_search(); | |
| searching = 0; | |
| searchbtn.style["opacity"] = "0.1"; | |
| searchbtn.firstChild.nodeValue = "Search" | |
| matchedtxt.style["opacity"] = "0.0"; | |
| matchedtxt.firstChild.nodeValue = "" | |
| } | |
| } | |
| function search(term) { | |
| var re = new RegExp(term); | |
| var el = document.getElementsByTagName("g"); | |
| var matches = new Object(); | |
| var maxwidth = 0; | |
| for (var i = 0; i < el.length; i++) { | |
| var e = el[i]; | |
| if (e.attributes["class"].value != "func_g") | |
| continue; | |
| var func = g_to_func(e); | |
| var rect = find_child(e, "rect"); | |
| if (rect == null) { | |
| // the rect might be wrapped in an anchor | |
| // if nameattr href is being used | |
| if (rect = find_child(e, "a")) { | |
| rect = find_child(r, "rect"); | |
| } | |
| } | |
| if (func == null || rect == null) | |
| continue; | |
| // Save max width. Only works as we have a root frame | |
| var w = parseFloat(rect.attributes["width"].value); | |
| if (w > maxwidth) | |
| maxwidth = w; | |
| if (func.match(re)) { | |
| // highlight | |
| var x = parseFloat(rect.attributes["x"].value); | |
| orig_save(rect, "fill"); | |
| rect.attributes["fill"].value = | |
| "rgb(230,0,230)"; | |
| // remember matches | |
| if (matches[x] == undefined) { | |
| matches[x] = w; | |
| } else { | |
| if (w > matches[x]) { | |
| // overwrite with parent | |
| matches[x] = w; | |
| } | |
| } | |
| searching = 1; | |
| } | |
| } | |
| if (!searching) | |
| return; | |
| searchbtn.style["opacity"] = "1.0"; | |
| searchbtn.firstChild.nodeValue = "Reset Search" | |
| // calculate percent matched, excluding vertical overlap | |
| var count = 0; | |
| var lastx = -1; | |
| var lastw = 0; | |
| var keys = Array(); | |
| for (k in matches) { | |
| if (matches.hasOwnProperty(k)) | |
| keys.push(k); | |
| } | |
| // sort the matched frames by their x location | |
| // ascending, then width descending | |
| keys.sort(function(a, b){ | |
| return a - b; | |
| }); | |
| // Step through frames saving only the biggest bottom-up frames | |
| // thanks to the sort order. This relies on the tree property | |
| // where children are always smaller than their parents. | |
| var fudge = 0.0001; // JavaScript floating point | |
| for (var k in keys) { | |
| var x = parseFloat(keys[k]); | |
| var w = matches[keys[k]]; | |
| if (x >= lastx + lastw - fudge) { | |
| count += w; | |
| lastx = x; | |
| lastw = w; | |
| } | |
| } | |
| // display matched percent | |
| matchedtxt.style["opacity"] = "1.0"; | |
| pct = 100 * count / maxwidth; | |
| if (pct == 100) | |
| pct = "100" | |
| else | |
| pct = pct.toFixed(1) | |
| matchedtxt.firstChild.nodeValue = "Matched: " + pct + "%"; | |
| } | |
| function searchover(e) { | |
| searchbtn.style["opacity"] = "1.0"; | |
| } | |
| function searchout(e) { | |
| if (searching) { | |
| searchbtn.style["opacity"] = "1.0"; | |
| } else { | |
| searchbtn.style["opacity"] = "0.1"; | |
| } | |
| } | |
| ]]> | |
| </script> | |
| <rect x="0.0" y="0" width="1200.0" height="246.0" fill="url(#background)" /> | |
| <text text-anchor="middle" x="600.00" y="24" font-size="17" font-family="Verdana" fill="rgb(0,0,0)" >Off-CPU Time Flame Graph</text> | |
| <text text-anchor="" x="10.00" y="229" font-size="12" font-family="Verdana" fill="rgb(0,0,0)" id="details" > </text> | |
| <text text-anchor="" x="10.00" y="24" font-size="12" font-family="Verdana" fill="rgb(0,0,0)" id="unzoom" onclick="unzoom()" style="opacity:0.0;cursor:pointer" >Reset Zoom</text> | |
| <text text-anchor="" x="1090.00" y="24" font-size="12" font-family="Verdana" fill="rgb(0,0,0)" id="search" onmouseover="searchover()" onmouseout="searchout()" onclick="search_prompt()" style="opacity:0.1;cursor:pointer" >Search</text> | |
| <text text-anchor="" x="1090.00" y="229" font-size="12" font-family="Verdana" fill="rgb(0,0,0)" id="matched" > </text> | |
| <g class="func_g" onmouseover="s(this)" onmouseout="c()" onclick="zoom(this)"> | |
| <title>__schedule (2,778 ms, 12.42%)</title><rect x="98.8" y="37" width="146.5" height="15.0" fill="rgb(124,124,213)" rx="2" ry="2" /> | |
| <text text-anchor="" x="101.75" y="47.5" font-size="12" font-family="Verdana" fill="rgb(0,0,0)" >__schedule</text> | |
| </g> | |
| <g class="func_g" onmouseover="s(this)" onmouseout="c()" onclick="zoom(this)"> | |
| <title>pthread_cond_wait@@GLIBC_2.3.2 (17,516 ms, 78.28%)</title><rect x="266.3" y="165" width="923.7" height="15.0" fill="rgb(101,101,229)" rx="2" ry="2" /> | |
| <text text-anchor="" x="269.29" y="175.5" font-size="12" font-family="Verdana" fill="rgb(0,0,0)" >pthread_cond_wait@@GLIBC_2.3.2</text> | |
| </g> | |
| <g class="func_g" onmouseover="s(this)" onmouseout="c()" onclick="zoom(this)"> | |
| <title>named (22,376 ms, 100.00%)</title><rect x="10.0" y="181" width="1180.0" height="15.0" fill="rgb(104,104,238)" rx="2" ry="2" /> | |
| <text text-anchor="" x="13.00" y="191.5" font-size="12" font-family="Verdana" fill="rgb(0,0,0)" >named</text> | |
| </g> | |
| <g class="func_g" onmouseover="s(this)" onmouseout="c()" onclick="zoom(this)"> | |
| <title>__lll_lock_wait (68 ms, 0.30%)</title><rect x="266.3" y="149" width="3.6" height="15.0" fill="rgb(113,113,209)" rx="2" ry="2" /> | |
| <text text-anchor="" x="269.29" y="159.5" font-size="12" font-family="Verdana" fill="rgb(0,0,0)" ></text> | |
| </g> | |
| <g class="func_g" onmouseover="s(this)" onmouseout="c()" onclick="zoom(this)"> | |
| <title>__lll_lock_wait (2,778 ms, 12.42%)</title><rect x="98.8" y="149" width="146.5" height="15.0" fill="rgb(128,128,190)" rx="2" ry="2" /> | |
| <text text-anchor="" x="101.75" y="159.5" font-size="12" font-family="Verdana" fill="rgb(0,0,0)" >__lll_lock_wait</text> | |
| </g> | |
| <g class="func_g" onmouseover="s(this)" onmouseout="c()" onclick="zoom(this)"> | |
| <title>sys_futex (17,448 ms, 77.98%)</title><rect x="269.9" y="133" width="920.1" height="15.0" fill="rgb(132,132,203)" rx="2" ry="2" /> | |
| <text text-anchor="" x="272.88" y="143.5" font-size="12" font-family="Verdana" fill="rgb(0,0,0)" >sys_futex</text> | |
| </g> | |
| <g class="func_g" onmouseover="s(this)" onmouseout="c()" onclick="zoom(this)"> | |
| <title>__schedule (17,443 ms, 77.95%)</title><rect x="270.1" y="53" width="919.9" height="15.0" fill="rgb(99,99,236)" rx="2" ry="2" /> | |
| <text text-anchor="" x="273.14" y="63.5" font-size="12" font-family="Verdana" fill="rgb(0,0,0)" >__schedule</text> | |
| </g> | |
| <g class="func_g" onmouseover="s(this)" onmouseout="c()" onclick="zoom(this)"> | |
| <title>schedule (68 ms, 0.30%)</title><rect x="266.3" y="53" width="3.6" height="15.0" fill="rgb(121,121,214)" rx="2" ry="2" /> | |
| <text text-anchor="" x="269.29" y="63.5" font-size="12" font-family="Verdana" fill="rgb(0,0,0)" ></text> | |
| </g> | |
| <g class="func_g" onmouseover="s(this)" onmouseout="c()" onclick="zoom(this)"> | |
| <title>sys_futex (2,778 ms, 12.42%)</title><rect x="98.8" y="117" width="146.5" height="15.0" fill="rgb(112,112,236)" rx="2" ry="2" /> | |
| <text text-anchor="" x="101.75" y="127.5" font-size="12" font-family="Verdana" fill="rgb(0,0,0)" >sys_futex</text> | |
| </g> | |
| <g class="func_g" onmouseover="s(this)" onmouseout="c()" onclick="zoom(this)"> | |
| <title>_L_cond_lock_1079 (1,683 ms, 7.52%)</title><rect x="10.0" y="165" width="88.8" height="15.0" fill="rgb(102,102,210)" rx="2" ry="2" /> | |
| <text text-anchor="" x="13.00" y="175.5" font-size="12" font-family="Verdana" fill="rgb(0,0,0)" >_L_cond_lo..</text> | |
| </g> | |
| <g class="func_g" onmouseover="s(this)" onmouseout="c()" onclick="zoom(this)"> | |
| <title>entry_SYSCALL_64_fastpath (399 ms, 1.78%)</title><rect x="245.3" y="149" width="21.0" height="15.0" fill="rgb(110,110,213)" rx="2" ry="2" /> | |
| <text text-anchor="" x="248.25" y="159.5" font-size="12" font-family="Verdana" fill="rgb(0,0,0)" ></text> | |
| </g> | |
| <g class="func_g" onmouseover="s(this)" onmouseout="c()" onclick="zoom(this)"> | |
| <title>_L_lock_1081 (2,778 ms, 12.42%)</title><rect x="98.8" y="165" width="146.5" height="15.0" fill="rgb(125,125,193)" rx="2" ry="2" /> | |
| <text text-anchor="" x="101.75" y="175.5" font-size="12" font-family="Verdana" fill="rgb(0,0,0)" >_L_lock_1081</text> | |
| </g> | |
| <g class="func_g" onmouseover="s(this)" onmouseout="c()" onclick="zoom(this)"> | |
| <title>schedule (2,778 ms, 12.42%)</title><rect x="98.8" y="53" width="146.5" height="15.0" fill="rgb(136,136,223)" rx="2" ry="2" /> | |
| <text text-anchor="" x="101.75" y="63.5" font-size="12" font-family="Verdana" fill="rgb(0,0,0)" >schedule</text> | |
| </g> | |
| <g class="func_g" onmouseover="s(this)" onmouseout="c()" onclick="zoom(this)"> | |
| <title>entry_SYSCALL_64_fastpath (2,778 ms, 12.42%)</title><rect x="98.8" y="133" width="146.5" height="15.0" fill="rgb(100,100,227)" rx="2" ry="2" /> | |
| <text text-anchor="" x="101.75" y="143.5" font-size="12" font-family="Verdana" fill="rgb(0,0,0)" >entry_SYSCALL_64_f..</text> | |
| </g> | |
| <g class="func_g" onmouseover="s(this)" onmouseout="c()" onclick="zoom(this)"> | |
| <title>entry_SYSCALL_64_fastpath (68 ms, 0.30%)</title><rect x="266.3" y="133" width="3.6" height="15.0" fill="rgb(104,104,227)" rx="2" ry="2" /> | |
| <text text-anchor="" x="269.29" y="143.5" font-size="12" font-family="Verdana" fill="rgb(0,0,0)" ></text> | |
| </g> | |
| <g class="func_g" onmouseover="s(this)" onmouseout="c()" onclick="zoom(this)"> | |
| <title>schedule (1,683 ms, 7.52%)</title><rect x="10.0" y="53" width="88.8" height="15.0" fill="rgb(139,139,234)" rx="2" ry="2" /> | |
| <text text-anchor="" x="13.00" y="63.5" font-size="12" font-family="Verdana" fill="rgb(0,0,0)" >schedule</text> | |
| </g> | |
| <g class="func_g" onmouseover="s(this)" onmouseout="c()" onclick="zoom(this)"> | |
| <title>futex_wait_queue_me (68 ms, 0.30%)</title><rect x="266.3" y="69" width="3.6" height="15.0" fill="rgb(139,139,236)" rx="2" ry="2" /> | |
| <text text-anchor="" x="269.29" y="79.5" font-size="12" font-family="Verdana" fill="rgb(0,0,0)" ></text> | |
| </g> | |
| <g class="func_g" onmouseover="s(this)" onmouseout="c()" onclick="zoom(this)"> | |
| <title>__schedule (68 ms, 0.30%)</title><rect x="266.3" y="37" width="3.6" height="15.0" fill="rgb(118,118,241)" rx="2" ry="2" /> | |
| <text text-anchor="" x="269.29" y="47.5" font-size="12" font-family="Verdana" fill="rgb(0,0,0)" ></text> | |
| </g> | |
| <g class="func_g" onmouseover="s(this)" onmouseout="c()" onclick="zoom(this)"> | |
| <title>all (22,376 ms, 100%)</title><rect x="10.0" y="197" width="1180.0" height="15.0" fill="rgb(132,132,199)" rx="2" ry="2" /> | |
| <text text-anchor="" x="13.00" y="207.5" font-size="12" font-family="Verdana" fill="rgb(0,0,0)" ></text> | |
| </g> | |
| <g class="func_g" onmouseover="s(this)" onmouseout="c()" onclick="zoom(this)"> | |
| <title>do_futex (17,448 ms, 77.98%)</title><rect x="269.9" y="117" width="920.1" height="15.0" fill="rgb(108,108,195)" rx="2" ry="2" /> | |
| <text text-anchor="" x="272.88" y="127.5" font-size="12" font-family="Verdana" fill="rgb(0,0,0)" >do_futex</text> | |
| </g> | |
| <g class="func_g" onmouseover="s(this)" onmouseout="c()" onclick="zoom(this)"> | |
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| <title>entry_SYSCALL_64_fastpath (1,683 ms, 7.52%)</title><rect x="10.0" y="133" width="88.8" height="15.0" fill="rgb(128,128,212)" rx="2" ry="2" /> | |
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| <text text-anchor="" x="273.14" y="79.5" font-size="12" font-family="Verdana" fill="rgb(0,0,0)" >schedule</text> | |
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| <text text-anchor="" x="101.75" y="111.5" font-size="12" font-family="Verdana" fill="rgb(0,0,0)" >do_futex</text> | |
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