diff --git a/flamegraph.svg b/flamegraph.svg
deleted file mode 100644
index 087eb26..0000000
--- a/flamegraph.svg
+++ /dev/null
@@ -1,419 +0,0 @@
-<?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="182" onload="init(evt)" viewBox="0 0 1200 182" 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="#eeeeee" offset="5%"/><stop stop-color="#eeeeb0" offset="95%"/></linearGradient></defs><style type="text/css">
-text { font-family:"Verdana"; font-size:12px; fill:rgb(0,0,0); }
-#title { text-anchor:middle; font-size:17px; }
-#search { opacity:0.1; cursor:pointer; }
-#search:hover, #search.show { opacity:1; }
-#subtitle { text-anchor:middle; font-color:rgb(160,160,160); }
-#unzoom { cursor:pointer; }
-#frames > *:hover { stroke:black; stroke-width:0.5; cursor:pointer; }
-.hide { display:none; }
-.parent { opacity:0.5; }
-</style><script type="text/ecmascript"><![CDATA[var nametype = 'Function:';
-var fontsize = 12;
-var fontwidth = 0.59;
-var xpad = 10;
-var inverted = false;
-var searchcolor = 'rgb(230,0,230)';
-var fluiddrawing = true;
-var truncate_text_right = false;]]><![CDATA["use strict";
-var details, searchbtn, unzoombtn, matchedtxt, svg, searching, frames;
-function init(evt) {
-    details = document.getElementById("details").firstChild;
-    searchbtn = document.getElementById("search");
-    unzoombtn = document.getElementById("unzoom");
-    matchedtxt = document.getElementById("matched");
-    svg = document.getElementsByTagName("svg")[0];
-    frames = document.getElementById("frames");
-    searching = 0;
-
-    // Use GET parameters to restore a flamegraph's state.
-    var restore_state = function() {
-        var params = get_params();
-        if (params.x && params.y)
-            zoom(find_group(document.querySelector('[x="' + params.x + '"][y="' + params.y + '"]')));
-        if (params.s)
-            search(params.s);
-    };
-
-    if (fluiddrawing) {
-        // Make width dynamic so the SVG fits its parent's width.
-        svg.removeAttribute("width");
-        // Edge requires us to have a viewBox that gets updated with size changes.
-        var isEdge = /Edge\/\d./i.test(navigator.userAgent);
-        if (!isEdge) {
-          svg.removeAttribute("viewBox");
-        }
-        var update_for_width_change = function() {
-            if (isEdge) {
-                svg.attributes.viewBox.value = "0 0 " + svg.width.baseVal.value + " " + svg.height.baseVal.value;
-            }
-
-            // Keep consistent padding on left and right of frames container.
-            frames.attributes.width.value = svg.width.baseVal.value - xpad * 2;
-
-            // Text truncation needs to be adjusted for the current width.
-            var el = frames.children;
-            for(var i = 0; i < el.length; i++) {
-                update_text(el[i]);
-            }
-
-            // Keep search elements at a fixed distance from right edge.
-            var svgWidth = svg.width.baseVal.value;
-            searchbtn.attributes.x.value = svgWidth - xpad - 100;
-            matchedtxt.attributes.x.value = svgWidth - xpad - 100;
-        };
-        window.addEventListener('resize', function() {
-            update_for_width_change();
-        });
-        // This needs to be done asynchronously for Safari to work.
-        setTimeout(function() {
-            unzoom();
-            update_for_width_change();
-            restore_state();
-        }, 0);
-    } else {
-        restore_state();
-    }
-}
-// event listeners
-window.addEventListener("click", function(e) {
-    var target = find_group(e.target);
-    if (target) {
-        if (target.nodeName == "a") {
-            if (e.ctrlKey === false) return;
-            e.preventDefault();
-        }
-        if (target.classList.contains("parent")) unzoom();
-        zoom(target);
-
-        // set parameters for zoom state
-        var el = target.querySelector("rect");
-        if (el && el.attributes && el.attributes.y && el.attributes._orig_x) {
-            var params = get_params()
-            params.x = el.attributes._orig_x.value;
-            params.y = el.attributes.y.value;
-            history.replaceState(null, null, parse_params(params));
-        }
-    }
-    else if (e.target.id == "unzoom") {
-        unzoom();
-
-        // remove zoom state
-        var params = get_params();
-        if (params.x) delete params.x;
-        if (params.y) delete params.y;
-        history.replaceState(null, null, parse_params(params));
-    }
-    else if (e.target.id == "search") search_prompt();
-}, false)
-// mouse-over for info
-// show
-window.addEventListener("mouseover", function(e) {
-    var target = find_group(e.target);
-    if (target) details.nodeValue = nametype + " " + g_to_text(target);
-}, false)
-// clear
-window.addEventListener("mouseout", function(e) {
-    var target = find_group(e.target);
-    if (target) details.nodeValue = ' ';
-}, false)
-// ctrl-F for search
-window.addEventListener("keydown",function (e) {
-    if (e.keyCode === 114 || (e.ctrlKey && e.keyCode === 70)) {
-        e.preventDefault();
-        search_prompt();
-    }
-}, false)
-// functions
-function get_params() {
-    var params = {};
-    var paramsarr = window.location.search.substr(1).split('&');
-    for (var i = 0; i < paramsarr.length; ++i) {
-        var tmp = paramsarr[i].split("=");
-        if (!tmp[0] || !tmp[1]) continue;
-        params[tmp[0]]  = decodeURIComponent(tmp[1]);
-    }
-    return params;
-}
-function parse_params(params) {
-    var uri = "?";
-    for (var key in params) {
-        uri += key + '=' + encodeURIComponent(params[key]) + '&';
-    }
-    if (uri.slice(-1) == "&")
-        uri = uri.substring(0, uri.length - 1);
-    if (uri == '?')
-        uri = window.location.href.split('?')[0];
-    return uri;
-}
-function find_child(node, selector) {
-    var children = node.querySelectorAll(selector);
-    if (children.length) return children[0];
-    return;
-}
-function find_group(node) {
-    var parent = node.parentElement;
-    if (!parent) return;
-    if (parent.id == "frames") return node;
-    return find_group(parent);
-}
-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) * frames.attributes.width.value / 100 - 3;
-    var txt = find_child(e, "title").textContent.replace(/\([^(]*\)$/,"");
-    t.attributes.x.value = format_percent((parseFloat(r.attributes.x.value) + (100 * 3 / frames.attributes.width.value)));
-    // Smaller than this size won't fit anything
-    if (w < 2 * fontsize * fontwidth) {
-        t.textContent = "";
-        return;
-    }
-    t.textContent = txt;
-    // Fit in full text width
-    if (/^ *\$/.test(txt) || t.getComputedTextLength() < w)
-        return;
-    if (truncate_text_right) {
-        // Truncate the right side of the text.
-        for (var x = txt.length - 2; x > 0; x--) {
-            if (t.getSubStringLength(0, x + 2) <= w) {
-                t.textContent = txt.substring(0, x) + "..";
-                return;
-            }
-        }
-    } else {
-        // Truncate the left side of the text.
-        for (var x = 2; x < txt.length; x++) {
-            if (t.getSubStringLength(x - 2, txt.length) <= w) {
-                t.textContent = ".." + txt.substring(x, txt.length);
-                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 = format_percent((parseFloat(e.attributes.x.value) - x) * ratio);
-            if (e.tagName == "text") {
-                e.attributes.x.value = format_percent(parseFloat(find_child(e.parentNode, "rect[x]").attributes.x.value) + (100 * 3 / frames.attributes.width.value));
-            }
-        }
-        if (e.attributes.width != undefined) {
-            orig_save(e, "width");
-            e.attributes.width.value = format_percent(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, ratio);
-    }
-}
-function zoom_parent(e) {
-    if (e.attributes) {
-        if (e.attributes.x != undefined) {
-            orig_save(e, "x");
-            e.attributes.x.value = "0.0%";
-        }
-        if (e.attributes.width != undefined) {
-            orig_save(e, "width");
-            e.attributes.width.value = "100.0%";
-        }
-    }
-    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 = xmin + width;
-    var ymin = parseFloat(attr.y.value);
-    var ratio = 100 / width;
-    // XXX: Workaround for JavaScript float issues (fix me)
-    var fudge = 0.001;
-    unzoombtn.classList.remove("hide");
-    var el = frames.children;
-    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 (!inverted) {
-            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.classList.add("parent");
-                zoom_parent(e);
-                update_text(e);
-            }
-            // not in current path
-            else
-                e.classList.add("hide");
-        }
-        // Children maybe
-        else {
-            // no common path
-            if (ex < xmin || ex + fudge >= xmax) {
-                e.classList.add("hide");
-            }
-            else {
-                zoom_child(e, xmin, ratio);
-                update_text(e);
-            }
-        }
-    }
-}
-function unzoom() {
-    unzoombtn.classList.add("hide");
-    var el = frames.children;
-    for(var i = 0; i < el.length; i++) {
-        el[i].classList.remove("parent");
-        el[i].classList.remove("hide");
-        zoom_reset(el[i]);
-        update_text(el[i]);
-    }
-}
-// search
-function reset_search() {
-    var el = document.querySelectorAll("#frames rect");
-    for (var i = 0; i < el.length; i++) {
-        orig_load(el[i], "fill")
-    }
-    var params = get_params();
-    delete params.s;
-    history.replaceState(null, null, parse_params(params));
-}
-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.classList.remove("show");
-        searchbtn.firstChild.nodeValue = "Search"
-        matchedtxt.classList.add("hide");
-        matchedtxt.firstChild.nodeValue = ""
-    }
-}
-function search(term) {
-    var re = new RegExp(term);
-    var el = frames.children;
-    var matches = new Object();
-    var maxwidth = 0;
-    for (var i = 0; i < el.length; i++) {
-        var e = el[i];
-        var func = g_to_func(e);
-        var rect = find_child(e, "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 = searchcolor;
-            // 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;
-    var params = get_params();
-    params.s = term;
-    history.replaceState(null, null, parse_params(params));
-
-    searchbtn.classList.add("show");
-    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.classList.remove("hide");
-    var pct = 100 * count / maxwidth;
-    if (pct != 100) pct = pct.toFixed(1);
-    matchedtxt.firstChild.nodeValue = "Matched: " + pct + "%";
-}
-function format_percent(n) {
-    return n.toFixed(4) + "%";
-}
-]]></script><rect x="0" y="0" width="100%" height="182" fill="url(#background)"/><text id="title" x="50.0000%" y="24.00">Flame Graph</text><text id="details" x="10" y="165.00"> </text><text id="unzoom" class="hide" x="10" y="24.00">Reset Zoom</text><text id="search" x="1090" y="24.00">Search</text><text id="matched" x="1090" y="165.00"> </text><svg id="frames" x="10" width="1180"><g><title>[libm-2.32.so] (1 samples, 0.35%)</title><rect x="0.0000%" y="85" width="0.3460%" height="15" fill="rgb(227,0,7)"/><text x="0.2500%" y="95.50"></text></g><g><title>[unknown] (2 samples, 0.69%)</title><rect x="0.0000%" y="101" width="0.6920%" height="15" fill="rgb(217,0,24)"/><text x="0.2500%" y="111.50"></text></g><g><title>main (1 samples, 0.35%)</title><rect x="0.3460%" y="85" width="0.3460%" height="15" fill="rgb(221,193,54)"/><text x="0.5960%" y="95.50"></text></g><g><title>[libm-2.32.so] (65 samples, 22.49%)</title><rect x="61.9377%" y="53" width="22.4913%" height="15" fill="rgb(248,212,6)"/><text x="62.1877%" y="63.50">[libm-2.32.so]</text></g><g><title>minmax_t&lt;long, minmax_t&lt;long&gt;(span&lt;long&gt; const&amp;)::{lambda(long)#1}&gt; (1 samples, 0.35%)</title><rect x="84.4291%" y="53" width="0.3460%" height="15" fill="rgb(208,68,35)"/><text x="84.6791%" y="63.50"></text></g><g><title>rand_r (6 samples, 2.08%)</title><rect x="84.7751%" y="53" width="2.0761%" height="15" fill="rgb(232,128,0)"/><text x="85.0251%" y="63.50">r..</text></g><g><title>rand_r@plt (2 samples, 0.69%)</title><rect x="86.8512%" y="53" width="0.6920%" height="15" fill="rgb(207,160,47)"/><text x="87.1012%" y="63.50"></text></g><g><title>rng::xoroshiro128plus::sample (3 samples, 1.04%)</title><rect x="87.5433%" y="53" width="1.0381%" height="15" fill="rgb(228,23,34)"/><text x="87.7933%" y="63.50"></text></g><g><title>sin@plt (1 samples, 0.35%)</title><rect x="88.5813%" y="53" width="0.3460%" height="15" fill="rgb(218,30,26)"/><text x="88.8313%" y="63.50"></text></g><g><title>std::vector&lt;unsigned long, std::allocator&lt;unsigned long&gt; &gt;::_M_realloc_insert&lt;unsigned long&gt; (22 samples, 7.61%)</title><rect x="88.9273%" y="53" width="7.6125%" height="15" fill="rgb(220,122,19)"/><text x="89.1773%" y="63.50">std::vecto..</text></g><g><title>__memmove_avx_unaligned_erms (22 samples, 7.61%)</title><rect x="88.9273%" y="37" width="7.6125%" height="15" fill="rgb(250,228,42)"/><text x="89.1773%" y="47.50">__memmove_..</text></g><g><title>__libc_start_main (281 samples, 97.23%)</title><rect x="2.0761%" y="85" width="97.2318%" height="15" fill="rgb(240,193,28)"/><text x="2.3261%" y="95.50">__libc_start_main</text></g><g><title>main (281 samples, 97.23%)</title><rect x="2.0761%" y="69" width="97.2318%" height="15" fill="rgb(216,20,37)"/><text x="2.3261%" y="79.50">main</text></g><g><title>std::vector&lt;unsigned long, std::allocator&lt;unsigned long&gt; &gt;::vector (8 samples, 2.77%)</title><rect x="96.5398%" y="53" width="2.7682%" height="15" fill="rgb(206,188,39)"/><text x="96.7898%" y="63.50">st..</text></g><g><title>__memset_avx2_erms (8 samples, 2.77%)</title><rect x="96.5398%" y="37" width="2.7682%" height="15" fill="rgb(217,207,13)"/><text x="96.7898%" y="47.50">__..</text></g><g><title>_start (286 samples, 98.96%)</title><rect x="0.6920%" y="101" width="98.9619%" height="15" fill="rgb(231,73,38)"/><text x="0.9420%" y="111.50">_start</text></g><g><title>_dl_start (1 samples, 0.35%)</title><rect x="99.3080%" y="85" width="0.3460%" height="15" fill="rgb(225,20,46)"/><text x="99.5580%" y="95.50"></text></g><g><title>_dl_sysdep_start (1 samples, 0.35%)</title><rect x="99.3080%" y="69" width="0.3460%" height="15" fill="rgb(210,31,41)"/><text x="99.5580%" y="79.50"></text></g><g><title>dl_main (1 samples, 0.35%)</title><rect x="99.3080%" y="53" width="0.3460%" height="15" fill="rgb(221,200,47)"/><text x="99.5580%" y="63.50"></text></g><g><title>all (289 samples, 100%)</title><rect x="0.0000%" y="133" width="100.0000%" height="15" fill="rgb(226,26,5)"/><text x="0.2500%" y="143.50"></text></g><g><title>shuffle3-pgo (289 samples, 100.00%)</title><rect x="0.0000%" y="117" width="100.0000%" height="15" fill="rgb(249,33,26)"/><text x="0.2500%" y="127.50">shuffle3-pgo</text></g><g><title>std::wclog (1 samples, 0.35%)</title><rect x="99.6540%" y="101" width="0.3460%" height="15" fill="rgb(235,183,28)"/><text x="99.9040%" y="111.50"></text></g><g><title>rand_r (1 samples, 0.35%)</title><rect x="99.6540%" y="85" width="0.3460%" height="15" fill="rgb(221,5,38)"/><text x="99.9040%" y="95.50"></text></g></svg></svg>
\ No newline at end of file
diff --git a/perf.data b/perf.data
deleted file mode 100644
index 296897b..0000000
Binary files a/perf.data and /dev/null differ