diff --git a/Cargo.toml b/Cargo.toml
index c76e7ac..3eac055 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -15,3 +15,4 @@ rust_decimal_macros = "1.34"
 fast-float = "0.2"
 rustc-hash = { version = "1.0"}
 memmap2 = {version = "0.9.4"}
+memchr = { version = "2", default-features = false }
diff --git a/flamegraphs/09-use-memchr/flamegraph.svg b/flamegraphs/09-use-memchr/flamegraph.svg
new file mode 100644
index 0000000..d30a6a5
--- /dev/null
+++ b/flamegraphs/09-use-memchr/flamegraph.svg
@@ -0,0 +1,491 @@
+<?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="566" onload="init(evt)" viewBox="0 0 1200 566" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:fg="http://github.com/jonhoo/inferno"><!--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:monospace; font-size:12px }
+#title { text-anchor:middle; font-size:17px; }
+#matched { text-anchor:end; }
+#search { text-anchor:end; 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, known_font_width;
+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");
+    known_font_width = get_monospace_width(frames);
+    total_samples = parseInt(frames.attributes.total_samples.value);
+    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.
+            update_text_for_elements(frames.children);
+
+            // Keep search elements at a fixed distance from right edge.
+            var svgWidth = svg.width.baseVal.value;
+            searchbtn.attributes.x.value = svgWidth - xpad;
+            matchedtxt.attributes.x.value = svgWidth - xpad;
+        };
+        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["fg:x"]) {
+            var params = get_params()
+            params.x = el.attributes["fg: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["fg:orig_" + attr] != undefined) return;
+    if (e.attributes[attr] == undefined) return;
+    if (val == undefined) val = e.attributes[attr].value;
+    e.setAttribute("fg:orig_" + attr, val);
+}
+function orig_load(e, attr) {
+    if (e.attributes["fg:orig_"+attr] == undefined) return;
+    e.attributes[attr].value = e.attributes["fg:orig_" + attr].value;
+    e.removeAttribute("fg: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 get_monospace_width(frames) {
+    // Given the id="frames" element, return the width of text characters if
+    // this is a monospace font, otherwise return 0.
+    text = find_child(frames.children[0], "text");
+    originalContent = text.textContent;
+    text.textContent = "!";
+    bangWidth = text.getComputedTextLength();
+    text.textContent = "W";
+    wWidth = text.getComputedTextLength();
+    text.textContent = originalContent;
+    if (bangWidth === wWidth) {
+        return bangWidth;
+    } else {
+        return 0;
+    }
+}
+function update_text_for_elements(elements) {
+    // In order to render quickly in the browser, you want to do one pass of
+    // reading attributes, and one pass of mutating attributes. See
+    // https://web.dev/avoid-large-complex-layouts-and-layout-thrashing/ for details.
+
+    // Fall back to inefficient calculation, if we're variable-width font.
+    // TODO This should be optimized somehow too.
+    if (known_font_width === 0) {
+        for (var i = 0; i < elements.length; i++) {
+            update_text(elements[i]);
+        }
+        return;
+    }
+
+    var textElemNewAttributes = [];
+    for (var i = 0; i < elements.length; i++) {
+        var e = elements[i];
+        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(/\([^(]*\)$/,"");
+        var newX = format_percent((parseFloat(r.attributes.x.value) + (100 * 3 / frames.attributes.width.value)));
+
+        // Smaller than this size won't fit anything
+        if (w < 2 * known_font_width) {
+            textElemNewAttributes.push([newX, ""]);
+            continue;
+        }
+
+        // Fit in full text width
+        if (txt.length * known_font_width < w) {
+            textElemNewAttributes.push([newX, txt]);
+            continue;
+        }
+
+        var substringLength = Math.floor(w / known_font_width) - 2;
+        if (truncate_text_right) {
+            // Truncate the right side of the text.
+            textElemNewAttributes.push([newX, txt.substring(0, substringLength) + ".."]);
+            continue;
+        } else {
+            // Truncate the left side of the text.
+            textElemNewAttributes.push([newX, ".." + txt.substring(txt.length - substringLength, txt.length)]);
+            continue;
+        }
+    }
+
+    console.assert(textElemNewAttributes.length === elements.length, "Resize failed, please file a bug at https://github.com/jonhoo/inferno/");
+
+    // Now that we know new textContent, set it all in one go so we don't refresh a bazillion times.
+    for (var i = 0; i < elements.length; i++) {
+        var e = elements[i];
+        var values = textElemNewAttributes[i];
+        var t = find_child(e, "text");
+        t.attributes.x.value = values[0];
+        t.textContent = values[1];
+    }
+}
+
+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 (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.tagName == "rect") {
+        e.attributes.x.value = format_percent(100 * parseInt(e.attributes["fg:x"].value) / total_samples);
+        e.attributes.width.value = format_percent(100 * parseInt(e.attributes["fg:w"].value) / total_samples);
+    }
+    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, zoomed_width_samples) {
+    if (e.tagName == "text") {
+        var parent_x = parseFloat(find_child(e.parentNode, "rect[x]").attributes.x.value);
+        e.attributes.x.value = format_percent(parent_x + (100 * 3 / frames.attributes.width.value));
+    } else if (e.tagName == "rect") {
+        e.attributes.x.value = format_percent(100 * (parseInt(e.attributes["fg:x"].value) - x) / zoomed_width_samples);
+        e.attributes.width.value = format_percent(100 * parseInt(e.attributes["fg:w"].value) / zoomed_width_samples);
+    }
+    if (e.childNodes == undefined) return;
+    for(var i = 0, c = e.childNodes; i < c.length; i++) {
+        zoom_child(c[i], x, zoomed_width_samples);
+    }
+}
+function zoom_parent(e) {
+    if (e.attributes) {
+        if (e.attributes.x != undefined) {
+            e.attributes.x.value = "0.0%";
+        }
+        if (e.attributes.width != undefined) {
+            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 = parseInt(attr["fg:w"].value);
+    var xmin = parseInt(attr["fg:x"].value);
+    var xmax = xmin + width;
+    var ymin = parseFloat(attr.y.value);
+    unzoombtn.classList.remove("hide");
+    var el = frames.children;
+    var to_update_text = [];
+    for (var i = 0; i < el.length; i++) {
+        var e = el[i];
+        var a = find_child(e, "rect").attributes;
+        var ex = parseInt(a["fg:x"].value);
+        var ew = parseInt(a["fg:w"].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) >= xmax) {
+                e.classList.add("parent");
+                zoom_parent(e);
+                to_update_text.push(e);
+            }
+            // not in current path
+            else
+                e.classList.add("hide");
+        }
+        // Children maybe
+        else {
+            // no common path
+            if (ex < xmin || ex >= xmax) {
+                e.classList.add("hide");
+            }
+            else {
+                zoom_child(e, xmin, width);
+                to_update_text.push(e);
+            }
+        }
+    }
+    update_text_for_elements(to_update_text);
+}
+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_for_elements(el);
+}
+// 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];
+        // Skip over frames which are either not visible, or below the zoomed-to frame
+        if (e.classList.contains("hide") || e.classList.contains("parent")) {
+            continue;
+        }
+        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 = parseInt(rect.attributes["fg:w"].value);
+        if (w > maxwidth)
+            maxwidth = w;
+        if (func.match(re)) {
+            // highlight
+            var x = parseInt(rect.attributes["fg: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.
+    for (var k in keys) {
+        var x = parseInt(keys[k]);
+        var w = matches[keys[k]];
+        if (x >= lastx + lastw) {
+            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="566" fill="url(#background)"/><text id="title" fill="rgb(0,0,0)" x="50.0000%" y="24.00">Flame Graph</text><text id="details" fill="rgb(0,0,0)" x="10" y="549.00"> </text><text id="unzoom" class="hide" fill="rgb(0,0,0)" x="10" y="24.00">Reset Zoom</text><text id="search" fill="rgb(0,0,0)" x="1190" y="24.00">Search</text><text id="matched" fill="rgb(0,0,0)" x="1190" y="549.00"> </text><svg id="frames" x="10" width="1180" total_samples="29810"><g><title>[ld-linux-x86-64.so.2] (7 samples, 0.02%)</title><rect x="0.0000%" y="469" width="0.0235%" height="15" fill="rgb(227,0,7)" fg:x="0" fg:w="7"/><text x="0.2500%" y="479.50"></text></g><g><title>[unknown] (4 samples, 0.01%)</title><rect x="0.0101%" y="453" width="0.0134%" height="15" fill="rgb(217,0,24)" fg:x="3" fg:w="4"/><text x="0.2601%" y="463.50"></text></g><g><title>[ld-linux-x86-64.so.2] (8 samples, 0.03%)</title><rect x="0.0000%" y="485" width="0.0268%" height="15" 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core::ops::a..</text></g><g><title>&lt;f32 as fast_float::float::Float&gt;::from_u64 (41 samples, 0.14%)</title><rect x="19.0272%" y="245" width="0.1375%" height="15" fill="rgb(250,228,42)" fg:x="5672" fg:w="41"/><text x="19.2772%" y="255.50"></text></g><g><title>&lt;f32 as fast_float::float::Float&gt;::pow10_fast_path (121 samples, 0.41%)</title><rect x="19.1647%" y="245" width="0.4059%" height="15" fill="rgb(240,193,28)" fg:x="5713" fg:w="121"/><text x="19.4147%" y="255.50"></text></g><g><title>fast_float::number::Number::try_fast_path (4,816 samples, 16.16%)</title><rect x="4.0892%" y="261" width="16.1557%" height="15" fill="rgb(216,20,37)" fg:x="1219" fg:w="4816"/><text x="4.3392%" y="271.50">fast_float::number::Numbe..</text></g><g><title>fast_float::number::Number::is_fast_path (201 samples, 0.67%)</title><rect x="19.5706%" y="245" width="0.6743%" height="15" fill="rgb(206,188,39)" fg:x="5834" fg:w="201"/><text x="19.8206%" 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x="23.7974%" y="245" width="0.1946%" height="15" fill="rgb(221,200,47)" fg:x="7094" fg:w="58"/><text x="24.0474%" y="255.50"></text></g><g><title>core::num::&lt;impl isize&gt;::wrapping_sub (58 samples, 0.19%)</title><rect x="23.7974%" y="229" width="0.1946%" height="15" fill="rgb(226,26,5)" fg:x="7094" fg:w="58"/><text x="24.0474%" y="239.50"></text></g><g><title>fast_float::number::try_parse_8digits_le (319 samples, 1.07%)</title><rect x="23.9919%" y="245" width="1.0701%" height="15" fill="rgb(249,33,26)" fg:x="7152" fg:w="319"/><text x="24.2419%" y="255.50"></text></g><g><title>fast_float::common::AsciiStr::try_read_u64 (319 samples, 1.07%)</title><rect x="23.9919%" y="229" width="1.0701%" height="15" fill="rgb(235,183,28)" fg:x="7152" fg:w="319"/><text x="24.2419%" y="239.50"></text></g><g><title>fast_float::common::AsciiStr::check_len (252 samples, 0.85%)</title><rect x="24.2167%" y="213" width="0.8454%" height="15" fill="rgb(221,5,38)" fg:x="7219" fg:w="252"/><text x="24.4667%" y="223.50"></text></g><g><title>core::ptr::const_ptr::&lt;impl *const T&gt;::add (163 samples, 0.55%)</title><rect x="24.5153%" y="197" width="0.5468%" height="15" fill="rgb(247,18,42)" fg:x="7308" fg:w="163"/><text x="24.7653%" y="207.50"></text></g><g><title>core::num::&lt;impl u8&gt;::is_ascii_digit (431 samples, 1.45%)</title><rect x="27.0849%" y="213" width="1.4458%" height="15" fill="rgb(241,131,45)" fg:x="8074" fg:w="431"/><text x="27.3349%" y="223.50"></text></g><g><title>fast_float::common::AsciiStr::first (4 samples, 0.01%)</title><rect x="28.5307%" y="213" width="0.0134%" height="15" fill="rgb(249,31,29)" fg:x="8505" fg:w="4"/><text x="28.7807%" y="223.50"></text></g><g><title>fast_float::common::AsciiStr::is_empty (407 samples, 1.37%)</title><rect x="28.5441%" y="213" width="1.3653%" height="15" fill="rgb(225,111,53)" fg:x="8509" fg:w="407"/><text x="28.7941%" y="223.50"></text></g><g><title>fast_float::common::AsciiStr::step (57 samples, 0.19%)</title><rect x="29.9094%" y="213" width="0.1912%" height="15" fill="rgb(238,160,17)" fg:x="8916" fg:w="57"/><text x="30.1594%" y="223.50"></text></g><g><title>fast_float::common::AsciiStr::step_by (57 samples, 0.19%)</title><rect x="29.9094%" y="197" width="0.1912%" height="15" fill="rgb(214,148,48)" fg:x="8916" fg:w="57"/><text x="30.1594%" y="207.50"></text></g><g><title>core::ptr::const_ptr::&lt;impl *const T&gt;::add (57 samples, 0.19%)</title><rect x="29.9094%" y="181" width="0.1912%" height="15" fill="rgb(232,36,49)" fg:x="8916" fg:w="57"/><text x="30.1594%" y="191.50"></text></g><g><title>fast_float::parse (8,159 samples, 27.37%)</title><rect x="3.4049%" y="325" width="27.3700%" height="15" fill="rgb(209,103,24)" fg:x="1015" fg:w="8159"/><text x="3.6549%" y="335.50">fast_float::parse</text></g><g><title>fast_float::FastFloat::parse_float (8,159 samples, 27.37%)</title><rect x="3.4049%" y="309" width="27.3700%" height="15" fill="rgb(229,88,8)" fg:x="1015" fg:w="8159"/><text x="3.6549%" 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x="38.7823%" y="149" width="0.1778%" height="15" fill="rgb(222,207,29)" fg:x="11561" fg:w="53"/><text x="39.0323%" y="159.50"></text></g><g><title>[unknown] (49 samples, 0.16%)</title><rect x="38.7957%" y="133" width="0.1644%" height="15" fill="rgb(206,96,30)" fg:x="11565" fg:w="49"/><text x="39.0457%" y="143.50"></text></g><g><title>[unknown] (41 samples, 0.14%)</title><rect x="38.8225%" y="117" width="0.1375%" height="15" fill="rgb(218,138,4)" fg:x="11573" fg:w="41"/><text x="39.0725%" y="127.50"></text></g><g><title>[unknown] (24 samples, 0.08%)</title><rect x="38.8796%" y="101" width="0.0805%" height="15" fill="rgb(250,191,14)" fg:x="11590" fg:w="24"/><text x="39.1296%" y="111.50"></text></g><g><title>[unknown] (12 samples, 0.04%)</title><rect x="38.9198%" y="85" width="0.0403%" height="15" fill="rgb(239,60,40)" fg:x="11602" fg:w="12"/><text x="39.1698%" y="95.50"></text></g><g><title>[unknown] (10 samples, 0.03%)</title><rect x="38.9265%" y="69" width="0.0335%" height="15" fill="rgb(206,27,48)" fg:x="11604" fg:w="10"/><text x="39.1765%" y="79.50"></text></g><g><title>[unknown] (7 samples, 0.02%)</title><rect x="38.9366%" y="53" width="0.0235%" height="15" fill="rgb(225,35,8)" fg:x="11607" fg:w="7"/><text x="39.1866%" y="63.50"></text></g><g><title>[unknown] (3 samples, 0.01%)</title><rect x="38.9500%" y="37" width="0.0101%" height="15" fill="rgb(250,213,24)" fg:x="11611" fg:w="3"/><text x="39.2000%" y="47.50"></text></g><g><title>memchr::vector::x86sse2::&lt;impl memchr::vector::Vector for core::core_arch::x86::__m128i&gt;::cmpeq (72 samples, 0.24%)</title><rect x="38.9601%" y="165" width="0.2415%" height="15" fill="rgb(247,123,22)" fg:x="11614" fg:w="72"/><text x="39.2101%" y="175.50"></text></g><g><title>core::core_arch::x86::sse2::_mm_cmpeq_epi8 (72 samples, 0.24%)</title><rect x="38.9601%" y="149" width="0.2415%" height="15" fill="rgb(231,138,38)" fg:x="11614" fg:w="72"/><text x="39.2101%" 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y="287.50">memchr::mem..</text></g><g><title>memchr::arch::x86_64::memchr::memchr_raw (2,408 samples, 8.08%)</title><rect x="32.1402%" y="261" width="8.0778%" height="15" fill="rgb(244,35,45)" fg:x="9581" fg:w="2408"/><text x="32.3902%" y="271.50">memchr::arc..</text></g><g><title>memchr::arch::x86_64::memchr::memchr_raw::find_sse2 (1,961 samples, 6.58%)</title><rect x="33.6397%" y="245" width="6.5783%" height="15" fill="rgb(251,115,12)" fg:x="10028" fg:w="1961"/><text x="33.8897%" y="255.50">memchr::a..</text></g><g><title>memchr::arch::x86_64::sse2::memchr::One::find_raw (1,767 samples, 5.93%)</title><rect x="34.2905%" y="229" width="5.9275%" height="15" fill="rgb(240,54,50)" fg:x="10222" fg:w="1767"/><text x="34.5405%" y="239.50">memchr::..</text></g><g><title>memchr::arch::x86_64::sse2::memchr::One::find_raw_impl (1,262 samples, 4.23%)</title><rect x="35.9846%" y="213" width="4.2335%" height="15" fill="rgb(233,84,52)" fg:x="10727" fg:w="1262"/><text x="36.2346%" y="223.50">memch..</text></g><g><title>memchr::arch::generic::memchr::One&lt;V&gt;::find_raw (1,262 samples, 4.23%)</title><rect x="35.9846%" y="197" width="4.2335%" height="15" fill="rgb(207,117,47)" fg:x="10727" fg:w="1262"/><text x="36.2346%" y="207.50">memch..</text></g><g><title>memchr::vector::x86sse2::&lt;impl memchr::vector::Vector for core::core_arch::x86::__m128i&gt;::or (9 samples, 0.03%)</title><rect x="40.1879%" y="181" width="0.0302%" height="15" fill="rgb(249,43,39)" fg:x="11980" fg:w="9"/><text x="40.4379%" y="191.50"></text></g><g><title>core::core_arch::x86::sse2::_mm_or_si128 (9 samples, 0.03%)</title><rect x="40.1879%" y="165" width="0.0302%" height="15" fill="rgb(209,38,44)" fg:x="11980" fg:w="9"/><text x="40.4379%" y="175.50"></text></g><g><title>std::collections::hash::map::Entry&lt;K,V&gt;::and_modify (559 samples, 1.88%)</title><rect x="40.2180%" y="325" width="1.8752%" height="15" fill="rgb(236,212,23)" fg:x="11989" fg:w="559"/><text x="40.4680%" y="335.50">s..</text></g><g><title>rust_1brc::calculate_station_values::_{{closure}} (559 samples, 1.88%)</title><rect x="40.2180%" y="309" width="1.8752%" height="15" fill="rgb(242,79,21)" fg:x="11989" fg:w="559"/><text x="40.4680%" y="319.50">r..</text></g><g><title>core::hash::Hasher::write_length_prefix (11 samples, 0.04%)</title><rect x="45.5652%" y="213" width="0.0369%" height="15" fill="rgb(211,96,35)" fg:x="13583" fg:w="11"/><text x="45.8152%" y="223.50"></text></g><g><title>&lt;rustc_hash::FxHasher as core::hash::Hasher&gt;::write_usize (11 samples, 0.04%)</title><rect x="45.5652%" y="197" width="0.0369%" height="15" fill="rgb(253,215,40)" fg:x="13583" fg:w="11"/><text x="45.8152%" y="207.50"></text></g><g><title>rustc_hash::FxHasher::add_to_hash (11 samples, 0.04%)</title><rect x="45.5652%" y="181" width="0.0369%" height="15" fill="rgb(211,81,21)" fg:x="13583" fg:w="11"/><text x="45.8152%" y="191.50"></text></g><g><title>core::num::&lt;impl usize&gt;::wrapping_mul (11 samples, 0.04%)</title><rect x="45.5652%" y="165" width="0.0369%" height="15" fill="rgb(208,190,38)" fg:x="13583" fg:w="11"/><text x="45.8152%" y="175.50"></text></g><g><title>core::slice::index::&lt;impl core::ops::index::Index&lt;I&gt; for [T]&gt;::index (275 samples, 0.92%)</title><rect x="48.1919%" y="181" width="0.9225%" height="15" fill="rgb(235,213,38)" fg:x="14366" fg:w="275"/><text x="48.4419%" y="191.50"></text></g><g><title>&lt;core::ops::range::RangeFrom&lt;usize&gt; as core::slice::index::SliceIndex&lt;[T]&gt;&gt;::index (275 samples, 0.92%)</title><rect x="48.1919%" y="165" width="0.9225%" height="15" fill="rgb(237,122,38)" fg:x="14366" fg:w="275"/><text x="48.4419%" y="175.50"></text></g><g><title>&lt;core::ops::range::RangeFrom&lt;usize&gt; as core::slice::index::SliceIndex&lt;[T]&gt;&gt;::get_unchecked (275 samples, 0.92%)</title><rect x="48.1919%" y="149" width="0.9225%" height="15" fill="rgb(244,218,35)" fg:x="14366" fg:w="275"/><text x="48.4419%" y="159.50"></text></g><g><title>&lt;core::ops::range::Range&lt;usize&gt; as core::slice::index::SliceIndex&lt;[T]&gt;&gt;::get_unchecked (275 samples, 0.92%)</title><rect x="48.1919%" y="133" width="0.9225%" height="15" fill="rgb(240,68,47)" fg:x="14366" fg:w="275"/><text x="48.4419%" y="143.50"></text></g><g><title>core::ptr::const_ptr::&lt;impl *const T&gt;::add (63 samples, 0.21%)</title><rect x="48.9031%" y="117" width="0.2113%" height="15" fill="rgb(210,16,53)" fg:x="14578" fg:w="63"/><text x="49.1531%" y="127.50"></text></g><g><title>&lt;usize as core::ops::bit::BitXor&gt;::bitxor (55 samples, 0.18%)</title><rect x="49.1144%" y="165" width="0.1845%" height="15" fill="rgb(235,124,12)" fg:x="14641" fg:w="55"/><text x="49.3644%" y="175.50"></text></g><g><title>core::num::&lt;impl usize&gt;::rotate_left (1,220 samples, 4.09%)</title><rect x="49.2989%" y="165" width="4.0926%" height="15" fill="rgb(224,169,11)" fg:x="14696" fg:w="1220"/><text x="49.5489%" y="175.50">core..</text></g><g><title>&lt;rustc_hash::FxHasher as core::hash::Hasher&gt;::write (2,458 samples, 8.25%)</title><rect x="45.6021%" y="197" width="8.2456%" height="15" fill="rgb(250,166,2)" fg:x="13594" fg:w="2458"/><text x="45.8521%" y="207.50">&lt;rustc_hash..</text></g><g><title>rustc_hash::FxHasher::add_to_hash (1,411 samples, 4.73%)</title><rect x="49.1144%" y="181" width="4.7333%" height="15" fill="rgb(242,216,29)" fg:x="14641" fg:w="1411"/><text x="49.3644%" y="191.50">rustc_..</text></g><g><title>core::num::&lt;impl usize&gt;::wrapping_mul (136 samples, 0.46%)</title><rect x="53.3915%" y="165" width="0.4562%" height="15" fill="rgb(230,116,27)" fg:x="15916" fg:w="136"/><text x="53.6415%" y="175.50"></text></g><g><title>hashbrown::map::make_hash (2,527 samples, 8.48%)</title><rect x="45.5652%" y="293" width="8.4770%" height="15" fill="rgb(228,99,48)" fg:x="13583" fg:w="2527"/><text x="45.8152%" y="303.50">hashbrown::m..</text></g><g><title>core::hash::BuildHasher::hash_one (2,527 samples, 8.48%)</title><rect x="45.5652%" y="277" width="8.4770%" height="15" fill="rgb(253,11,6)" fg:x="13583" fg:w="2527"/><text x="45.8152%" y="287.50">core::hash::..</text></g><g><title>core::hash::impls::&lt;impl core::hash::Hash for &amp;T&gt;::hash (2,527 samples, 8.48%)</title><rect x="45.5652%" y="261" width="8.4770%" height="15" fill="rgb(247,143,39)" fg:x="13583" fg:w="2527"/><text x="45.8152%" y="271.50">core::hash::..</text></g><g><title>core::hash::impls::&lt;impl core::hash::Hash for &amp;T&gt;::hash (2,527 samples, 8.48%)</title><rect x="45.5652%" y="245" width="8.4770%" height="15" fill="rgb(236,97,10)" fg:x="13583" fg:w="2527"/><text x="45.8152%" y="255.50">core::hash::..</text></g><g><title>core::hash::impls::&lt;impl core::hash::Hash for [T]&gt;::hash (2,527 samples, 8.48%)</title><rect x="45.5652%" y="229" width="8.4770%" height="15" fill="rgb(233,208,19)" fg:x="13583" fg:w="2527"/><text x="45.8152%" y="239.50">core::hash::..</text></g><g><title>core::hash::impls::&lt;impl core::hash::Hash for u8&gt;::hash_slice (2,516 samples, 8.44%)</title><rect x="45.6021%" y="213" width="8.4401%" height="15" fill="rgb(216,164,2)" fg:x="13594" fg:w="2516"/><text x="45.8521%" y="223.50">core::hash::..</text></g><g><title>hashbrown::rustc_entry::&lt;impl hashbrown::map::HashMap&lt;K,V,S,A&gt;&gt;::rustc_entry (58 samples, 0.19%)</title><rect x="53.8477%" y="197" width="0.1946%" height="15" fill="rgb(220,129,5)" fg:x="16052" fg:w="58"/><text x="54.0977%" y="207.50"></text></g><g><title>&lt;hashbrown::raw::bitmask::BitMaskIter as core::iter::traits::iterator::Iterator&gt;::next (1,185 samples, 3.98%)</title><rect x="57.7960%" y="261" width="3.9752%" height="15" fill="rgb(242,17,10)" fg:x="17229" fg:w="1185"/><text x="58.0460%" y="271.50">&lt;has..</text></g><g><title>hashbrown::raw::bitmask::BitMask::lowest_set_bit (1,185 samples, 3.98%)</title><rect x="57.7960%" y="245" width="3.9752%" height="15" fill="rgb(242,107,0)" fg:x="17229" fg:w="1185"/><text x="58.0460%" y="255.50">hash..</text></g><g><title>core::num::nonzero::NonZero&lt;u16&gt;::new (978 samples, 3.28%)</title><rect x="58.4904%" y="229" width="3.2808%" height="15" fill="rgb(251,28,31)" fg:x="17436" fg:w="978"/><text x="58.7404%" y="239.50">cor..</text></g><g><title>hashbrown::raw::RawTable&lt;T,A&gt;::bucket (474 samples, 1.59%)</title><rect x="61.7712%" y="245" width="1.5901%" height="15" fill="rgb(233,223,10)" fg:x="18414" fg:w="474"/><text x="62.0212%" y="255.50"></text></g><g><title>hashbrown::raw::Bucket&lt;T&gt;::from_base_index (474 samples, 1.59%)</title><rect x="61.7712%" y="229" width="1.5901%" height="15" fill="rgb(215,21,27)" fg:x="18414" fg:w="474"/><text x="62.0212%" y="239.50"></text></g><g><title>core::ptr::mut_ptr::&lt;impl *mut T&gt;::sub (474 samples, 1.59%)</title><rect x="61.7712%" y="213" width="1.5901%" height="15" fill="rgb(232,23,21)" fg:x="18414" fg:w="474"/><text x="62.0212%" y="223.50"></text></g><g><title>core::ptr::mut_ptr::&lt;impl *mut T&gt;::offset (474 samples, 1.59%)</title><rect x="61.7712%" y="197" width="1.5901%" height="15" fill="rgb(244,5,23)" fg:x="18414" fg:w="474"/><text x="62.0212%" y="207.50"></text></g><g><title>&lt;[A] as core::slice::cmp::SlicePartialEq&lt;B&gt;&gt;::equal (6,994 samples, 23.46%)</title><rect x="63.3613%" y="197" width="23.4619%" height="15" fill="rgb(226,81,46)" fg:x="18888" fg:w="6994"/><text x="63.6113%" y="207.50">&lt;[A] as core::slice::cmp::SlicePartia..</text></g><g><title>[libc.so.6] (4,850 samples, 16.27%)</title><rect x="70.5535%" y="181" width="16.2697%" height="15" fill="rgb(247,70,30)" fg:x="21032" fg:w="4850"/><text x="70.8035%" y="191.50">[libc.so.6]</text></g><g><title>hashbrown::raw::RawTable&lt;T,A&gt;::find::_{{closure}} (7,492 samples, 25.13%)</title><rect x="61.7712%" y="261" width="25.1325%" height="15" fill="rgb(212,68,19)" fg:x="18414" fg:w="7492"/><text x="62.0212%" y="271.50">hashbrown::raw::RawTable&lt;T,A&gt;::find::_{{..</text></g><g><title>hashbrown::rustc_entry::_&lt;impl hashbrown::map::HashMap&lt;K,V,S,A&gt;&gt;::rustc_entry::_{{closure}} (7,018 samples, 23.54%)</title><rect x="63.3613%" y="245" width="23.5424%" height="15" fill="rgb(240,187,13)" fg:x="18888" fg:w="7018"/><text x="63.6113%" y="255.50">hashbrown::rustc_entry::_&lt;impl hashbr..</text></g><g><title>core::cmp::impls::&lt;impl core::cmp::PartialEq&lt;&amp;B&gt; for &amp;A&gt;::eq (7,018 samples, 23.54%)</title><rect x="63.3613%" y="229" width="23.5424%" height="15" fill="rgb(223,113,26)" fg:x="18888" fg:w="7018"/><text x="63.6113%" y="239.50">core::cmp::impls::&lt;impl core::cmp::Pa..</text></g><g><title>core::slice::cmp::&lt;impl core::cmp::PartialEq&lt;[B]&gt; for [A]&gt;::eq (7,018 samples, 23.54%)</title><rect x="63.3613%" y="213" width="23.5424%" height="15" fill="rgb(206,192,2)" fg:x="18888" fg:w="7018"/><text x="63.6113%" y="223.50">core::slice::cmp::&lt;impl core::cmp::Pa..</text></g><g><title>hashbrown::rustc_entry::&lt;impl hashbrown::map::HashMap&lt;K,V,S,A&gt;&gt;::rustc_entry (24 samples, 0.08%)</title><rect x="86.8232%" y="197" width="0.0805%" height="15" fill="rgb(241,108,4)" fg:x="25882" fg:w="24"/><text x="87.0732%" y="207.50"></text></g><g><title>hashbrown::raw::h2 (1,217 samples, 4.08%)</title><rect x="86.9071%" y="261" width="4.0825%" height="15" fill="rgb(247,173,49)" fg:x="25907" fg:w="1217"/><text x="87.1571%" y="271.50">hash..</text></g><g><title>hashbrown::raw::sse2::Group::load (331 samples, 1.11%)</title><rect x="90.9896%" y="261" width="1.1104%" height="15" fill="rgb(224,114,35)" fg:x="27124" fg:w="331"/><text x="91.2396%" y="271.50"></text></g><g><title>core::core_arch::x86::sse2::_mm_loadu_si128 (331 samples, 1.11%)</title><rect x="90.9896%" y="245" width="1.1104%" height="15" fill="rgb(245,159,27)" fg:x="27124" fg:w="331"/><text x="91.2396%" y="255.50"></text></g><g><title>hashbrown::rustc_entry::&lt;impl hashbrown::map::HashMap&lt;K,V,S,A&gt;&gt;::rustc_entry (329 samples, 1.10%)</title><rect x="90.9963%" y="229" width="1.1037%" height="15" fill="rgb(245,172,44)" fg:x="27126" fg:w="329"/><text x="91.2463%" y="239.50"></text></g><g><title>hashbrown::raw::sse2::Group::match_byte (1,938 samples, 6.50%)</title><rect x="92.1000%" y="261" width="6.5012%" height="15" fill="rgb(236,23,11)" fg:x="27455" fg:w="1938"/><text x="92.3500%" y="271.50">hashbrown..</text></g><g><title>core::core_arch::x86::sse2::_mm_movemask_epi8 (1,938 samples, 6.50%)</title><rect x="92.1000%" y="245" width="6.5012%" height="15" fill="rgb(205,117,38)" fg:x="27455" fg:w="1938"/><text x="92.3500%" y="255.50">core::cor..</text></g><g><title>hashbrown::raw::sse2::Group::match_empty (283 samples, 0.95%)</title><rect x="98.6011%" y="261" width="0.9493%" height="15" fill="rgb(237,72,25)" fg:x="29393" fg:w="283"/><text x="98.8511%" y="271.50"></text></g><g><title>hashbrown::raw::sse2::Group::match_byte (283 samples, 0.95%)</title><rect x="98.6011%" y="245" width="0.9493%" height="15" fill="rgb(244,70,9)" fg:x="29393" fg:w="283"/><text x="98.8511%" y="255.50"></text></g><g><title>core::core_arch::x86::sse2::_mm_movemask_epi8 (283 samples, 0.95%)</title><rect x="98.6011%" y="229" width="0.9493%" height="15" fill="rgb(217,125,39)" fg:x="29393" fg:w="283"/><text x="98.8511%" y="239.50"></text></g><g><title>hashbrown::raw::RawTableInner::find_inner (12,826 samples, 43.03%)</title><rect x="56.6320%" y="277" width="43.0258%" height="15" fill="rgb(235,36,10)" fg:x="16882" fg:w="12826"/><text x="56.8820%" y="287.50">hashbrown::raw::RawTableInner::find_inner</text></g><g><title>hashbrown::rustc_entry::&lt;impl hashbrown::map::HashMap&lt;K,V,S,A&gt;&gt;::rustc_entry (32 samples, 0.11%)</title><rect x="99.5505%" y="261" width="0.1073%" height="15" fill="rgb(251,123,47)" fg:x="29676" fg:w="32"/><text x="99.8005%" y="271.50"></text></g><g><title>hashbrown::rustc_entry::&lt;impl hashbrown::map::HashMap&lt;K,V,S,A&gt;&gt;::rustc_entry (16,926 samples, 56.78%)</title><rect x="42.8950%" y="309" width="56.7796%" height="15" fill="rgb(221,13,13)" fg:x="12787" fg:w="16926"/><text x="43.1450%" y="319.50">hashbrown::rustc_entry::&lt;impl hashbrown::map::HashMap&lt;K,V,S,A&gt;&gt;::rustc_entry</text></g><g><title>hashbrown::raw::RawTable&lt;T,A&gt;::find (13,603 samples, 45.63%)</title><rect x="54.0423%" y="293" width="45.6323%" height="15" fill="rgb(238,131,9)" fg:x="16110" fg:w="13603"/><text x="54.2923%" y="303.50">hashbrown::raw::RawTable&lt;T,A&gt;::find</text></g><g><title>hashbrown::rustc_entry::&lt;impl hashbrown::map::HashMap&lt;K,V,S,A&gt;&gt;::rustc_entry (5 samples, 0.02%)</title><rect x="99.6578%" y="277" width="0.0168%" height="15" fill="rgb(211,50,8)" fg:x="29708" fg:w="5"/><text x="99.9078%" y="287.50"></text></g><g><title>all (29,810 samples, 100%)</title><rect x="0.0000%" y="517" width="100.0000%" height="15" fill="rgb(245,182,24)" fg:x="0" fg:w="29810"/><text x="0.2500%" y="527.50"></text></g><g><title>rust-1brc (29,810 samples, 100.00%)</title><rect x="0.0000%" y="501" width="100.0000%" height="15" fill="rgb(242,14,37)" fg:x="0" fg:w="29810"/><text x="0.2500%" y="511.50">rust-1brc</text></g><g><title>_start (29,802 samples, 99.97%)</title><rect x="0.0268%" y="485" width="99.9732%" height="15" fill="rgb(246,228,12)" fg:x="8" fg:w="29802"/><text x="0.2768%" y="495.50">_start</text></g><g><title>__libc_start_main (29,802 samples, 99.97%)</title><rect x="0.0268%" y="469" width="99.9732%" height="15" fill="rgb(213,55,15)" fg:x="8" fg:w="29802"/><text x="0.2768%" y="479.50">__libc_start_main</text></g><g><title>[libc.so.6] (29,802 samples, 99.97%)</title><rect x="0.0268%" y="453" width="99.9732%" height="15" fill="rgb(209,9,3)" fg:x="8" fg:w="29802"/><text x="0.2768%" y="463.50">[libc.so.6]</text></g><g><title>main (29,802 samples, 99.97%)</title><rect x="0.0268%" y="437" width="99.9732%" height="15" fill="rgb(230,59,30)" fg:x="8" fg:w="29802"/><text x="0.2768%" y="447.50">main</text></g><g><title>std::rt::lang_start_internal (29,802 samples, 99.97%)</title><rect x="0.0268%" y="421" width="99.9732%" height="15" fill="rgb(209,121,21)" fg:x="8" fg:w="29802"/><text x="0.2768%" y="431.50">std::rt::lang_start_internal</text></g><g><title>std::rt::lang_start::_{{closure}} (29,802 samples, 99.97%)</title><rect x="0.0268%" y="405" width="99.9732%" height="15" fill="rgb(220,109,13)" fg:x="8" fg:w="29802"/><text x="0.2768%" y="415.50">std::rt::lang_start::_{{closure}}</text></g><g><title>std::sys_common::backtrace::__rust_begin_short_backtrace (29,802 samples, 99.97%)</title><rect x="0.0268%" y="389" width="99.9732%" height="15" fill="rgb(232,18,1)" fg:x="8" fg:w="29802"/><text x="0.2768%" y="399.50">std::sys_common::backtrace::__rust_begin_short_backtrace</text></g><g><title>core::ops::function::FnOnce::call_once (29,802 samples, 99.97%)</title><rect x="0.0268%" y="373" width="99.9732%" height="15" fill="rgb(215,41,42)" fg:x="8" fg:w="29802"/><text x="0.2768%" y="383.50">core::ops::function::FnOnce::call_once</text></g><g><title>rust_1brc::main (29,802 samples, 99.97%)</title><rect x="0.0268%" y="357" width="99.9732%" height="15" fill="rgb(224,123,36)" fg:x="8" fg:w="29802"/><text x="0.2768%" y="367.50">rust_1brc::main</text></g><g><title>rust_1brc::calculate_station_values (29,802 samples, 99.97%)</title><rect x="0.0268%" y="341" width="99.9732%" height="15" fill="rgb(240,125,3)" fg:x="8" fg:w="29802"/><text x="0.2768%" y="351.50">rust_1brc::calculate_station_values</text></g><g><title>std::collections::hash::map::HashMap&lt;K,V,S&gt;::entry (17,262 samples, 57.91%)</title><rect x="42.0933%" y="325" width="57.9067%" height="15" fill="rgb(205,98,50)" fg:x="12548" fg:w="17262"/><text x="42.3433%" y="335.50">std::collections::hash::map::HashMap&lt;K,V,S&gt;::entry</text></g><g><title>std::collections::hash::map::map_entry (97 samples, 0.33%)</title><rect x="99.6746%" y="309" width="0.3254%" height="15" fill="rgb(205,185,37)" fg:x="29713" fg:w="97"/><text x="99.9246%" y="319.50"></text></g></svg></svg>
\ No newline at end of file
diff --git a/src/main.rs b/src/main.rs
index 51cfa99..729b5d3 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -5,6 +5,7 @@ use std::time::Instant;
 use fast_float;
 use rustc_hash::FxHashMap;
 use memmap2::Mmap;
+use memchr::memchr;
 
 #[derive(Parser, Debug)]
 #[command(
@@ -25,44 +26,46 @@ struct StationValues {
     count: u32,
 }
 
-fn read_line(data: &[u8]) -> (&[u8], f32) {
-    let mut parts = data.rsplit(|&c| c == b';');
-    let value_str = parts.next().expect("Failed to parse value string");
-    let value = fast_float::parse(value_str).expect("Failed to parse value");
-    let station_name = parts.next().expect("Failed to parse station name");
-    (station_name, value)
-}
-
 // Calculate the station values
 fn calculate_station_values(data:&[u8]) -> FxHashMap<&[u8], StationValues> {
     let mut result: FxHashMap<&[u8], StationValues> = FxHashMap::default();
-    let lines = data.split(|&c| c == b'\n');
-    for line in lines {
-        if line.is_empty() {
-            continue;
-        }
+    let  mut buffer = data;
+    loop {
+        match memchr(b';', &buffer) {
+            None => {
+                break;
+            }
+            Some(comma_seperator) => {
+                let end = memchr(b'\n', &buffer[comma_seperator..]).unwrap();
+                let name = &buffer[..comma_seperator];
+                let value = &buffer[comma_seperator+1..comma_seperator+end];
+                let value = fast_float::parse(value).expect("Failed to parse value");
+
+                result
+                    .entry(name)
+                    .and_modify(|e| {
+                        if value < e.min {
+                            e.min = value;
+                        }
+                        if value > e.max {
+                            e.max = value;
+                        }
+                        e.mean = e.mean + value;
+                        e.count += 1;
+                    })
+                    .or_insert(StationValues {
+                        min: value,
+                        max: value,
+                        mean: value,
+                        count: 1,
+                    });
+                buffer = &buffer[comma_seperator+end+1..];
+            }
 
-        let (station_name, value) = read_line(line);
-        result
-            .entry(station_name)
-            .and_modify(|e| {
-                if value < e.min {
-                    e.min = value;
-                }
-                if value > e.max {
-                    e.max = value;
-                }
-                e.mean = e.mean + value;
-                e.count += 1;
-            })
-            .or_insert(StationValues {
-                min: value,
-                max: value,
-                mean: value,
-                count: 1,
-            });
+        }
     }
 
+
     // Calculate the mean for all entries and round off to 1 decimal place
     for (_, station_values) in result.iter_mut() {
         station_values.mean = round_off(station_values.mean / station_values.count as f32);