viz: create layout once (#11643)

* start

* work

* works

* diff cleanup
This commit is contained in:
qazal
2025-08-13 14:24:58 +08:00
committed by GitHub
parent 3fb79bb43a
commit 8140bf9778

View File

@@ -121,6 +121,19 @@ const colorScheme = {TINY:["#1b5745", "#354f52", "#354f52", "#1d2e62", "#63b0cd"
CATEGORICAL:["#ff8080", "#F4A261", "#C8F9D4", "#8D99AE", "#F4A261", "#ffffa2", "#ffffc0", "#87CEEB"],}
const cycleColors = (lst, i) => lst[i%lst.length];
const createPolygons = (source, area) => {
const shapes = [];
const yscale = d3.scaleLinear().domain([0, source.peak]).range([area, 0]);
for (const [i,e] of source.shapes.entries()) {
const x = e.x.map((i,_) => (source.timestamps[i] ?? data.et)-data.st);
const y0 = e.y.map(yscale);
const y1 = e.y.map(y => yscale(y+e.arg.nbytes));
const arg = { tooltipText:`${e.arg.dtype} len:${formatUnit(e.arg.sz)}\n${formatUnit(e.arg.nbytes, "B")}` };
shapes.push({ x, y0, y1, arg, fillColor:cycleColors(colorScheme.BUFFER, i) });
}
return shapes;
}
const drawLine = (ctx, x, y) => {
ctx.beginPath();
ctx.moveTo(x[0], y[0]);
@@ -129,16 +142,18 @@ const drawLine = (ctx, x, y) => {
ctx.stroke();
}
var profileRet, focusedDevice, canvasZoom, zoomLevel = d3.zoomIdentity;
var data, focusedDevice, canvasZoom, zoomLevel = d3.zoomIdentity;
async function renderProfiler() {
displayGraph("profiler");
d3.select(".metadata").html("");
// layout once!
if (data != null) return;
const profiler = d3.select(".profiler").html("");
const deviceList = profiler.append("div").attr("id", "device-list").node();
const canvas = profiler.append("canvas").attr("id", "timeline").node();
// NOTE: scrolling via mouse can only zoom the graph
canvas.addEventListener("wheel", e => (e.stopPropagation(), e.preventDefault()), { passive:false });
if (profileRet == null) profileRet = await (await fetch("/get_profile")).json()
const profileRet = await (await fetch("/get_profile")).json()
const { layout, st, et } = profileRet;
// place devices on the y axis and set vertical positions
const [tickSize, padding] = [10, 8];
@@ -147,7 +162,7 @@ async function renderProfiler() {
const canvasTop = rect(canvas).top;
// color by key (name/category/device)
const colorMap = new Map();
const data = {shapes:[], axes:{}};
data = {tracks:new Map(), axes:{}, st, et};
const areaScale = d3.scaleLinear().domain([0, Object.entries(layout).reduce((peak, [_,d]) => Math.max(peak, d.mem.peak), 0)]).range([4,maxArea=100]);
for (const [k, { timeline, mem }] of Object.entries(layout)) {
if (timeline.shapes.length === 0 && mem.shapes.length == 0) continue;
@@ -155,14 +170,30 @@ async function renderProfiler() {
div.innerText = k;
div.style.padding = `${padding}px`;
div.onclick = () => { // TODO: make this feature more visible
focusedDevice = k === focusedDevice ? null : k;
const prevScroll = profiler.node().scrollTop;
renderProfiler();
let newOffset = null;
for (const [track, v] of data.tracks) {
if (track === `${k} memory`) {
// expand the y axis or reset to default size
const pick = [areaScale(mem.peak), maxArea*4];
const expand = k !== focusedDevice;
const [newArea, prevArea] = expand ? pick.reverse() : pick;
focusedDevice = expand ? k : null;
data.axes.y = expand ? { domain:[0, mem.peak], range:[v.offsetY+newArea, v.offsetY], fmt:"B" } : null;
// either way update all offsets
v.shapes = createPolygons(mem, newArea);
newOffset = newArea-prevArea;
v.div.style.height = rect(v.div).height+newOffset+"px";
} else if (newOffset != null) v.offsetY += newOffset;
}
d3.select(canvas).call(canvasZoom.transform, zoomLevel);
if (prevScroll) profiler.node().scrollTop = prevScroll;
}
const { y:baseY, height:baseHeight } = rect(div);
const levelHeight = baseHeight-padding;
const offsetY = baseY-canvasTop+padding/2;
const shapes = [];
data.tracks.set(k, { shapes, offsetY });
let colorKey, ref;
for (const e of timeline.shapes) {
if (e.depth === 0) colorKey = e.cat ?? e.name;
@@ -177,27 +208,15 @@ async function renderProfiler() {
}
const arg = { tooltipText:formatTime(e.dur)+(e.info != null ? "\n"+e.info : ""), ...ref };
// offset y by depth
data.shapes.push({x:e.st-st, y:offsetY+levelHeight*e.depth, width:e.dur, height:levelHeight, arg, label, fillColor });
shapes.push({x:e.st-st, y:levelHeight*e.depth, width:e.dur, height:levelHeight, arg, label, fillColor });
}
// position shapes on the canvas and scale to fit fixed area
let area = mem.shapes.length === 0 ? 0 : areaScale(mem.peak);
if (area === 0) div.style.pointerEvents = "none";
else {
const startY = offsetY+(levelHeight*timeline.maxDepth)+padding/2;
data.tracks.set(`${k} memory`, { shapes:createPolygons(mem, area), offsetY:startY, div });
div.style.cursor = "pointer";
if (k === focusedDevice) {
// expand memory graph for the focused device
area = maxArea*4;
data.axes.y = { domain:[0, mem.peak], range:[startY+area, startY], fmt:"B" };
}
const yscale = d3.scaleLinear().domain([0, mem.peak]).range([startY+area, startY]);
for (const [i,e] of mem.shapes.entries()) {
const x = e.x.map((i,_) => (mem.timestamps[i] ?? et)-st);
const y0 = e.y.map(yscale);
const y1 = e.y.map(y => yscale(y+e.arg.nbytes));
const arg = { tooltipText:`${e.arg.dtype} len:${formatUnit(e.arg.sz)}\n${formatUnit(e.arg.nbytes, "B")}` };
data.shapes.push({ x, y0, y1, arg, fillColor:cycleColors(colorScheme.BUFFER, i) });
}
}
// lastly, adjust device rect by number of levels
div.style.height = `${Math.max(levelHeight*timeline.maxDepth, baseHeight)+area+padding}px`;
@@ -221,49 +240,51 @@ async function renderProfiler() {
yscale = d3.scaleLinear().domain(data.axes.y.domain).range(data.axes.y.range);
}
// draw shapes
for (const e of data.shapes) {
const [start, end] = e.width != null ? [e.x, e.x+e.width] : [e.x[0], e.x[e.x.length-1]];
if (zoomDomain != null && (start>zoomDomain[1]|| end<zoomDomain[0])) continue;
ctx.fillStyle = e.fillColor;
// generic polygon
if (e.width == null) {
const x = e.x.map(xscale);
ctx.beginPath();
ctx.moveTo(x[0], e.y0[0]);
for (let i=1; i<x.length; i++) ctx.lineTo(x[i], e.y0[i]);
for (let i=x.length-1; i>=0; i--) ctx.lineTo(x[i], e.y1[i]);
ctx.closePath();
ctx.fill();
// NOTE: y coordinates are in reverse order
for (let i = 0; i < x.length - 1; i++) {
let tooltipText = e.arg.tooltipText;
if (yscale != null && ((yaxisVal=yscale.invert(e.y1[i]))>0)) {
tooltipText += `\nTotal: ${formatUnit(yaxisVal, data.axes.y.fmt)}`;
for (const [_, { offsetY, shapes }] of data.tracks) {
for (const e of shapes) {
const [start, end] = e.width != null ? [e.x, e.x+e.width] : [e.x[0], e.x[e.x.length-1]];
if (zoomDomain != null && (start>zoomDomain[1]|| end<zoomDomain[0])) continue;
ctx.fillStyle = e.fillColor;
// generic polygon
if (e.width == null) {
const x = e.x.map(xscale);
ctx.beginPath();
ctx.moveTo(x[0], offsetY+e.y0[0]);
for (let i=1; i<x.length; i++) ctx.lineTo(x[i], offsetY+e.y0[i]);
for (let i=x.length-1; i>=0; i--) ctx.lineTo(x[i], offsetY+e.y1[i]);
ctx.closePath();
ctx.fill();
// NOTE: y coordinates are in reverse order
for (let i = 0; i < x.length - 1; i++) {
let tooltipText = e.arg.tooltipText;
if (yscale != null && ((yaxisVal=yscale.invert(offsetY+e.y1[i]))>0)) {
tooltipText += `\nTotal: ${formatUnit(yaxisVal, data.axes.y.fmt)}`;
}
rectLst.push({ x0:x[i], x1:x[i+1], y0:offsetY+e.y1[i], y1:offsetY+e.y0[i], arg:{...e.arg, tooltipText} });
}
rectLst.push({ x0:x[i], x1:x[i+1], y0:e.y1[i], y1:e.y0[i], arg:{...e.arg, tooltipText} });
continue;
}
continue;
}
// contiguous rect
const x = xscale(start);
const width = xscale(end)-x;
ctx.fillRect(x, e.y, width, e.height);
rectLst.push({ y0:e.y, y1:e.y+e.height, x0:x, x1:x+width, arg:e.arg });
// add label
if (e.label == null) continue;
ctx.textAlign = "left";
ctx.textBaseline = "middle";
let [labelX, labelWidth] = [x+2, 0];
const labelY = e.y+e.height/2;
for (const [i,l] of e.label.entries()) {
if (labelWidth+l.width+(i===e.label.length-1 ? 0 : ellipsisWidth)+2 > width) {
if (labelWidth !== 0) ctx.fillText("...", labelX, labelY);
break;
// contiguous rect
const x = xscale(start);
const width = xscale(end)-x;
ctx.fillRect(x, offsetY+e.y, width, e.height);
rectLst.push({ y0:offsetY+e.y, y1:offsetY+e.y+e.height, x0:x, x1:x+width, arg:e.arg });
// add label
if (e.label == null) continue;
ctx.textAlign = "left";
ctx.textBaseline = "middle";
let [labelX, labelWidth] = [x+2, 0];
const labelY = offsetY+e.y+e.height/2;
for (const [i,l] of e.label.entries()) {
if (labelWidth+l.width+(i===e.label.length-1 ? 0 : ellipsisWidth)+2 > width) {
if (labelWidth !== 0) ctx.fillText("...", labelX, labelY);
break;
}
ctx.fillStyle = l.color;
ctx.fillText(l.st, labelX, labelY);
labelWidth += l.width;
labelX += l.width;
}
ctx.fillStyle = l.color;
ctx.fillText(l.st, labelX, labelY);
labelWidth += l.width;
labelX += l.width;
}
}
// draw axes