jlfwong/speedscope
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Import from stackprof to convenient in-memory format

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This commit is contained in:
Jamie Wong 2017-11-22 00:00:31 -08:00
commit f82733d0ef
11 changed files with 58516 additions and 0 deletions
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.gitignore vendored Normal file
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node_modules
dist

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index.html Normal file
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>SpeedScope</title>
<style>
html, body, div, span, applet, object, iframe,
h1, h2, h3, h4, h5, h6, p, blockquote, pre,
a, abbr, acronym, address, big, cite, code,
del, dfn, em, img, ins, kbd, q, s, samp,
small, strike, strong, sub, sup, tt, var,
b, u, i, center,
dl, dt, dd, ol, ul, li,
fieldset, form, label, legend,
table, caption, tbody, tfoot, thead, tr, th, td,
article, aside, canvas, details, embed,
figure, figcaption, footer, header, hgroup,
menu, nav, output, ruby, section, summary,
time, mark, audio, video {
margin: 0;
padding: 0;
border: 0;
font-size: 100%;
font: inherit;
vertical-align: baseline;
}
/* HTML5 display-role reset for older browsers */
article, aside, details, figcaption, figure,
footer, header, hgroup, menu, nav, section {
display: block;
}
body {
line-height: 1;
}
ol, ul {
list-style: none;
}
blockquote, q {
quotes: none;
}
blockquote:before, blockquote:after,
q:before, q:after {
content: '';
content: none;
}
table {
border-collapse: collapse;
border-spacing: 0;
}
</style>
</head>
<body>
<div id="root"></div>
<script src="dist/speedscope.js"></script>
</body>
</html>

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index.tsx Normal file
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import {h, render, Component} from 'preact'
import {StyleSheet, css} from 'aphrodite'
import {importFromStackprof} from './stackprof'
class Application extends Component<{}, void> {
onDrop = (ev: DragEvent) => {
const reader = new FileReader
reader.addEventListener('loadend', () => {
console.log(importFromStackprof(reader.result))
})
reader.readAsText(ev.dataTransfer.files.item(0))
ev.preventDefault()
}
onDragOver = (ev: DragEvent) => {
ev.preventDefault()
}
render() {
return <div onDrop={this.onDrop} onDragOver={this.onDragOver} className={css(style.root)}>
</div>
}
}
const style = StyleSheet.create({
root: {
width: '100vw',
height: '100vw'
}
})
render(<Application />, document.body)

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27
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{
"name": "speedscope",
"version": "1.0.0",
"description": "",
"main": "index.js",
"scripts": {
"watch": "rollup -c --watch",
"build": "rollup -c"
},
"author": "",
"license": "MIT",
"devDependencies": {
"@types/aphrodite": "^0.5.6",
"@types/react-dom": "^16.0.3",
"aphrodite": "^1.2.5",
"preact": "^8.2.6",
"react": "^16.1.1",
"react-dom": "^16.1.1",
"rollup": "^0.51.5",
"rollup-plugin-commonjs": "^8.2.6",
"rollup-plugin-node-globals": "^1.1.0",
"rollup-plugin-node-resolve": "^3.0.0",
"rollup-plugin-replace": "^2.0.0",
"rollup-plugin-typescript": "^0.8.1",
"typescript": "^2.6.1"
}
}

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export interface Frame {
key: string | number
// Name of the frame. May be a method name, e.g.
// "ActiveRecord##to_hash"
name: string
// File path of the code corresponding to this
// call stack frame.
file?: string
// Line in the given file where this frame occurs
line?: number
// Column in the file
col?: number
// Color, if specified, to associate with this frame.
// If unspecified, will be generated.
color?: string
}
export class CallTreeNode {
children = new Map<Frame, CallTreeNode>()
private selfTime = 0
private totalTime = 0
getSelfTime() { return this.selfTime }
getTotalTime() { return this.totalTime }
addToTotalTime(delta: number) { this.totalTime += delta }
addToSelfTime(delta: number) { this.selfTime += delta }
constructor(readonly frame: Frame, readonly parent: CallTreeNode | null) {}
}
export interface ProfilingEvent {
// Name of the event, e.g. "SQL Query"
name: string
// Details (e.g. the SQL query)
details?: string
// Bottom of the stack of the call-tree
stack: CallTreeNode
// Elapsed time since the start of the profile,
// in microseconds
start: number
end: number
// Color, if specified to associate with this event.
// If unspecified, will be generated based on the name.
color?: string
}
function getOrInsert<K, V>(map: Map<K, V>, k: K, v: V): V {
if (!map.has(k)) map.set(k, v)
return map.get(k)!
}
export class Profile {
// Duration of the entire profile, in microseconds
duration: number
frames = new Map<string | number, Frame>()
calltreeRoots = new Map<Frame, CallTreeNode>()
// List of references to CallTreeNodes at the top of the
// stack at the time of the sample.
samples: CallTreeNode[] = []
// List of time elapsed since the preceding sample was taken.
// The first elements it the time elapsed since the beginning
// of recording that the sample was taken.
// Times are in microseconds.
// This array should be the same length as the "samples" array.
timeDeltas: number[] = []
// List of events recorded in parallel with the call
// stack samples. Useful for overlaying IO events on
// the same time axis as the sampling profile.
events: ProfilingEvent[] = []
constructor(duration: number) {
this.duration = duration
}
appendSample(stack: Frame[], timeDelta: number) {
let node: CallTreeNode | null = null
let children = this.calltreeRoots
for (let frame of stack) {
frame = getOrInsert(this.frames, frame.key, frame)
node = getOrInsert(children, frame, new CallTreeNode(frame, node))
node.addToTotalTime(timeDelta)
children = node.children
}
if (node) {
node.addToSelfTime(timeDelta)
this.samples.push(node)
this.timeDeltas.push(timeDelta)
}
}
}

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import commonjs from 'rollup-plugin-commonjs';
import nodeResolve from 'rollup-plugin-node-resolve';
import typescript from 'rollup-plugin-typescript';
import replace from 'rollup-plugin-replace';
import nodeGlobals from 'rollup-plugin-node-globals';
const plugins = [
typescript({
typescript: require('typescript')
}),
nodeResolve({
jsnext: true,
main: true
}),
commonjs({
include: 'node_modules/**',
namedExports: {
'aphrodite': ['StyleSheet', 'css'],
'react-dom': ['render'],
'react': ['Component', 'createElement']
},
ignore: [ 'domain' ]
}),
replace({
'process.env.NODE_ENV': JSON.stringify('development')
}),
nodeGlobals()
]
export default [{
input: 'index.tsx',
output: {
file: 'dist/speedscope.js',
format: 'iife'
},
plugins: plugins
}]

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#!/usr/bin/env ruby
# Copyright (c) 2015 Gary Bernhardt
#
# MIT License
#
# Permission is hereby granted, free of charge, to any person obtaining
# a copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:
#
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
require "find"
require "webrick"
require "open3"
require "optparse"
class ServeIt
VERSION = [0, 0, 2]
def self.main
serve_dir, ignored_paths, command = parse_opts
serve_dir = File.expand_path(serve_dir)
Server.new(serve_dir, ignored_paths, command).serve
end
def self.parse_opts
options = {:serve_dir => ".",
:ignored_paths => []}
parser = OptionParser.new do |opts|
opts.banner = "Usage: #{$PROGRAM_NAME} [options] command"
opts.on_tail("-s", "--serve-dir DIR", "Root directory for server") do |dir|
options[:serve_dir] = dir
end
opts.on_tail("-i", "--ignore PATH", "Ignore changes to file or directory") do |path|
options[:ignored_paths] << path
end
opts.on_tail("--version", "Show version") do |dir|
puts ServeIt::VERSION.join('.')
exit
end
end
begin
parser.parse!(ARGV)
rescue OptionParser::InvalidOption => e
$stderr.puts e
$stderr.puts parser
exit 1
end
if ARGV.count == 0
command = nil
elsif ARGV.count == 1
command = ARGV.fetch(0)
else
$stderr.write parser.to_s
exit 1
end
[options.fetch(:serve_dir), options.fetch(:ignored_paths), command]
end
class Server
def initialize(serve_dir, ignored_paths, command)
@mutex = Mutex.new
@serve_dir = serve_dir
@command = command
@rebuilder = Rebuilder.new(@command, ignored_paths) if @command
end
def serve
port = 8000
puts "Starting server at http://localhost:#{port}"
server = WEBrick::HTTPServer.new(:Port => port)
server.mount_proc '/' do |req, res|
relative_path = req.path.sub(/^\//, '')
local_abs_path = File.absolute_path(relative_path, @serve_dir)
if relative_path == "favicon.ico"
respond_to_favicon(res)
else
respond_to_path(res, relative_path, local_abs_path)
end
end
trap 'INT' do server.shutdown end
server.start
end
def respond_to_favicon(res)
res.status = 404
end
def respond_to_path(res, relative_path, local_abs_path)
begin
rebuild_if_needed
rescue Rebuilder::RebuildFailed => e
return respond_to_error(res, e.to_s)
end
if File.directory?(local_abs_path)
respond_to_dir(res, relative_path, local_abs_path)
else
# We're building a file
respond_to_file(res, local_abs_path)
end
end
def respond_to_error(res, message)
res.content_type = "text/html"
res.body = "<pre>" + message + "</pre>"
end
def respond_to_dir(res, rel_path, local_abs_path)
res.content_type = "text/html"
res.body = (
"<p><h3>Listing for /#{rel_path}</h3></p>\n" +
Dir.entries(local_abs_path).select do |child|
child != "."
end.sort.map do |child|
full_child_path_on_server = File.join("/", rel_path, child)
%{<a href="#{full_child_path_on_server}">#{child}</a><br>}
end.join("\n")
)
end
def respond_to_file(res, local_abs_path)
res.body = File.read(local_abs_path)
res.content_type = guess_content_type(local_abs_path)
end
def guess_content_type(path)
extension = File.extname(path).sub(/^\./, '')
WEBrick::HTTPUtils::DefaultMimeTypes.fetch(extension) do
"application/octet-stream"
end
end
def rebuild_if_needed
# Webrick is multi-threaded; guard against concurrent builds
@mutex.synchronize do
if @rebuilder
@rebuilder.rebuild_if_needed
end
end
end
end
class Rebuilder
def initialize(command, ignored_paths)
@command = command
@ignored_paths = ignored_paths
@last_disk_state = nil
end
def rebuild_if_needed
if disk_state != @last_disk_state
stdout_and_stderr, success = rebuild
if !success
message = "Failed to build! Command output:\n\n" + stdout_and_stderr
raise RebuildFailed.new(message)
end
# Get a new post-build disk state so we don't pick up changes made during
# the build.
@last_disk_state = disk_state
[stdout_and_stderr, success]
end
end
def rebuild
puts "Running command: #{@command}"
puts " begin build".rjust(80, "=")
start_time = Time.now
stdout_and_stderr, status = Open3.capture2e(@command)
print stdout_and_stderr
puts (" built in %.03fs" % (Time.now - start_time)).rjust(80, "=")
[stdout_and_stderr, status.success?]
end
def disk_state
start_time = Time.now
paths = []
Find.find(".") do |path|
if ignore_path?(path)
Find.prune
else
paths << path
end
end
paths.map do |path|
[path, File.stat(path).mtime.to_s]
end.sort.tap do
puts (" scanned in %.03fs" % (Time.now - start_time)).rjust(80, "=")
end
end
def ignore_path?(path)
@ignored_paths.any? do |ignored_path|
File.absolute_path(path) == File.absolute_path(ignored_path)
end
end
class RebuildFailed < RuntimeError; end
end
end
if __FILE__ == $PROGRAM_NAME
ServeIt.main
end

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// https://github.com/tmm1/stackprof
import {Profile, Frame} from './profile'
interface StackprofFrame {
name: string
file?: string
line?: number
}
export interface StackprofProfile {
frames: {[number: string]: StackprofFrame}
raw: number[]
raw_timestamp_deltas: number[]
}
export function importFromStackprof(contents: string): Profile {
const stackprofProfile = JSON.parse(contents) as StackprofProfile
const duration = stackprofProfile.raw_timestamp_deltas.reduce((a, b) => a + b, 0)
const profile = new Profile(duration)
const {frames, raw, raw_timestamp_deltas} = stackprofProfile
let sampleIndex = 0
for (let i = 0; i < raw.length;) {
const stackHeight = raw[i++]
const stack: Frame[] = []
for (let j = 0; j < stackHeight; j++) {
const id = raw[i++]
stack.push({
key: id,
...frames[id]
})
}
const nSamples = raw[i++]
let sampleDuration = 0
for (let j = 0; j < nSamples; j++) {
sampleDuration += raw_timestamp_deltas[sampleIndex++]
}
profile.appendSample(stack, sampleDuration)
}
return profile
}

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{
"compilerOptions": {
"module": "commonjs",
"strict": true,
"jsx": "react",
"jsxFactory": "h",
"target": "es2015"
}
}