tomtung

Flamegraphing in Rust can now be done with a new cargo subcommand. Please check this out before embarking on the legacy journey below: https://github.com/flamegraph-rs/flamegraph

flamegraphing rust binaries' cpu usage with perf

One-time setup

Install perf, using Brendan Gregg's guide: http://www.brendangregg.com/perf.html#Prerequisites
Install flamegraph from repo:

Profiling performance

Using perf:

$ perf record -g binary
$ perf script | stackcollapse-perf.pl | rust-unmangle | flamegraph.pl > flame.svg

NOTE: See @GabrielMajeri's comments below about the -g option.

	# place mathjax.rb in _plugins directory of your blog
	require 'redcarpet'
	class HTMLwithAlbino < Redcarpet::Render::HTML
	def block_code(code, language)
	if language == 'mathjax'
	"<script type=\"math/tex; mode=display\">
	#{code}
	</script>"
	else
	"<pre><code class=\"#{language}\">#{code}</code></pre>"

	DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
	Version 2, December 2004

	Copyright (C) 2011 YOUR_NAME_HERE <YOUR_URL_HERE>

	Everyone is permitted to copy and distribute verbatim or modified
	copies of this license document, and changing it is allowed as long
	as the name is changed.

	DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE

	package scalaz_memo_example

	import scala.util.control.Exception.allCatch
	import scalaz._
	import Scalaz._

	object Main{

	def timer[T](f : => T):T = {
	val start = System.currentTimeMillis

	/*
	* Starts jetty for scalatra programatically
	*
	* Replace YourApplicationEndpointFilter with the filter in your application
	*/
	import org.eclipse.jetty.server.Server
	import org.eclipse.jetty.servlet.{DefaultServlet, ServletContextHandler}

	object JettyLauncher {
	def main(args: Array[String]) {

	#!/bin/bash

	gdb -p "$1" -batch -ex 'set {short}$rip = 0x050f' -ex 'set $rax=231' -ex 'set $rdi=0' -ex 'cont'