HatemMahmoud

# for more info: https://gist.github.com/1120938

lstoll

/*
 * 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]) {

xuwei-k

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

aemkei

            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

plusjade

# 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>"

datagrok

This article is now published on my website: When are circular imports fatal?

KodrAus

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.

dlaehnemann

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

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

moyix

#!/bin/bash

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