wvengen

Finding a Ruby memory leak using a time analysis

When developing a program in Ruby, you may sometimes encounter a memory leak. For a while now, Ruby has a facility to gather information about what objects are laying around: ObjectSpace.

There are several approaches one can take to debug a leak. This discusses a time-based approach, where a full memory dump is generated every, say, 5 minutes, during a time that the memory leak is showing up. Afterwards, one can look at all the objects, and find out which ones are staying around, causing the

staltz

How to show migration guides in GitHub Markdown

Use the diff code highlighting tag.

  ```diff
  - foo
  + bar

Example:

drbrain

def a l = def b; <<-NIGHTMARES; end; puts send l; end
😱😱😱
  NIGHTMARES

a

BanzaiMan

language: elixir

elixir:
  - 1.0.5

otp_release: 17.3

matrix:
  include:
    - elixir: 1.2

Manu343726

# Install quemu, docker, etc
yaourt -S qemu qemu-user-static binfmt-support

# The quemu-user-static AUR package is outdated and broken. The .deb package they pull is no longer in the ubuntu repository.
# Edit the PKGBUILD and use qemu-user-static_2.4+dfsg-3_amd64.deb (With SHA1 sum "84d83a16c60c82b6c579f2f750b04a3ac26c249b")

# Enable ARM emulation
update-binfmts --enable qemu-arm

leedm777

#!/bin/sh

#
# Forwards SSH agent into a Docker container running in the active
# docker-machine
#

PROGNAME=$(basename $0)

NAME=$(docker-machine active)

tokafish

defmodule CombinationsBenchmark do
  def combinations(collection, k) do
    List.last(do_combinations(collection, k))
  end

  defp do_combinations(list, k) do
    combinations_by_length = [[[]]|List.duplicate([], k)]

    List.foldr list, combinations_by_length, fn x, next ->
      sub = :lists.droplast(next)

nmn

function component(fn){
  class C extends React.Component {
    render(){
      return fn(this.props, this.context)
    }
  }
  C.displayName = fn.displayName || fn.name
  C.propTypes = fn.propTypes
  C.contextTypes = fn.contextTypes
  return C

selaromi

Make Flashlight work on 10.10.4

1. Install SIMBL http://culater.net/software/SIMBL/SIMBL.php
2. Copy SpotlightSIMBL.bundle to /Library/Application Support/SIMBL/Plugins/ (a)
3. Copy Flashlight.osax to ~/Library/ScriptingAdditions/ (b)
4. Disable Flashlight
5. Enable Flashlight
6. Open Script Editor on your Mac (look for "Script Editor In Spotlight") and paste the following code (don't change Snow Leopard for Yosemite)

tell application "Spotlight" to inject SIMBL into Snow Leopard

keplersj

#[link(name = "logger")]
extern {
    fn CrystalLog(text: *const u8);
}

fn log(text: &'static str) {
    unsafe{ CrystalLog(text.as_bytes().as_ptr()) };
}

fn main() {