jboner

Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference                           0.5 ns
Branch mispredict                            5   ns
L2 cache reference                           7   ns                      14x L1 cache
Mutex lock/unlock                           25   ns
Main memory reference                      100   ns                      20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy             3,000   ns        3 us
Send 1K bytes over 1 Gbps network       10,000   ns       10 us
Read 4K randomly from SSD*             150,000   ns      150 us          ~1GB/sec SSD

CristinaSolana

1. Clone your fork:

git clone git@github.com:YOUR-USERNAME/YOUR-FORKED-REPO.git

2. Add remote from original repository in your forked repository:

cd into/cloned/fork-repo
git remote add upstream git://github.com/ORIGINAL-DEV-USERNAME/REPO-YOU-FORKED-FROM.git
git fetch upstream

eightysteele

wget -c http://ufpr.dl.sourceforge.net/project/pysclint/pyhdf/0.8.3/pyhdf-0.8.3.tar.gz
tar zxvf pyhdf-0.8.3.tar.gz 
cd pyhdf-0.8.3
sudo apt-get install libhdf4-dev
sudo apt-get install python2.6-dev 
cd pyhdf
sudo apt-get install swig
swig -python hdfext.i
cd ..
export INCLUDE_DIRS=/usr/include/hdf

martinkunev

// WARNING: Requires C99 compatible compiler

#include <unistd.h>
#include <stdlib.h>

#include "heap.h"

#define CMP(a, b) ((a) >= (b))

static const unsigned int base_size = 4;

westonruter

@@ -28,7 +28,7 @@
 ### Set diff-cmd to the absolute path of your 'diff' program.
 ###   This will override the compile-time default, which is to use
 ###   Subversion's internal diff implementation.
-# diff-cmd = diff_program (diff, gdiff, etc.)
+diff-cmd = colordiff
 ### Set diff3-cmd to the absolute path of your 'diff3' program.
 ###   This will override the compile-time default, which is to use
 ###   Subversion's internal diff3 implementation.

jagregory

So you've cloned somebody's repo from github, but now you want to fork it and contribute back. Never fear!

Technically, when you fork "origin" should be your fork and "upstream" should be the project you forked; however, if you're willing to break this convention then it's easy.

* Off the top of my head *

1. Fork their repo on Github
2. In your local, add a new remote to your fork; then fetch it, and push your changes up to it

    git remote add my-fork git@github...my-fork.git

miyamuko

#
# cairo install script for MinGW.
#
# - zlib 1.2.5
# - libpng 1.4.3
# - pixman 0.18.4
# - cairo 1.10.0
#