Podcast: Trends in high availability and fault tolerance (2009)
An interview with DiDio by Karen Guglielmo, executive editor at SearchCIO-Midmarket.com. (my local copy)
Difficulty 2 · Easy
Difficulty level 2 of 5: Easy
Podcast: Interview with Werner Vogels (2006)
Below is an interview with Werner Vogels, CTO@AWS. (my local copy). First some quotes: “Ultimately developers don’t care about SOAP and REST, as long as the data is delivered. You don’t need to buy into some big revolutionary approach”…
How does the number of leafs on a tree grow with the height of the tree?
As a was lying on my back in the University park to day, resting a bit between reading papers (more on that later), I looked up at a pine tree and asked myself a very computer sciencey question. How does…
Cross platform benchmarking tools
VM benchmarking General benchmarking tools phoronix is a testing and benchmarking platform.
Python: inverse of zip
So you have a list of tuples, created with the zip built-in function in Python. Like this: z = [(1, ‘a’), (2, ‘b’), (3, ‘c’)] And you want to reverse zip, to get these two lists: x = [1, 2,…
How to convert numpy matrix with different floats to matrix with zeros and ones
Given a numpy matrix (mixed_float_matrix) with a variety of float values, how do you convert it into a matrix, with zeros and ones (ones in place of non-zero values in the original matrix)?
How to split a file in two on even/odd line numbers
I have a (CSV) file that I want to split in two. I want all the even lines to go to one file, and all the odd lines to go to another file. $ ls -1 FILE [MAGIC] $ ls…
Trying SQLAlchemy for Python
Install SQLAlchemy This is easy (using pip): pip install sqlalchemy Learn SQLAlchemy This tutorial uses an in memory SQLite database, which is cool in itself. Various topics: Indexes
How to install gfortran on Mac OS X
Why did I install gfortran? Well, not to write Fortran programs. I tried installing SciPy using pip install scipy, and I got a message that a Fortran compiler was needed. Install This is how I installed gfortran on my Mac:…
Getting up to speed with Git
This is how you can get started successfully using Git. Basic concepts: Git Tutorial (by Lars Vogel) how successful developers are using Git:A successful branching model for Git (Gitflow) Online books: Pro Git and Git Community Book Additional things to…