Daniel is a web developer, system programmer and software architect with 12 years of experience...

web developer & system programmer

coder . cl

here you can find daniel's articles on programming, software development and ramblings on his current projects...

Chile Ayuda!

How to support our country Chile [Earthquake 2010]

source code optimization in c

by Daniel Molina Wegener on 31.12.2009

"…premature optimization is the root of all evil".
— Donald Knuth

I agree with the fact that we must do our source code level optimizations when we have finshed the construction stage or it is almost complete. I was searching articles and papers about optimizing C source code to be applied on my programs and libraries. I’ve collected some of those optimizations. But you must not confuse algorithm optimization, source code optimization and compiler optimization, since the first one refers to algorithm design and the second one just refers to the algorithm implementation, and both are sharing just few common approaches to formal reductions.

31.12.2009 | algorithms, c, development, programming, tips | Read on | Comment (1)

java mutexes

by Daniel Molina Wegener on 14.12.2009

Java synchronization is usually made through the synchronized keyword. Synchronized allow users to create a mutex around certain variable, class or method, where a mutex allows concurrent access to it. By concurrent access we should understand access from multiple threads. If an operation is atomic, there one and only one process or thread executing it. Then, mutex based operations are atomic.