This is my first blog post from a series of blog post where I’ll describe how a new sort algorithm works. This new sorting algorithm is called HOBS ( High Order Bucket Sorting). HOBS has it’s roots in Bitmap Sort, with Bitmap Sort an array can be sort really fast but is very efficient when it has to deal with small numbers. If the numbers are high…

For a long period of my life I worked a lot on Windows machines using Visual Studio as a development tool. One thing that I really didn’t liked about the Visual Studio was the time needed to install it and some constraints

At this moment I spend a lot of time on Linux, Ubuntu and Cent OS. For a long period I was looking for…

As I hack my way to build a better summy system I had this cool bug in C, I have a memory buffer which is allocated every time a request is done. This chunk of memory is allocated on the stack but every time I had the same memory space allocated by the OS. By not doing a memset I had some garbage left from…

L1 cache and the effects of cache lines eviction. 

Arm cpu have a L1 and L2 cache, the L1 is very close with the cpu, this is translated with a faster memory access, and it has about 32 KB in size. Checking the manual specs of the Arm cpu, the L1…

How to get the CPU information on Android. 

Android is built on top of the Linux Kernel, to get cpu information we just need to read a file from the file system.

/proc/cpuinfo