I've spent a few minutes manually re-ordering fields in a struct in order to reduce padding effects[1], which feels like a few minutes too much. My gut feeling says that my time could probably be b...

I come from a Python/Ruby/JavaScript background. I understand how pointers work, however, I'm not completely sure how to leverage them in the following situation. Let's pretend we have a fictitiou...

I want to store huge amounts of Strings in a Map<String, MagicObject>, so that the MagicObjects can be accessed quickly. There are so many entries to this Map that memory is becoming a bottle...

What are some tips to reduce the memory usage of .NET applications? Consider the following simple C# program. class Program { static void Main(string[] args) { Console.ReadLine(); } } Compil...

I had a job interview for probation(? I'm not sure if that's the word) and interviewer asked me to tell him what are the differences between structure and class. So I told him everything I knew an...

There are often times when you know for a fact that your loop will never run more than x number of times where x can be represented by byte or a short, basically a datatype smaller than int. Why d...

I need a memory efficient int-int dict in Python that would support the following operations in O(log n) time: d[k] = v # replace if present v = d[k] # None or a negative number if not present I...

This is a simple programming question, coming from my lack of knowledge of how PHP handles array copying and unsetting during a foreach loop. It's like this, I have an array that comes to me from a...

Background: The goal is to write a rather large (at least 2048 x 2048 pixels) image file with OpenGL rendered data. Today I first use glReadPixels in order to get the 32-bit (argb8888) pixel data...

I have written an application in CUDA, which uses 1kb of shared memory in each block. Since there is only 16kb of shared memory in each SM, only 16 blocks can be accommodated overall, right? Though...

I'm trying to build a Trie but on a mobile phone which has very limited memory capacity. I figured that it is probably best that the whole structure be stored on disk, and only loaded as necessary...

I have a question about the std::vector. I have a very memory intensive algorithm where I forsee that predicting vector sizes and reserving enough memory for the vectors in advance will help me a ...