Project Euler and other coding contests often have a maximum time to run or people boast of how fast their particular solution runs. With Python, sometimes the approaches are...
I was looking for the fastest way to popcount large arrays of data. I encountered a very weird effect: Changing the loop variable from unsigned to uint64_t made the...
Why does this bit of code, const float x[16] = { 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 2.0, 2.1, 2.2, 2.3, 2.4, 2.5, 2.6}; const float...
IT Nursery
I’m looking for a safe and fast way to delete all of one custom post type’s posts. Using get_posts() and wp_delete_post() for each returned post does not work; it’s...
Is if (a < 901) faster than if (a <= 900)? Not exactly as in this simple example, but there are slight performance changes on loop complex code. I...
What’s the fastest way to count the number of keys/properties of an object? Is it possible to do this without iterating over the object? I.e., without doing: var count...
I am having a problem with CPU usage on my website, and am looking for a way to detect (and fix) what is causing it. A topic not covered...
I have been tracking the slow queries log of the WP based site (with the default value of the a long_query_time set to 10), and I have noticed that...
I’ve been using get_theme_mod() for some time in various projects of mine. I decided to take advantage of the Theme Customization API in WordPress v3.4 once it was available...
Suppose a1, b1, c1, and d1 point to heap memory, and my numerical code has the following core loop. const int n = 100000; for (int j = 0;...