This sort of statement is ridiculous; people making it are either incredibly uninformed, or incredibly dishonest. In particular: The speed of dynamic memory allocation in the two cases will depend on the pattern of dynamic memory use, as well as the implementation. It is trivial for someone familiar with the algorithms used in both cases … Read more
Don’t sweat the small stuff. You’ve already picked one of the slower scripting languages out there, so trying to optimize down to the opcode is not going to help you much. The reason to choose an interpreted, dynamic language like Python is to optimize your time, not the CPU’s. If you use common language idioms, … Read more
My guess is that it is a problem with the compiler options you are using, the compiler itself, or the file system. I just now compiled both versions (with optimizations on) and ran them against a 92,000 line text file: c++ version: 113 ms c version: 179 ms And I suspect that the reason that … Read more
Is the technique at the end of this documentation useful? Alternatively, I’ve avoided many of the performance pitfalls using a fluent interface to declaratively state which entities in a given transaction for sure won’t change vs. might change (immutable vs. immutable). For example, if the entities I am saving are aggregate roots in which the … Read more
I do not think Nginx can be used for what you’re trying to use it for. While it can be used to proxy tcp streams or load balance them, it’s not necessarily knowledgable of the protocol and request structure within them. So to answer your question: from database sharding perspective – is it possible to … Read more
I’m not sure if this is still an issue, but I know that Google has continued to ramp up security measures with Chrome. This is especially true with HTTPS and I believe Google is pushing for everything to move to HTTPS. Certificates that are not clean (several criteria for this) present problems and may be … Read more
You are able to get a visual performance boost by implementing will-change on elements. It is supported in recent browsers (excluding edge and no IE). The will-change CSS property hints to browsers how an element is expected to change. Browsers may set up optimizations before an element is actually changed. These kinds of optimizations can … Read more
When you run code in Firefox, you can often see huge drop in speed for asm.js calls, which is most probably caused either by repeated compilation (which is visible in console) or by cost of js-to-asm calls. This hypothesis is further strenghtened by Luke Wagner, implementor of asm.js: one performance fault that we already know … Read more