Hashmaps Benchmarks - Overview
Finding the Fastest, Memory Efficient Hashmap
Table of Contents
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Fast Random bool in C++
With lots of benchmarks
While playing around with fast random number generators, I’ve started contemplating what’s the fastest way to uniformly generate random boolean values. The correct solution is this (never mind the bad seeding of mt19937, but it’s just too cumbersome to do it correctly): [Read More] -
Visualizing Bitcoin's Unspent Transaction Output
UTXO in all it's glory
About 5 years ago I’ve created a nice graph of all the bitcoin addresses. I got this: [Read More] -
Free Secure Web: Jekyll & Github Pages & Cloudflare
I have just finished moving my homepage from WordPress to jekyll + GitHub + Cloudflare. I must say this is really a fantastic setup! I have multiple reasons for that: [Read More] -
Ruby to Dot - Graph any Class Hierarchy
While cleaning up my blog I have found an old ruby program from 2005: rtd.rb. What this does it it can create pretty graphs from ruby class hierarchy. Interestingly, it still works
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Essential Linux Dev Stuff
I’ve recently started developing more in Linux, here is a collection of tools, tips and tricks to get the most out of the box. I’ll expand this list from time to time. [Read More] -
Visual Studio C++ 2015 Compiler Bug
Found a bug, it has been fixed.
I think I’ve unfortunately found a compiler bug in Visual Studio 2015, all the way back to at least VS2010. Here is the code: [Read More] -
Linux Bash Prompt
Elapsed time, errorcode ✘ or ✔, git & svn status, ...
Here is my bash prompt, with the following features: Red ✘ and errorcode if command has failed, otherwise a green ✔. git status (if available) end time of last command precise elapsed time of the previous command red hostname for root Separate line for path and command Subversion support [Read More] -
Very Fast HashMap in C++: Benchmark Results (Part 3)
Part 1: Hopscotch & Robin Hood Hashing Part 2: Implementation Variants Part 3: Benchmark Results [Read More] -
Very Fast HashMap in C++: Implementation Variants (Part 2)
Part 1: Hopscotch & Robin Hood Hashing Part 2: Implementation Variants Part 3: Benchmark Results [Read More] -
Very Fast HashMap in C++: Hopscotch & Robin Hood Hashing (Part 1)
Part 1: Hopscotch & Robin Hood Hashing Part 2: Implementation Variants Part 3: Benchmark Results [Read More] -
Analyzing Keto Calculator Demographics
Recently my Keto Calculator has grown huge. So big, that in January 2016 alone I’ve had 222,781 page views. That is a record for my site, and I have no reason to believe that it will slow down anytime soon. In my quest to make all the visitors as happy as possible, I’ve done quite a bit of analysis of my visitors to find out what I need to do with my homepage. Here is some of the data that I have gathered using Google Analytics. [Read More] -
Google Analytics Experiments is Buggy
Google Analytics has a very interesting nice feature: it is possible to use it for A/B testing, and in a nice client-side way that just uses javascript. I am using this to improve my keto calculator website. An interesting feature is that google uses a multi-armed bandit implementation, which optimizes the A/B split ratio while optimizing. [Read More] -
Body Fat Comparison Pictures
Here is a collection of visual body fat charts. Use these to estimate your personal body fat for the keto calculator. See below for men. [Read More] -
Beautiful Git Logs
git has a very configurable logging options. I’ve played a while with the configuration, and found an awesome alias that looks just beautiful. It only works as of git 1.8.3 (March 24, 2013) because it uses auto coloring. [Read More] -
Bin Picking
Some robot stuff I’ve been working on. [Read More] -
Via Ferrata Drachenwand 2013
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Calculate How Much Of What You Should Eat
I proudly present: the Keto Calculator. [Read More] -
Actioncam Videos
Here are two videos I’ve done with my awesome action cam: [Read More] -
Cholesterol and Heart Disease
Is high cholesterol bad? [Read More]