ekozhura

"""
Usage:

Make sure that redis is running on localhost (or adjust the url)
Install uvicorn or some other asgi server https://asgi.readthedocs.io/en/latest/implementations.html

    pip install -u uvicorn

Install dependencies

ekozhura

Latency numbers every programmer should know

L1 cache reference ......................... 0.5 ns
Branch mispredict ............................ 5 ns
L2 cache reference ........................... 7 ns
Mutex lock/unlock ........................... 25 ns
Main memory reference ...................... 100 ns             
Compress 1K bytes with Zippy ............. 3,000 ns  =   3 µs
Send 2K bytes over 1 Gbps network ....... 20,000 ns  =  20 µs
SSD random read ........................ 150,000 ns  = 150 µs

Read 1 MB sequentially from memory ..... 250,000 ns = 250 µs

ekozhura

ffmpeg

Converting Audio into Different Formats / Sample Rates

Minimal example: transcode from MP3 to WMA:
ffmpeg -i input.mp3 output.wma

You can get the list of supported formats with:
ffmpeg -formats

Convert WAV to MP3, mix down to mono (use 1 audio channel), set bit rate to 64 kbps and sample rate to 22050 Hz:

ekozhura

Reposted from Qiita

For almost a year now, I've been using this "flux" architecture to organize my React applications and to work on other people's projects, and its popularity has grown quite a lot, to the point where it shows up on job listings for React and a lot of people get confused about what it is.

Why I'm tired of using and teaching flux

There are a billion explainations on the internet, so I'll skip explaining the parts. Instead, let's cut to the chase -- the main parts I hate about flux are the Dispatcher and the Store's own updating mechanism.

If you use a setup similar to the examples in facebook/flux, and you use flux.Dispatcher, you probably have this kind of flow:

ekozhura

24 Days of PureScript

Table of Contents

1. Introduction
2. purescript-foreign
3. purescript-easy-ffi and purescript-oo-ffi
4. purescript-canvas and purescript-free-canvas
5. purescript-rx
6. purescript-lens

ekozhura

github.fetch().fork()
  .then(@chicoxyzzy)
  .then(@blia)
  .then(@ekozhura)
  .then(@RReverser)
  .then(@terrysahaidak)
  .then(@ALF-er);