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@NiklasMerz
NiklasMerz / deployment.yaml
Last active May 9, 2020 00:07
Github Actions Kubernetes Deploy
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
labels:
app: myproject
name: myproject
namespace: default
spec:
progressDeadlineSeconds: 600
replicas: 1
@vasanthk
vasanthk / System Design.md
Last active June 8, 2024 15:02
System Design Cheatsheet

System Design Cheatsheet

Picking the right architecture = Picking the right battles + Managing trade-offs

Basic Steps

  1. Clarify and agree on the scope of the system
  • User cases (description of sequences of events that, taken together, lead to a system doing something useful)
    • Who is going to use it?
    • How are they going to use it?
@varmais
varmais / thinced.js
Created October 1, 2015 19:43
Geolocation to Promise wrap example
var getPosition = function (options) {
return new Promise(function (resolve, reject) {
navigator.geolocation.getCurrentPosition(resolve, reject, options);
});
}
getPosition()
.then((position) => {
console.log(position);
})
@christofluethi
christofluethi / gist:646ae60d797a46a706a5
Last active April 1, 2024 22:10
Convert m4a to mp3 on OS X command line using ffmpeg
brew update
brew link yasm
brew link x264
brew link lame
brew link xvid
brew install ffmpeg
ffmpeg wiki:
https://trac.ffmpeg.org/wiki/Encode/MP3
@davegurnell
davegurnell / anorm.scala
Last active June 5, 2024 14:26
A short guide to Anorm
/*
Overview
--------
To run a query using anorm you need to do three things:
1. Connect to the database (with or without a transaction)
2. Create an instance of `anorm.SqlQuery` using the `SQL` string interpolator
3. Call one of the methods on `SqlQuery` to actually run the query
@jboner
jboner / latency.txt
Last active June 8, 2024 14:56
Latency Numbers Every Programmer Should Know
Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference 0.5 ns
Branch mispredict 5 ns
L2 cache reference 7 ns 14x L1 cache
Mutex lock/unlock 25 ns
Main memory reference 100 ns 20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy 3,000 ns 3 us
Send 1K bytes over 1 Gbps network 10,000 ns 10 us
Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD