vegard

Getting started with Linux kernel development

Prerequisites

The Linux kernel is written in C, so you should have at least a basic understanding of C before diving into kernel work. You don't need expert level C knowledge, since you can always pick some things up underway, but it certainly helps to know the language and to have written some userspace C programs already.

It will also help to be a Linux user. If you have never used Linux before, it's probably a good idea to download a distro and get comfortable with it before you start doing kernel work.

Lastly, knowing git is not actually required, but can really help you (since you can dig through changelogs and search for information you'll need). At a minimum you should probably be able to clone the git repository to a local directory.

amad

The Well-Architected Framework Checklist

This is the set of questions presented on The Well-Architected Framework whitepaper designed to evaluate how well your architecture is aligned with AWS best practices.

Security Pillar

Data Protection

• How are you encrypting and protecting your data at rest?

somahargitai

I just complain here

This is a complainer surface to show the world the dark side of my real-life developer experience

content

• Things software engineers say about work

neomantra

High Performance Redis

In response to this brief blog entry, @antirez tweeted for some documentation on high-performance techniques for Redis. What I present here are general high-performance computing (HPC) techniques. The examples are oriented to Redis. but they work well for any program designed to be single- or worker-threaded and asynchronous (e.g. uses epoll).

The motivation for using these techniques is to maximize performance of our system and services. By isolating work, controlling memory, and other tuning, you can achieve significant reduction in latency and increase in throughput.

My perspective comes from the microcosm of my own bare-metal (vs VM), on-premises deployment. It might not be suitable for all scenarios, especially cloud deployments, as I have little experience with HPC there. After some discussion, maybe this can be adapted as [redis.io documentation](https://redis.io/do

davidmoremad

Table of Contents

1. ACM
2. API Gateway
3. AutoScaling
4. CloudFront
5. CloudTrail
6. CloudWatch
7. Config
8. DynamoDB

danidiaz

Papers

Time clock and the ordering of events in a distributed system

Consensus on Transaction Commit

An empirical study on the correctness of formally verified distributed systems

Byzantizing Paxos by Refinement

amgorb

If you redis initial replication fails with error like 
"5101:M 20 Feb 18:14:29.130 # Client id=4500196 addr=71.459.815.760:43872 fd=533 name= age=127 idle=127 flags=S db=0 sub=0 psub=0 multi=-1 qbuf=0 qbuf-free=0 obl=13997 oll=1227 omem=192281275 events=rw cmd=psync scheduled to be closed ASAP for overcoming of output buffer limits.

means that slave buffer is not enough and you should increase it (at master!) with command like
redis-cli config set client-output-buffer-limit "slave 836870912 836870912 0"

more info: https://redis.io/topics/clients

tute

A top-down look into Elixir (for Rubyists)

• Phoenix (as "Rails for Elixir")
  • Rails and Phoenix can get suspiciously similar
  • A code sample:
• controller.rb

cwest

#!/usr/bin/env bash
set -ex

#   ____ _                 _ _____                     _              __  ____     ______  
#  / ___| | ___  _   _  __| |  ___|__  _   _ _ __   __| |_ __ _   _  |  \/  \ \   / /  _ \ 
# | |   | |/ _ \| | | |/ _` | |_ / _ \| | | | '_ \ / _` | '__| | | | | |\/| |\ \ / /| |_) |
# | |___| | (_) | |_| | (_| |  _| (_) | |_| | | | | (_| | |  | |_| | | |  | | \ V / |  __/ 
#  \____|_|\___/ \__,_|\__,_|_|  \___/ \__,_|_| |_|\__,_|_|   \__, | |_|  |_|  \_/  |_|    
#                                                             |___/                        

johanstenberg92

#!/bin/sh

if [ "$(id -u)" != "0" ]; then
  echo "Sorry, you are not root."
  exit 1
fi

if !(type pcp 2>/dev/null;) then
  yum -y install git bison flex gcc-c++ perl-Tk-devel libmicrohttpd-devel
  git clone git://git.pcp.io/pcp