tonithenhausen

<?xml version="1.0" encoding="UTF-8"?>
<rendertheme xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" map-background="#dcd5d0"
             map-background-outside="#dcd5d0" version="5" xmlns="http://mapsforge.org/renderTheme"
             xsi:schemaLocation="http://mapsforge.org/renderTheme https://raw.githubusercontent.com/mapsforge/vtm/master/resources/rendertheme.xsd">

    <!-- AREA STYLES -->
    <style-area fill="#6e91cd" id="water" mesh="true"/>

    <!-- LINE CASINGS -->
    <style-line id="unpaved_casing" stroke="#669e844c" stroke-linecap="round"/>

rupeshtiwari

Setting up Webpack for any Typescript project from Scratch

Welcome to step by step hands-on guide to setup webpack in your upcoming typescript project. Please follow the steps and you should be able to create your own webpack project. Please download the source code from github.

You will learn below things:

1. ✅Create a Typescript node.js project.
2. ✅Install Dependencies with webpack & typescripts.
3. ✅Use Webpack CLI to crate webpack.config.js file and modify webpack.config.js based on our need.

davidkarban

Query Planner

Engine Independent Table statistics: https://mariadb.com/kb/en/library/engine-independent-table-statistics/

Database design

Table schema

MySQL schema worst practices: https://docs.google.com/presentation/d/1q7e8wE5wz4aOglXhFjm1tndytWhwB3k9KqM3HQhwuMc/edit?usp=sharing

Indexes

Optimizer hints: https://dev.mysql.com/doc/refman/5.7/en/optimizer-hints.html

vcavallo

Remote Dev machine webpack-dev-server HMR + static serving combo

Make sure you have port 8080 (or whatever you use) open on the remote machine!! Don't be like Vinney.

I'm no webpack expert (in fact this is the first project I've set up by hand ever...), but if you know what you're doing you should be able to change the relevant parts of this to fit your project:

# webpack.config.js

module.exports = {

davidkarban

HW + OS tuning

Disks

• Fsync performance: https://www.percona.com/blog/2018/02/08/fsync-performance-storage-devices/

STORAGE

• ZFS performance tuning: http://open-zfs.org/wiki/Performance_tuning#MySQL
• HW RAID configuration: https://www.percona.com/blog/2011/06/09/aligning-io-on-a-hard-disk-raid-the-theory/

Memory, connections, threads

bastman

Docker - How to cleanup (unused) resources

Once in a while, you may need to cleanup resources (containers, volumes, images, networks) ...

delete volumes

// see: https://github.com/chadoe/docker-cleanup-volumes

$ docker volume rm $(docker volume ls -qf dangling=true)

$ docker volume ls -qf dangling=true | xargs -r docker volume rm

Fizzadar

root@pyinfra-perf-tests:/opt/performance# PYINFRA_TEST_HOSTS=150 ./run_tests.sh
### pyinfra Performance Tests
--> Running with 150 hosts
--> Removing any containers
--> Spawning 150 containers...
--> Resting for 5s...
--> Running tests: pyinfra -i tests/deploy/inventory.py tests/deploy/deploy.py

--> First complete in 17.239548271 seconds
--> Second complete in 8.706844236 seconds

endolith

Grr this took hours to figure out. I was trying to install MJPG-streamer and running VLC command lines and all this crap but nothing worked.

First install motion:

~> sudo apt-get install motion

Then create a config file:

~> mkdir ~/.motion

~> nano ~/.motion/motion.conf