Jan Willem jagij

jagij / avicii-levels.js

Created December 30, 2018 18:03

Avicii levels for micro:bit

	// use https://makecode.microbit.org/# to generate the executable code
	input.onButtonPressed(Button.B, function () {
	const levels = [
	'F#5:2',
	'E5:2',
	'E5:2',
	'R:2',
	'E5:2',
	'E5:2',
	'E5:2',

jagij / longpoll.js

Created July 12, 2018 11:58

Short node program to test whether your fake-sqs supports long-polling

	const AWS = require('aws-sdk');

	const sqsOptions = {
	endpoint: process.env.SQS_ENDPOINT \|\| 'https://sqs.eu-west-1.amazonaws.com',
	region: process.env.AWS_REGION \|\| 'eu-west-1',
	}
	const sqs = new AWS.SQS(sqsOptions);

	const queueName = process.env.SQS_QUEUE_NAME \|\| "SQS_QUEUE_NAME";

jagij / patcharoo.sh

Created July 7, 2018 11:21

Patch zbar with some patch from sourceforge

	mkdir source
	cd source

	echo 'deb-src http://archive.raspbian.org/raspbian/ stretch main contrib non-free rpi' \| sudo tee -a /etc/apt/sources.list
	sudo apt-get update

	apt-get source libzbar0

	cd zbar-0.10+doc
	wget https://sourceforge.net/p/zbar/patches/42/attachment/disable_32bit_color_depth.patch

jagij / test.sh

Created May 25, 2018 20:14

Run of uuid generation benchmark with and without BFP JIT enabled

	# echo 0 > /proc/sys/net/core/bpf_jit_enable

	# docker run --rm -it -v $PWD:/bla -w /bla node:8 ./linux -m 1000000
	Ran 1000000 loops in 19.346576528s

	# docker run --privileged --rm -it -v $PWD:/bla -w /bla node:8 ./linux -m 1000000
	Ran 1000000 loops in 3.599587578s

	# echo 1 > /proc/sys/net/core/bpf_jit_enable

jagij / perf_confined.svg

Created May 24, 2018 10:33

Flamegraph comparison between two docker runs: with and without seccomp=unconfined

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