mlen’s gists

clemensg / etc_make.conf

Last active June 1, 2020 21:37

My FreeBSD make.conf

	# /etc/make.conf
	# Clemens Gruber, 2017
	#

	# Nearby mirror
	#MASTER_SITE_OVERRIDE="ftp://ftp.at.freebsd.org/pub/FreeBSD/ports/distfiles/"
	#MASTER_SITE_OVERRIDE="ftp://ftp.de.freebsd.org/pub/FreeBSD/ports/distfiles/"

	# Build
	MAKE_JOBS_NUMBER?=8

lukaszkorecki / clean_up_raspbian.sh

Last active December 18, 2015 04:19

	sudo apt-get remove -y xserver-xorg* x11-*
	sudo apt-get -y autoremove
	sudo apt-get update
	sudo apt-get install -y git-core vim build-essential

	# then run
	raspi-config

	# to alocate 1mb to the video driver and you have a nice cheap dev machine

twneale / gist:5245670

Last active September 25, 2024 13:49

.pythonrc file that adds command history and tab completion to my python shell.

	'''
	Save this file and add the following line to your ~/.bashrc"

	export PYTHONSTARTUP="$HOME/.pythonrc"
	'''
	import os
	import readline
	import rlcompleter
	import atexit

mlen / function.rb

Created December 15, 2012 08:55 — forked from rf-/function.rb

	def self.method_missing(name, *args)
	name
	end

	def function(*param_names, &block)
	klass = Class.new { attr_accessor :this, *param_names }
	this = TOPLEVEL_BINDING.eval('self')

	proc do \|*params\|
	context = klass.new

return1 / trim_enabler.txt

Last active May 26, 2024 11:01

TRIM Enabler for OS X Yosemite 10.10.3

	#
	# UPDATE for 10.10.4+: please consider this patch obsolete, as apple provides a tool called "trimforce" to enable trim support for 3rd party SSDs
	# just run "sudo trimforce enable" to activate the trim support from now on!
	#
	# Original version by Grant Parnell is offline (http://digitaldj.net/2011/07/21/trim-enabler-for-lion/)
	# Update July 2014: no longer offline, see https://digitaldj.net/blog/2011/11/17/trim-enabler-for-os-x-lion-mountain-lion-mavericks/
	#
	# Looks for "Apple" string in HD kext, changes it to a wildcard match for anything
	#
	# Alternative to http://www.groths.org/trim-enabler-3-0-released/

jboner / latency.txt

Last active May 13, 2025 17:54

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

threetee / unicorn_wrapper.sh

Created January 20, 2012 19:52

Wrapper to allow runit to send signals to the unicorn master even when its PID changes

	#!/bin/sh
	set -e

	APP=$1
	APP_PATH="/srv/${APP}/current"
	RAILS_ENV=$2
	UNICORN_CONFIG="/etc/unicorn/${APP}.rb"

	UNICORN_PID_FILE="/tmp/unicorn.${APP}.pid"

teamon / lab4

Created December 7, 2010 12:37

Laboratorium nr 4 - 7.12.2010

	Dyskretna transformata Fouriera

	1. sinus
	wyznaczyc widmo dla sygnalu ktory
	a) w n probkach bedzie mial calkowita liczbe okresow
	b) w n probkach bedzie mial niecalkowita liczbe okresow
	fft/g + semilogy -> widmo

	2. dyskretna transformata Fouriera (probkowanie widma ciaglego)
	a) f_sin \in m*fpr/N, m \in {0,1,..,N-1}

teamon / data.txt

Created November 28, 2010 13:57

LUC

	# Tabela przejsc miedzy stanami
	# q(t) z(t) q(t+1)
	0 0 3
	0 1 1
	0 2 2
	1 0 1
	1 1 1
	1 2 1
	2 0 5
	2 1 1

teamon / README

Created November 23, 2010 12:27

Teoria sygnalow, laboratorium nr 3

	Laboratorum nr 3 - 23.11.2010 - Probkowanie i kwantowanie

	1. Probkowanie
	sinus
	a) fpr > 2*f
	b) fpr == 2*f
	c) fpr < f

	Jak wyglada sygnal w dziedzinie czasu i czestotliwosci?

Mateusz Lenik mlen