Cengiz Can cengiz-io

Disabling GNOME Tracker and Other Info

GNOME's tracker is a CPU and privacy hog. There's a pretty good case as to why it's neither useful nor necessary here: http://lduros.net/posts/tracker-sucks-thanks-tracker/

After discovering it chowing 2 cores, I decided to go about disabling it.

Directories

What is the Strict Aliasing Rule and Why do we care?

(OR Type Punning, Undefined Behavior and Alignment, Oh My!)

What is strict aliasing? First we will describe what is aliasing and then we can learn what being strict about it means.

In C and C++ aliasing has to do with what expression types we are allowed to access stored values through. In both C and C++ the standard specifies which expression types are allowed to alias which types. The compiler and optimizer are allowed to assume we follow the aliasing rules strictly, hence the term strict aliasing rule. If we attempt to access a value using a type not allowed it is classified as undefined behavior(UB). Once we have undefined behavior all bets are off, the results of our program are no longer reliable.

Unfortunately with strict aliasing violations, we will often obtain the results we expect, leaving the possibility the a future version of a compiler with a new optimization will break code we th

Disable Secure Boot in BIOS, enable Boot of Ubuntu
Boot this ISO via USB stick: https://plus.google.com/+IanMORRISON/posts/igAkD5j3MAq
Use arch-bootstrap to install Arch Linux on the stick: https://github.com/tokland/arch-bootstrap
aloso install the wifi driver https://aur.archlinux.org/packages/rtl8723bs-dkms-git/
Copy Firmware rtl8723bs_nic.bin for Wifi from https://github.com/hadess/rtl8723bs
Update Compute Stick Firmware (to make headless work): https://communities.intel.com/message/347428#347428 https://downloadcenter.intel.com/download/25506
To boot headless: add kernel parameters text (maybe not needed anymore)

	# Synchronize history between bash sessions
	#
	# Make history from other terminals available to the current one. However,
	# don't mix all histories together - make sure that all commands from the
	# current session are on top of its history, so that pressing up arrow will
	# give you most recent command from this session, not from any session.
	#
	# Since history is saved on each prompt, this additionally protects it from
	# terminal crashes.

	{ ES BBS Intro - 1995 }
	{ Binary can be get at http://www.pouet.net/prod.php?which=55705 }

	{$M $800,0,655360}
	{$N-,E-,F+}

	uses Strings,XBuf,XMode;

	const

	#include <time.h> // Robert Nystrom
	#include <stdio.h> // @munificentbob
	#include <stdlib.h> // for Ginny
	#define r return // 2008-2019
	#define l(a, b, c, d) for (i y=a;y\
	<b; y++) for (int x = c; x < d; x++)
	typedef int i;const i H=40;const i W
	=80;i m[40][80];i g(i x){r rand()%x;
	}void cave(i s){i w=g(10)+5;i h=g(6)
	+3;i t=g(W-w-2)+1;i u=g(H-h-2)+1;l(u

	#!/usr/bin/perl
	use strict;
	use warnings;
	use File::Copy qw(copy);
	#use X11::Protocol;

	my $fname = $ARGV[0];
	if(not defined $fname) {
	die "No input\n";
	}

	---
	BasedOnStyle: LLVM
	Language: Cpp
	IndentWidth: 8
	UseTab: Always
	BreakBeforeBraces: Linux
	AlwaysBreakBeforeMultilineStrings: true
	AllowShortIfStatementsOnASingleLine: false
	AllowShortLoopsOnASingleLine: false
	AllowShortFunctionsOnASingleLine: false

	[Unit]
	Description=Disable GPE6F interrupts

	[Service]
	Type=oneshot
	ExecStart=/bin/bash -c "echo disable > /sys/firmware/acpi/interrupts/gpe6F"

	[Install]
	WantedBy=multi-user.target