Pieter-Jan Briers PJB3005

Linux Desktop Issues

This is basically my manifesto of why Linux sucks and I keep using Windows as a desktop OS. This is both as a developer platform and end-user targeting.

Look: I would love to be able to use Linux as a daily driver. KDE is amazing and they clearly put far more effort into the desktop experience/UI than Windows (just the volume mixer alone). There are simply far too many underlying and infrastructural problems to the Linux desktop that none of KDE's great UI changes can make up for. I want Linux fanboys, developers, etc... to stop sticking their damn head in the sand about these issues and admit that Linux is still decades behind in some basic infrastructure. This shit can't get fixed if people refuse to admit it's broken in the first place, which some people are far too happy to do.

Desktop App Experience & Developer Tools

Windows has far better desktop apps than Linux, and thanks to WSL, I have all the CLI apps of Linux too. While I do believe KDE Plasma is a much better desk

why doesn't radfft support AVX on PC?

So there's two separate issues here: using instructions added in AVX and using 256-bit wide vectors. The former turns out to be much easier than the latter for our use case.

Problem number 1 was that you positively need to put AVX code in a separate file with different compiler settings (/arch:AVX for VC++, -mavx for GCC/Clang) that make all SSE code emitted also use VEX encoding, and at the time radfft was written there was no way in CDep to set compiler flags for just one file, just for the overall build.

[There's the GCC "target" annotations on individual funcs, which in principle fix this, but I ran into nasty problems with this for several compiler versions, and VC++ has no equivalent, so we're not currently using that and just sticking with different compilation units.]

The other issue is to do with CPU power management.

Each of these commands will run an ad hoc http static server in your current (or specified) directory, available at http://localhost:8000. Use this power wisely.

Discussion on reddit.

Python 2.x

$ python -m SimpleHTTPServer 8000

	Push-Location (Split-Path -Path $MyInvocation.MyCommand.Definition -Parent)

	Import-Module posh-git


	# Set up a simple prompt, adding the git prompt parts inside git repos
	function global:prompt {
	$realLASTEXITCODE = $LASTEXITCODE

	Write-Host($pwd.ProviderPath) -nonewline -ForeGroundColor green

	Ansible playbook to setup HTTPS using Let's encrypt on nginx.

	The Ansible playbook installs everything needed to serve static files from a nginx server over HTTPS.
	The server pass A rating on [SSL Labs](https://www.ssllabs.com/).

	To use:
	1. Install [Ansible](https://www.ansible.com/)
	2. Setup an Ubuntu 16.04 server accessible over ssh
	3. Create `/etc/ansible/hosts` according to template below and change example.com to your domain
	4. Copy the rest of the files to an empty directory (`playbook.yml` in the root of that folder and the rest in the `templates` subfolder)

	using System;
	using System.Linq;
	using System.Collections.Generic;

	public static class GasConstants
	{
	const float OneAtmosphere = 101.325; // kPa
	const float IdealGasEquation = 8.31; // kPaL/(Kmol)
	const float TemperatureCosmicMicrowaveBackround = 2.7; // K
	}