Jacob Lee jakelee8

Linux performance tweaks

All commands are run as root.

Enable swap file

Create the swap file using either of these commands. fallocate is faster but may not work on all filesystems.

fallocate -l 32G /swap/swap0

Compile programs with OpenMP on macOS and llvm/clang.

Download the LLVM-3.8 binaries:

Download page: http://llvm.org/releases/download.html#3.8.0
Direct link for MacOS binaries: http://llvm.org/releases/3.8.0/clang+llvm-3.8.0-x86_64-apple-darwin.tar.xz

Install the binaries:

For example, to install at /opt/llvm38:

Avahi Zeroconf for Linux

Install

apt install avahi-utils avahi-daemon

The service starts automatically.

http://askubuntu.com/a/293447

All commands are run as root.

apt install build-essential glances python3-pip

# use py3sensors because pysensors doesn't work on Python 3.x
pip3 install https://bitbucket.org/gleb_zhulik/py3sensors/get/0cf96f4e2cfe.zip

Linux power management and WoL

apt install at ethtool pm-utils

/etc/network/interfaces

iface eth0 inet dhcp

Five disks, 6TB each. Adjust as needed.

Reset the disks.

for f in /dev/sd[abcde]; do
  sudo dd if=/dev/zero of=$f bs=512 count=1 conv=notrunc
done

To test different settings:

xinput list
xinput list-props 'Logitech Rechargeable Touchpad T650'
xinput set-prop 'Logitech Rechargeable Touchpad T650' 'Synaptics Finger' 1 12 0
xinput set-prop 'Logitech Rechargeable Touchpad T650' 'Synaptics Locked Drags' 1
xinput set-prop 'Logitech Rechargeable Touchpad T650' 'Synaptics Palm Detection' 1

Keybase proof

I hereby claim:

I am jakelee8 on github.
I am jakelee8 (https://keybase.io/jakelee8) on keybase.
I have a public key ASBn-Y9oXnoxFx0lTVS2VMZzYH0vKskca7r90WMy02WxjAo

To claim this, I am signing this object:

	DEVICE=/dev/sdb
	MOUNT=/media/usb

	# apt-get install -y udftools
	# apt-get install -y casper grub-efi
	# apt-get install -y grub-pc

	# partition the disk
	# fdisk ${DEVICE}

	#!/usr/bin/python

	import errno
	import os
	import os.path
	import sys
	import uuid

	from subprocess import call