roghnin

Arch - WSL2

• enabling wsl2: https://docs.microsoft.com/en-us/windows/wsl/install-win10
• Arch-wsl: https://github.com/yuk7/ArchWSL
• configuration, including default user: https://docs.microsoft.com/en-us/windows/wsl/wsl-config#configuration-options
• fixing bad file permissions: https://www.turek.dev/post/fix-wsl-file-permissions/
• wsl-open: https://github.com/4U6U57/wsl-open

ConEmu

• enabling drop-down mode: https://conemu.github.io/en/SettingsQuake.html
• minimizing on closing the last tab: https://conemu.github.io/en/Settings.html#Task_bar
• resizing in "conemu inside" mode: Maximus5/ConEmu#1485

roghnin

qemu-img convert -O raw source.vhd output.raw

roghnin

# Example xorg.conf.d snippet that assigns the touchpad driver
# to all touchpads. See xorg.conf.d(5) for more information on
# InputClass.
# Additional options may be added in the form of
#   Option "OptionName" "value"
#
Section "InputClass"
        Identifier "touchpad catchall"
        Driver "synaptics"
        MatchIsTouchpad "on"

roghnin

-Background
	-garbage collection = memory reclaiming = free(), making the memory able to be allocated again.
	-Need a garbage collection algorithm for CONCURRENT, LOCK FREE data structures. 
		-concurrent data structures is harder since readers can still be in a retired node.
		-For lock free scenarios, it's hard to decide when it's a good time to reclaim a node.
	-NOT concurrent garbage collection. (Although it's another interesting topic)


-Automatic Technique: simply killing the pointers will trigger the garbage collection.
	-Reference counts

roghnin

#!/usr/bin/env python

from mininet.net import Mininet
from mininet.node import Controller, RemoteController
from mininet.cli import CLI
from mininet.log import setLogLevel, info
from mininet.link import Link, Intf, TCLink
from mininet.topo import Topo
from mininet.util import dumpNodeConnections
from mininet.node import Host

roghnin

#!/bin/sh -ev
# Reference: https://github.com/mininet/mininet/wiki/Installing-new-version-of-Open-vSwitch
# How to test: ovs-vsctl -V

# Check permission
test $(id -u) -ne 0 && echo "This script must be run as root" && exit 0

#Remove old version ovs
aptitude remove openvswitch-common openvswitch-datapath-dkms openvswitch-controller openvswitch-pki openvswitch-switch -y