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@handlerww
handlerww / init.sh
Created July 22, 2021 04:48
kind cross cluster
#!/bin/bash
set -eux
SUBNET_A="10.10.0.0/16"
SUBNET_B="10.20.0.0/16"
CONFIG_A=$(cat <<EOF
kind: Cluster
apiVersion: kind.x-k8s.io/v1alpha4
@sokada1221
sokada1221 / query_all_tidb
Created September 12, 2019 13:05
Workaround for https://github.com/pingcap/tidb-operator/issues/903
#!/bin/bash
set -o errexit
set -o errtrace
set -o nounset
set -o pipefail
#set -x
function script_usage() {
cat << EOF
Usage:
@antirez
antirez / lmdb.tcl
Created April 28, 2017 15:40
LMDB -- First version of Redis written in Tcl
# LVDB - LLOOGG Memory DB
# Copyriht (C) 2009 Salvatore Sanfilippo <antirez@gmail.com>
# All Rights Reserved
# TODO
# - cron with cleanup of timedout clients, automatic dump
# - the dump should use array startsearch to write it line by line
# and may just use gets to read element by element and load the whole state.
# - 'help','stopserver','saveandstopserver','save','load','reset','keys' commands.
# - ttl with milliseconds resolution 'ttl a 1000'. Check ttl in dump!
@lilydjwg
lilydjwg / lxc-arch2
Last active April 9, 2024 16:34
lxc-arch2: a script to create a copy of my Arch Linux system in systemd-nspawn for testing
#!/bin/zsh -e
cd ~/tmpfs
mkdir -p .lxc-root .lxc-data/root/etc .lxc-work
sudo GDK_DPI_SCALE=$GDK_DPI_SCALE zsh -e - <<'EOF'
chown 0:0 .lxc-data/root .lxc-data/root/etc
modprobe overlay
mountpoint .lxc-root || mount -t overlay -o lowerdir=/,upperdir=$PWD/.lxc-data/root,workdir=$PWD/.lxc-root overlayfs $PWD/.lxc-root
@wvengen
wvengen / extend.sh
Last active April 22, 2024 14:02
Extend non-HiDPI external display above HiDPI internal display
#!/bin/sh
# extend non-HiDPI external display on DP* above HiDPI internal display eDP*
# see also https://wiki.archlinux.org/index.php/HiDPI
# you may run into https://bugs.freedesktop.org/show_bug.cgi?id=39949
# https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/883319
EXT=`xrandr --current | sed 's/^\(.*\) connected.*$/\1/p;d' | grep -v ^eDP | head -n 1`
INT=`xrandr --current | sed 's/^\(.*\) connected.*$/\1/p;d' | grep -v ^DP | head -n 1`
ext_w=`xrandr | sed 's/^'"${EXT}"' [^0-9]* \([0-9]\+\)x.*$/\1/p;d'`
@quchen
quchen / trolling_haskell
Last active August 19, 2024 15:04
Trolling #haskell
13:15 <xQuasar> | HASKELL IS FOR FUCKIN FAGGOTS. YOU'RE ALL A BUNCH OF
| FUCKIN PUSSIES
13:15 <xQuasar> | JAVASCRIPT FOR LIFE FAGS
13:16 <luite> | hello
13:16 <ChongLi> | somebody has a mental illness!
13:16 <merijn> | Wow...I suddenly see the error of my ways and feel
| compelled to write Node.js!
13:16 <genisage> | hi
13:16 <luite> | you might be pleased to learn that you can compile
| haskell to javascript now
@jboner
jboner / latency.txt
Last active September 20, 2024 23:33
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
@henrik
henrik / tmux_cheatsheet.markdown
Created March 3, 2012 19:47
tmux cheatsheet

tmux cheatsheet

As configured in my dotfiles.

start new:

tmux

start new with session name: