Monsterovich

#!/usr/bin/env python
import os
import sys
from subprocess import Popen, PIPE, STDOUT
import time

HEADPHONE_EVENT = "jack/headphone"

p = Popen(["/usr/bin/acpi_listen"],
          stdout=PIPE, stderr=STDOUT, bufsize=1)

fbrinker

#!/usr/bin/env bash
# requires jq

DISPLAY_CONFIG=($(i3-msg -t get_outputs | jq -r '.[]|"\(.name):\(.current_workspace)"'))

for ROW in "${DISPLAY_CONFIG[@]}"
do
	IFS=':'
	read -ra CONFIG <<< "${ROW}"
	if [ "${CONFIG[0]}" != "null" ] && [ "${CONFIG[1]}" != "null" ]; then

hellerbarde

Latency numbers every programmer should know

L1 cache reference ......................... 0.5 ns
Branch mispredict ............................ 5 ns
L2 cache reference ........................... 7 ns
Mutex lock/unlock ........................... 25 ns
Main memory reference ...................... 100 ns             
Compress 1K bytes with Zippy ............. 3,000 ns  =   3 µs
Send 2K bytes over 1 Gbps network ....... 20,000 ns  =  20 µs
SSD random read ........................ 150,000 ns  = 150 µs

Read 1 MB sequentially from memory ..... 250,000 ns = 250 µs