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Qiongsi Wu qiongsiwu

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@royling
royling / tmux-iterm2.md
Last active April 24, 2023 19:35
tmux in iTerm2 cheatsheet
@rogerhub
rogerhub / smc.c
Created December 27, 2015 01:41
OS X script for getting fan speed and temperature, based off of Chris911/iStats
// clang -o smc smc.c -framework IOKit -framework CoreFoundation
/*
* Apple System Management Control (SMC) Tool
* Copyright (C) 2006 devnull
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
@samklr
samklr / install-proto.sh
Created April 20, 2015 08:19
Install Protobuf debian ...
#! /bin/bash
wget https://github.com/google/protobuf/releases/download/v2.6.1/protobuf-2.6.1.tar.gz
tar xzf protobuf-2.6.1.tar.gz
cd protobuf-2.6.1
sudo apt-get update
sudo apt-get install build-essential
sudo ./configure
sudo make
sudo make check
sudo make install
@JadenGeller
JadenGeller / Matrix Examples.swift
Last active August 10, 2023 10:03
Matrices in Swift
// Numerical matrix examples
let x: Matrix = [[10, 9, 8], [3, 2, 1]]
let y: Matrix = [[1, 2, 3], [4, 5, 6]]
let z: Matrix = [[1, 2], [3, 4], [5, 6]]
x + y // [[11, 11, 11], [7, 7, 7]]
x * y // [[10, 18, 24], [12, 10, 6]]
2 * x // [[20, 18, 16], [6, 4, 2]]
y ** z // [[22, 28], [49, 64]]
@tonymtz
tonymtz / gist:714e73ccb79e21c4fc9c
Created November 15, 2014 00:02
Uninstall XQuartz.app from OSX Yosemite
launchctl unload /Library/LaunchAgents/org.macosforge.xquartz.startx.plist
sudo launchctl unload /Library/LaunchDaemons/org.macosforge.xquartz.privileged_startx.plist
sudo rm -rf /opt/X11* /Library/Launch*/org.macosforge.xquartz.* /Applications/Utilities/XQuartz.app /etc/*paths.d/*XQuartz
sudo pkgutil --forget org.macosforge.xquartz.pkg
# Log out and log in
@gatlin
gatlin / uninstall-haskell-osx.sh
Last active October 18, 2025 20:23
Uninstall Haskell from Mac OS X
#!/bin/bash
# source: http://www.haskell.org/pipermail/haskell-cafe/2011-March/090170.html
sudo rm -rf /Library/Frameworks/GHC.framework
sudo rm -rf /Library/Frameworks/HaskellPlatform.framework
sudo rm -rf /Library/Haskell
rm -rf ~/.cabal
rm -rf ~/.ghc
rm -rf ~/Library/Haskell
@jboner
jboner / latency.txt
Last active May 8, 2026 20:40
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
@jimbojsb
jimbojsb / gist:1630790
Created January 18, 2012 03:52
Code highlighting for Keynote presentations

Step 0:

Get Homebrew installed on your mac if you don't already have it

Step 1:

Install highlight. "brew install highlight". (This brings down Lua and Boost as well)

Step 2: