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crmorford / branch-splitter
Last active Sep 8, 2017
split branch into assets and app-deploy
View branch-splitter
git_stuff() {
git checkout master
echo "creating new branch for $asset_type files"
git checkout -b $BRANCH-$asset_type
ljos /
Last active Oct 3, 2019
Showing how to listen to all keypresses in OS X through the Cocoa API using Python and PyObjC
#!/usr/bin/env python
# Copyright © 2016 Bjarte Johansen <>
# The MIT License (MIT)
# Permission is hereby granted, free of charge, to any person obtaining
# a copy of this software and associated documentation files (the
# “Software”), to deal in the Software without restriction, including
jboner / latency.txt
Last active Nov 17, 2019
Latency Numbers Every Programmer Should Know
View latency.txt
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
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