Skip to content

Instantly share code, notes, and snippets.

View HoukasaurusRex's full-sized avatar
💨
force pushing to master

JT Houk HoukasaurusRex

💨
force pushing to master
View GitHub Profile
@sabarasaba
sabarasaba / gist:3080590
Created July 10, 2012 02:19
Remove directory from remote repository after adding them to .gitignore
git rm -r --cached node_modules
git commit -m 'Remove the now ignored directory node_modules'
git push origin master
@hellerbarde
hellerbarde / latency.markdown
Created May 31, 2012 13:16 — forked from jboner/latency.txt
Latency numbers every programmer should know

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

@nicerobot
nicerobot / README.md
Last active February 25, 2024 02:41
Mac OS X uninstall script for packaged install of node.js from https://stackoverflow.com/a/9287292/23056

To run this, you can try:

curl -ksO https://gist.githubusercontent.com/nicerobot/2697848/raw/uninstall-node.sh
chmod +x ./uninstall-node.sh
./uninstall-node.sh
rm uninstall-node.sh