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@mayurah
mayurah / brew-log.sh
Last active September 18, 2018 18:11
brew-log.sh
#!/bin/bash
echo List of CLI tools / packages installed through brew
echo
echo Command Line Shell For SQLite
brew install sqlite
echo Good part of this cow is that it yields informative messages if used with tweaks
brew install cowsay
echo Usage:
@jboner
jboner / latency.txt
Last active July 16, 2024 16:04
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