Disclaimer: This piece is written anonymously. The names of a few particular companies are mentioned, but as common examples only.
This is a short write-up on things that I wish I'd known and considered before joining a private company (aka startup, aka unicorn in some cases). I'm not trying to make the case that you should never join a private company, but the power imbalance between founder and employee is extreme, and that potential candidates would
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
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"Other developers are just like us - weird"
"If you ever need to deploy Django, you're good. If you know Capistrano and Unicorn they've got rip-offs of all that stuff."
"I think we should all admit we're horrible coders and move on" "We're all drug addicts - we're fighting methods..."
"It's easy to learn to play the guitar and be able to play Bob Dylan and Weezer and never get better."
"This is basically a talk that was given 30 years ago. We just have to keep giving it every few years because young guys come along and forget it."