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@leesmith
leesmith / simple-git-workflow.md
Last active Mar 22, 2022
Simple Git Workflow For Continuous Delivery
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Simple Git Workflow For Continuous Delivery

Workflow guidelines:

  • master branch is always production-ready, deployable, 100% green test suite
  • New development is done on feature branches, with frequent rebasing onto master
  • Clean commit history by preferring to rebase instead of merge (git pull is configured to automatically rebase)

rebase workflow

Workflow

@jboner
jboner / latency.txt
Last active Aug 7, 2022
Latency Numbers Every Programmer Should Know
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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
@ofan
ofan / lisp.cpp
Last active Jul 4, 2022
Lisp interpreter in 90 lines of C++
View lisp.cpp
Lisp interpreter in 90 lines of C++
I've enjoyed reading Peter Norvig's recent articles on Lisp. He implements a Scheme interpreter in 90 lines of Python in the first, and develops it further in the second.
Just for fun I wondered if I could write one in C++. My goals would be
1. A Lisp interpreter that would complete Peter's Lis.py test cases correctly...
2. ...in no more than 90 lines of C++.
Although I've been thinking about this for a few weeks, as I write this I have not written a line of the code. I'm pretty sure I will achieve 1, and 2 will be... a piece of cake!