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@1duo
1duo / centos.install.cmake.from.source.md
Last active January 27, 2026 14:20
Install CMake on CentOS 7.

Download CMake from: https://cmake.org/download/

wget https://cmake.org/files/v3.12/cmake-3.12.3.tar.gz

Compile from source and install

tar zxvf cmake-3.*
@leesmith
leesmith / simple-git-workflow.md
Last active December 30, 2023 23:37
Simple Git Workflow For Continuous Delivery

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 March 14, 2026 05:20
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