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Matheus Portela matheusportela

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@nathansmith
nathansmith / web-design-development-learning-resources.md
Last active October 12, 2024 17:08
Resources for learning web design & front-end development
@jboner
jboner / latency.txt
Last active November 15, 2024 14:00
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
@Integralist
Integralist / 0. Ruby Meta Programming - spells covered.md
Last active October 7, 2024 02:15
Ruby Meta Programming
  • Dynamic Dispatch
  • Dynamic Method
  • Ghost Methods
  • Dynamic Proxies
  • Blank Slate
  • Kernel Method
  • Flattening the Scope (aka Nested Lexical Scopes)
  • Context Probe
  • Class Eval (not really a 'spell' more just a demonstration of its usage)
  • Class Macros
@mlanett
mlanett / rails http status codes
Last active November 4, 2024 18:04
HTTP status code symbols for Rails
HTTP status code symbols for Rails
Thanks to Cody Fauser for this list of HTTP responce codes and their Ruby on Rails symbol mappings.
Status Code Symbol
1xx Informational
100 :continue
101 :switching_protocols
102 :processing
@christofluethi
christofluethi / gist:646ae60d797a46a706a5
Last active April 1, 2024 22:10
Convert m4a to mp3 on OS X command line using ffmpeg
brew update
brew link yasm
brew link x264
brew link lame
brew link xvid
brew install ffmpeg
ffmpeg wiki:
https://trac.ffmpeg.org/wiki/Encode/MP3
@rondy
rondy / Effective_Engineer.md
Last active November 12, 2024 19:06

FWIW: I (@rondy) am not the creator of the content shared here, which is an excerpt from Edmond Lau's book. I simply copied and pasted it from another location and saved it as a personal note, before it gained popularity on news.ycombinator.com. Unfortunately, I cannot recall the exact origin of the original source, nor was I able to find the author's name, so I am can't provide the appropriate credits.

Effective Engineer - Notes

What's an Effective Engineer?

@Brainiarc7
Brainiarc7 / build-tensorflow-from-source.md
Last active September 9, 2024 22:48
Build Tensorflow from source, for better performance on Ubuntu.

Building Tensorflow from source on Ubuntu 16.04LTS for maximum performance:

TensorFlow is now distributed under an Apache v2 open source license on GitHub.

On Ubuntu 16.04LTS+:

Step 1. Install NVIDIA CUDA:

To use TensorFlow with NVIDIA GPUs, the first step is to install the CUDA Toolkit as shown:

@matheusportela
matheusportela / .zshrc or .bash_profile
Created January 6, 2018 20:53
Environment variables for virtualenvwrapper in Mac OS X with Python 3
$ brew install python3
$ pip3 install virtualenv virtualenvwrapper
$ vim .bash_profile # or .zshrc
# Virtualenv variables
export WORKON_HOME=/Users/portela/.virtualenvs
export VIRTUALENVWRAPPER_PYTHON=$(which python3)
source /usr/local/bin/virtualenvwrapper.sh