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nvprof - NVCC Profiler

It is Nvidia's Profiler, profiles any executable including CUDA programs.

How to use it?

nvprof ./executable

In case if you want the obsolute url /usr/local/cuda/bin/nvprof or /usr/local/cuda-<MAJOR.minor>/bin/nvprof where MAJOR.minor is your CUDA version installed.

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# If you work with git, you've probably had that nagging sensation of not knowing what branch you are on. Worry no longer!

export PS1="\\w:\$(git branch 2>/dev/null | grep '^*' | colrm 1 2)\$ "

# This will change your prompt to display not only your working directory but also your current git branch, if you have one. Pretty nifty!

# ~/code/web:beta_directory$ git checkout master
# Switched to branch "master"
# ~/code/web:master$ git checkout beta_directory
# Switched to branch "beta_directory"

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/**
 * OpenCV video streaming over TCP/IP
 * Client: Receives video from server and display it
 * by Steve Tuenkam
 */

#include "opencv2/opencv.hpp"
#include <sys/socket.h> 
#include <arpa/inet.h>
#include <unistd.h>

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FFmpeg Cheat Sheet for 360º video

Brought to you by Headjack

 
FFmpeg is one of the most powerful tools for video transcoding and manipulation, but it's fairly complex and confusing to use. That's why I decided to create this cheat sheet which shows some of the most often used commands.

 
Let's start with some basics:

• ffmpeg calls the FFmpeg application in the command line window, could also be the full path to the FFmpeg binary or .exe file

chichunchen

FFmpeg Cheat Sheet for 360º video

Brought to you by Headjack

 
FFmpeg is one of the most powerful tools for video transcoding and manipulation, but it's fairly complex and confusing to use. That's why I decided to create this cheat sheet which shows some of the most often used commands.

 
Let's start with some basics:

• ffmpeg calls the FFmpeg application in the command line window, could also be the full path to the FFmpeg binary or .exe file

chichunchen

# clang version 3.4 (tags/RELEASE_34/final)
# Intel(R) Core(TM) i5-3470 CPU @ 3.20GHz
spinlock 1:	3925ms
spinlock 2:	25665ms
spinlock 3:	27722ms
spinlock 4:	42727ms
std::mutex 1:	5526ms
std::mutex 2:	17672ms
std::mutex 3:	31038ms
std::mutex 4:	36890ms

chichunchen

# Default termtype. If the rcfile sets $TERM, that overrides this value.
set -g default-terminal screen-256color

# support logging out and back in
set -g update-environment "SSH_ASKPASS SSH_AUTH_SOCK SSH_AGENT_PID SSH_CONNECTION"

# pbcopy support
set-option -g default-command "reattach-to-user-namespace -l bash"

# vi mode

chichunchen

#Simple Authentication with Bcrypt

This tutorial is for adding authentication to a vanilla Ruby on Rails app using Bcrypt and has_secure_password.

The steps below are based on Ryan Bates's approach from Railscast #250 Authentication from Scratch (revised).

You can see the final source code here: repo. I began with a stock rails app using rails new gif_vault

##Steps

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### INSTALLATION NOTES ###
# 1. Install Homebrew (https://github.com/mxcl/homebrew)
# 2. brew install zsh
# 3. Install OhMyZsh (https://github.com/robbyrussell/oh-my-zsh)
# 4. brew install reattach-to-user-namespace --wrap-pbcopy-pbpaste && brew link reattach-to-user-namespace
# 5. Install iTerm2
# 6. In iTerm2 preferences for your profile set:
#      Character Encoding: Unicode (UTF-8)
#      Report Terminal Type: xterm-256color
# 7. Put itunesartist and itunestrack into PATH