AmilcarArmmand

Initial Requirements (100,000 users/hour):

• Concurrent streams: ~28,000 (assuming 10-minute average watch time)
• Storage needed:
  • Daily Active users (DAU): 2,400,000 (100k/hr)
  • Average video uploaded per user per day: 0.005 videos (0.5 % of DAUs upload a video daily)
  • Average video size: 100 MB (at 1080p resolution, H264 compression)
  • Daily uploads: 2,400,000 x 0.005 = 12,000 videos/day
  • Daily storage for uploads: 12,000 x 100 MB = 1.2 TB/day
  • Annual video uploads: 1.2 TB/day x 365 days = 438 TB/year

AmilcarArmmand

Software Requirements Specification (SRS)

Project Name: CAAT Distributed Storage System for Video Streaming Storage

Focus Component: Fault-Tolerant Design: Streaming continues even if one or more storage nodes fail.

Team Members: Team: Sudo !! (Sudo Bang-Bang)

• Amilcar Armmand - System Architect
• Tiffany Choe - System Architect

AmilcarArmmand

Projects and proposals

• Workshops on foundational info not taught in standard classes
• Create a environment of peer learning in the CS Department through the CS Club and Discord channel for outreach
• BASH (Bourne Again SHell) (bash,zsh,fsh, etc)
• .bashrc, .profile, .zshrc, etc setup
• Tools and managers (zplug)

Topics and Learning Objectives in video lectures

AmilcarArmmand

China's prosperity is built on:

• Industrial foundation during Mao era, with Soviet help, which was the biggest organized industry transfer in history.
• Reform & opening up, building up the biggest foreign-exchange reserve.
• The most direct increase in wealth among Chinese families are actually the property value.
• Housing in its essence is just a wooden or concrete box, its real value exists in the location and services near it (schools, healthcare, transport and job opportunities).
• These property wealth were all backed by China's massive industries, exports and foreign echange reserves.
• China's exports, was because of the industrial foundation and social reforms of the Mao era
• Imports

AmilcarArmmand

How do you POST a JSON file with curl??

You can post a json file with curl like so:

curl -X POST -H "Content-Type: application/json" -d @FILENAME DESTINATION

so for example:

AmilcarArmmand

An animated cheatsheet for smartparens using the example configuration specified here by the smartparens author. Inspired by this tutorial for paredit.

Traversal

C-M-f	sp-forward-sexp
C-M-b	sp-backward-sexp

AmilcarArmmand

AmilcarArmmand

People

:bowtie:	😄 :smile:	😆 :laughing:
😊 :blush:	😃 :smiley:	☺️ :relaxed:
😏 :smirk:	😍 :heart_eyes:	😘 :kissing_heart:
😚 :kissing_closed_eyes:	😳 :flushed:	😌 :relieved:
😆 :satisfied:	😁 :grin:	😉 :wink:
😜 :stuck_out_tongue_winking_eye:	😝 :stuck_out_tongue_closed_eyes:	😀 :grinning:
😗 :kissing:	😙 :kissing_smiling_eyes:	😛 :stuck_out_tongue:

AmilcarArmmand

# Short of learning how to actually configure OSX, here's a hacky way to use
# GNU manpages for programs that are GNU ones, and fallback to OSX manpages otherwise
alias man='_() { echo $1; man -M $(brew --prefix)/opt/coreutils/libexec/gnuman $1 1>/dev/null 2>&1;  if [ "$?" -eq 0 ]; then man -M $(brew --prefix)/opt/coreutils/libexec/gnuman $1; else man $1; fi }; _'

AmilcarArmmand

# see https://www.topbug.net/blog/2013/04/14/install-and-use-gnu-command-line-tools-in-mac-os-x/

# core
brew install coreutils

# key commands
brew install binutils
brew install diffutils
brew install ed --default-names
brew install findutils --with-default-names