system design

http://highscalability.com/blog/2011/1/26/google-pro-tip-use-back-of-the-envelope-calculations-to-choo.html

http://dsrg.pdos.csail.mit.edu/papers/

https://zguide.zeromq.org/docs/chapter5/

https://gist.github.com/jboner/2841832

https://gist.github.com/hellerbarde/2843375

https://www.youtube.com/watch?v=zbhrtO2gapY

https://www.youtube.com/watch?v=modXC5IWTJI

https://www.youtube.com/watch?v=-W9F__D3oY4

https://www.youtube.com/watch?v=pme_n2zQiDQ

https://www.youtube.com/watch?v=PE4gwstWhmc

https://www.youtube.com/watch?v=hnpzNAPiC0E

https://www.youtube.com/watch?v=nUcO7n4hek4

https://www.youtube.com/watch?v=tpspO9K28PM

https://www.youtube.com/watch?v=Y6Ev8GIlbxc

https://www.youtube.com/playlist?list=PLeKd45zvjcDFUEv_ohr_HdUFe97RItdiB

https://www.youtube.com/watch?v=-W9F__D3oY4&t=1090s

https://www.youtube.com/watch?v=w5WVu624fY8

https://www.youtube.com/watch?v=YpaWA-XRw

https://www.youtube.com/watch?v=5bJi7k-y1Lo

https://www.youtube.com/watch?v=nYMX-ArjYz8

https://www.youtube.com/watch?v=UH7wkvcf0ys&t=644s

https://github.com/donnemartin/system-design-primer