How Discord Reduced Traffic Bandwidth by 40%
In this video we are going to learn how Discord managed to reduce their traffic bandwidth by 40%.
Edit:
at 00:02:20 - the encoding for a and c are swapped. A was supposed to be 01 and c just 1. Thank you @fgardt for catching this.
References:
Original discord article - / discord
LZ77 Compression - https://learn.microsoft.com/en-us/ope...
Huffman coding - https://www.geeksforgeeks.org/huffman...
zlib - https://github.com/madler/zlib
zstandards - http://facebook.github.io/zstd/
dictionary compression - https://en.wikibooks.org/wiki/Data_Co...
Timeline:
00:00:00 - intro
00:00:16 - Discord comm service intro
00:00:26 - What is Zlib
00:00:44 - LZ77 Compression
00:01:47 - Huffman coding
00:02:38 - zstandard
00:03:05 - Dictionary compression
00:03:40 - Initial experiment
00:04:40 - Streaming compression
00:05:46 - passive_update_v2
00:06:35 - further optimization attempts
00:07:34 - Implementation and rollout
00:07:55 - Ending
Video credits:
Video by Pressmaster from Pexels: https://www.pexels.com/video/digital-...
Deploying code - Video by olia danilevich from Pexels: https://www.pexels.com/video/a-man-us...
ptsd - Video by MART PRODUCTION from Pexels: https://www.pexels.com/video/a-woman-...
forgetting someone' name - • When You Forget Someone’s Name
Music credit:
♪ [non copyright music] Lofi Type Beat - Saturday Morning | aesthetic lofi music / Lofiru Link : [
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