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@lubien
lubien / stickers-downloader.js
Last active Jun 12, 2022
Download all visible telegram stickers images
View stickers-downloader.js
// How to download telegram sticker images
/*
1. Go to Telegram Web;
2. Open console (F12);
3. Paste the code below in the console and press Enter;
4. Open your stickers menu and make sure you see the sticker pack you want to download (so Telegram will load it).
5. At the console paste and run "downloadStickers()" any time you want to download a pack.
6. [Convert .webm to another format](http://www.freewaregenius.com/convert-webp-image-format-jpg-png-format/);
7. Happy hacking.
@richistron
richistron / squash.sh
Created Sep 9, 2014
Merge and clean history
View squash.sh
#! /bin/bash
# move to your local branch
git checkout local_branch
# pull the remotes
git fetch --all
# merge and squash
git merge origin/dirty_branch --squash
@jboner
jboner / latency.txt
Last active Aug 7, 2022
Latency Numbers Every Programmer Should Know
View latency.txt
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