jboner

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

richistron

#! /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

lubien

// 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.

andrebrait

Here is the best setup (I think so :D) for K-series Keychron keyboards on Linux.

Note: many newer Keychron keyboards use QMK as firmware and most tips here do not apply to them. Maybe the ones related to Bluetooth can be useful, but everything related to Apple's keyboard module (hid_apple) on Linux, won't work. As far as I know, all QMK-based boards use the hid_generic module instead. Examples of QMK-based boards are: Q, Q-Pro, V, K-Pro, etc.

Most of these commands have been tested on Ubuntu 20.04 and should also work on most Debian-based distributions. If a command happens not to work for you, take a look in the comment section.

Make Fn + F-keys work (NOT FOR QMK-BASED BOARDS)

Older Keychron keyboards (those not based on QMK) use the hid_apple driver on Linux, even in the Windows/Android mode, both in Bluetooth and Wired modes.