most of these require logout/restart to take effect
# Enable character repeat on keydown
defaults write -g ApplePressAndHoldEnabled -bool false
# Set a shorter Delay until key repeat
dperini
/ regex-weburl.js
Last active
October 24, 2025 21:14
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| // | |
| // Regular Expression for URL validation | |
| // | |
| // Author: Diego Perini | |
| // Created: 2010/12/05 | |
| // Updated: 2018/09/12 | |
| // License: MIT | |
| // | |
| // Copyright (c) 2010-2018 Diego Perini (http://www.iport.it) | |
| // |
(The below text is licensed with CC0, which means that if you want to use or translate it, that is OK by me.)
Ok, I geeked out, and this is probably more information than you need. But it completely answers the question. Sorry. ☺
Locally, I'm at this commit:
$ git show
commit d6cd1e2bd19e03a81132a23b2025920577f84e37
Author: jnthn <[email protected]>
Date: Sun Apr 15 16:35:03 2012 +0200
g3d
/ gist:2709563
Last active
May 15, 2025 07:00
— forked from saetia/gist:1623487
Clean Install – OS X 10.11 El Capitan
#Mac OS X
jboner
/ latency.txt
Last active
November 17, 2025 14:46
Latency Numbers Every Programmer Should Know
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| 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 |
dergachev
/ GIF-Screencast-OSX.md
Last active
October 31, 2025 16:45
OS X Screencast to animated GIF
willurd
/ web-servers.md
Last active
November 10, 2025 16:13
Big list of http static server one-liners
Each of these commands will run an ad hoc http static server in your current (or specified) directory, available at http://localhost:8000. Use this power wisely.
$ python -m SimpleHTTPServer 8000
aras-p
/ preprocessor_fun.h
Last active
November 16, 2025 17:39
Things to commit just before leaving your job
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| // Just before switching jobs: | |
| // Add one of these. | |
| // Preferably into the same commit where you do a large merge. | |
| // | |
| // This started as a tweet with a joke of "C++ pro-tip: #define private public", | |
| // and then it quickly escalated into more and more evil suggestions. | |
| // I've tried to capture interesting suggestions here. | |
| // | |
| // Contributors: @r2d2rigo, @joeldevahl, @msinilo, @_Humus_, | |
| // @YuriyODonnell, @rygorous, @cmuratori, @mike_acton, @grumpygiant, |
stefanschmidt
/ osx-software-update-urls.txt
Created
January 4, 2014 01:22
URLs of the index files used by the software update client on OS X
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| 10.3 (Panther): http://swscan.apple.com/scanningpoints/scanningpointX.xml | |
| 10.4 (Tiger): http://swscan.apple.com/content/catalogs/index-1.sucatalog | |
| 10.5 (Leopard): http://swscan.apple.com/content/catalogs/others/index-leopard.merged-1.sucatalog | |
| 10.6 (Snow Leopard): http://swscan.apple.com/content/catalogs/others/index-leopard-snowleopard.merged-1.sucatalog | |
| 10.7 (Lion): http://swscan.apple.com/content/catalogs/others/index-lion-snowleopard-leopard.merged-1.sucatalog | |
| 10.8 (Mountain Lion): http://swscan.apple.com/content/catalogs/others/index-mountainlion-lion-snowleopard-leopard.merged-1.sucatalog | |
| 10.9 (Mavericks): http://swscan.apple.com/content/catalogs/others/index-10.9-mountainlion-lion-snowleopard-leopard.merged-1.sucatalog | |
| 10.9 (Mavericks incl. seeds): http://swscan.apple.com/content/catalogs/others/index-10.9seed-10.9-mountainlion-lion-snowleopard-leopard.merged-1.sucatalog |
seboudry
/ latency.markdown
Last active
September 13, 2025 12:14
— forked from hellerbarde/latency.markdown
L1 cache reference ......................... 0.5 ns
Branch mispredict ............................ 5 ns on recent CPU
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 µs
Send 2K bytes over 1 Gbps network ....... 20,000 ns = 20 µs
SSD random read ........................ 150,000 ns = 150 µs
Read 1 MB sequentially from memory ..... 250,000 ns = 250 µs 4X memory
OlderNewer