jboner
/ latency.txt
Last active
November 25, 2024 16:16
Latency Numbers Every Programmer Should Know
This file contains 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 |
l15n
/ Local Branches
Last active
September 17, 2021 16:17
— forked from schacon/gist:942899
Delete all remote branches on your fork `mine` which have already been merged into upstream `origin/master`
This file contains 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
| $ git branch --merged master | | |
| grep -v '*' | | |
| grep -v master | | |
| xargs -L1 | | |
| xargs git branch -d |
mi-lee
/ unlike-delete-hide-facebook-posts.js
Last active
October 17, 2024 12:30
Bulk delete, unlike, hide, or remove Facebook actions (in Activity Feed) by year.
This file contains 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
| // DISCLAIMER: I'VE ONLY RUN THIS SCRIPT ON MY OWN ACCOUNT ONLY. PROCEED/USE WITH RISK! I MADE THIS SCRIPT IN 20 MINUTES SO BE WARNED! | |
| // On the other hand, I've deleted 50,000 comments in a matter of minutes so it's been pretty damn handy | |
| // 1. Go to Activity feed, like facebook.com/<username>/allactivity | |
| // 2. Navigate to specific section of FB, like "Likes and Reactions" or "Comments", | |
| // like https://www.facebook.com/<username>/allactivity?privacy_source=activity_log&log_filter=cluster_<clusterid> | |
| // 3. Navigate to year that you want to batch delete. You may need to scroll a little bit to let it load | |
| // 4. Once you enter this there's no going back!! | |
davecoutts
/ unifi_ubuntu_2004.sh
Last active
October 22, 2024 16:08
Install Ubiquiti Unifi Controller on Ubuntu 20.04
This file contains 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
| # Install Ubiquiti Unifi Controller on Ubuntu 20.04. | |
| # As tested on a fresh install of ubuntu-20.04.1-live-server, August 22nd 2020. | |
| # Thanks to https://gist.github.com/tmuncks for posting the updated install steps. | |
| sudo apt update | |
| sudo apt install --yes apt-transport-https | |
| echo 'deb https://www.ui.com/downloads/unifi/debian stable ubiquiti' | sudo tee /etc/apt/sources.list.d/100-ubnt-unifi.list | |
| sudo wget -O /etc/apt/trusted.gpg.d/unifi-repo.gpg https://dl.ui.com/unifi/unifi-repo.gpg |
bpsib
/ BBC-Radio-HLS.m3u
Last active
November 24, 2024 08:52
— forked from stengland/BBC-Radio.m3u
BBC Radio Streams
This file contains 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
| #EXTM3U | |
| #EXTINF:-1,BBC - Radio 1 | |
| http://as-hls-ww-live.akamaized.net/pool_900/live/ww/bbc_radio_one/bbc_radio_one.isml/bbc_radio_one-audio%3d96000.norewind.m3u8 | |
| #EXTINF:-1,BBC - Radio 1Xtra | |
| http://as-hls-ww-live.akamaized.net/pool_900/live/ww/bbc_1xtra/bbc_1xtra.isml/bbc_1xtra-audio%3d96000.norewind.m3u8 | |
| #EXTINF:-1,BBC - Radio 1Dance | |
| http://as-hls-ww-live.akamaized.net/pool_900/live/ww/bbc_radio_one_dance/bbc_radio_one_dance.isml/bbc_radio_one_dance-audio%3d96000.norewind.m3u8 | |
| #EXTINF:-1,BBC - Radio 1 Anthems (UK Only) | |
| http://as-hls-uk-live.akamaized.net/pool_900/live/uk/bbc_radio_one_anthems/bbc_radio_one_anthems.isml/bbc_radio_one_anthems-audio%3d96000.norewind.m3u8 | |
| #EXTINF:-1,BBC - Radio 2 |