Skip to content

Instantly share code, notes, and snippets.

View ideepika's full-sized avatar
🎯
Focusing

Deepika Upadhyay ideepika

🎯
Focusing
View GitHub Profile
@speric
speric / gist:6096965
Created July 28, 2013 01:20
vimtutor Lesson Summaries
Lesson 1 SUMMARY
1. The cursor is moved using either the arrow keys or the hjkl keys.
h (left) j (down) k (up) l (right)
2. To start Vim from the shell prompt type: vim FILENAME <ENTER>
3. To exit Vim type: <ESC> :q! <ENTER> to trash all changes.
OR type: <ESC> :wq <ENTER> to save the changes.
@jboner
jboner / latency.txt
Last active March 8, 2026 07:16
Latency Numbers Every Programmer Should Know
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
@CristinaSolana
CristinaSolana / gist:1885435
Created February 22, 2012 14:56
Keeping a fork up to date

1. Clone your fork:

git clone git@github.com:YOUR-USERNAME/YOUR-FORKED-REPO.git

2. Add remote from original repository in your forked repository:

cd into/cloned/fork-repo
git remote add upstream git://github.com/ORIGINAL-DEV-USERNAME/REPO-YOU-FORKED-FROM.git
git fetch upstream
@CocoaBeans
CocoaBeans / gdbinit
Created February 21, 2012 21:58
.gdbinit - A user-friendly gdb configuration file
# INSTALL INSTRUCTIONS: save as ~/.gdbinit
#
# DESCRIPTION: A user-friendly gdb configuration file.
#
# REVISION : 7.3 (16/04/2010)
#
# CONTRIBUTORS: mammon_, elaine, pusillus, mong, zhang le, l0kit,
# truthix the cyberpunk, fG!, gln
#
# FEEDBACK: https://www.reverse-engineering.net
@jaseemabid
jaseemabid / git tutorials.md
Last active January 13, 2026 15:29 — forked from netroy/git tutorials.md
Awesome git tutorials I am finding here and there