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@paulirish
paulirish / what-forces-layout.md
Last active July 5, 2024 08:26
What forces layout/reflow. The comprehensive list.

What forces layout / reflow

All of the below properties or methods, when requested/called in JavaScript, will trigger the browser to synchronously calculate the style and layout*. This is also called reflow or layout thrashing, and is common performance bottleneck.

Generally, all APIs that synchronously provide layout metrics will trigger forced reflow / layout. Read on for additional cases and details.

Element APIs

Getting box metrics
  • elem.offsetLeft, elem.offsetTop, elem.offsetWidth, elem.offsetHeight, elem.offsetParent
@dvliman
dvliman / gist:267b66ac3a321172fd35
Created January 4, 2015 03:32
linux-kernel-booting-process

GNU/Linux kernel internals

Linux kernel booting process. Part 1.

If you read my previous blog posts, you can note that sometime ago I have started to get involved low-level programming. I wrote some posts about x86_64 assembly programming for Linux. In the same time I started to dive into GNU/Linux kernel source code. It is very interesting for me to understand how low-level things works, how programs runs on my computer, how they located in memory, how kernel manages processes and memory, how network stack works on low-level and many many other things. I decided to write yet another series of posts about GNU/Linux kernel for x86_64.

Note, that I'm not professional kernel hacker and I don't write code for kernel at work, just a hobby. I just like low-level stuff and it is interesting to me how these

@gavinhungry
gavinhungry / nginx-tls.conf
Last active March 11, 2024 14:51
Nginx SSL/TLS configuration for "A+" Qualys SSL Labs rating
#
# Name: nginx-tls.conf
# Auth: Gavin Lloyd <gavinhungry@gmail.com>
# Desc: Nginx SSL/TLS configuration for "A+" Qualys SSL Labs rating
#
# Enables HTTP/2, PFS, HSTS and OCSP stapling. Configuration options not related
# to SSL/TLS are not included here.
#
# Additional tips:
#
@davidbalbert
davidbalbert / gist:6815258
Last active February 29, 2024 16:12
How to install custom SSL certificates on an ASUS RT-N66U running asuswrt-merlin
###########################################
# IMPORTANT NOTE:
#
# As of asuswrt-merlin 380.67 Beta, you
# can now configure SSL certificates from
# the Webui, making these instructions
# unnecessary.
###########################################
@MohamedAlaa
MohamedAlaa / tmux-cheatsheet.markdown
Last active July 4, 2024 17:58
tmux shortcuts & cheatsheet

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname