Benjamin Black benjaminblack

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

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

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

	###########################################
	# IMPORTANT NOTE:
	#
	# As of asuswrt-merlin 380.67 Beta, you
	# can now configure SSL certificates from
	# the Webui, making these instructions
	# unnecessary.
	###########################################

	#
	# Name: nginx-tls.conf
	# Auth: Gavin Lloyd <[email protected]>
	# 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:
	#