Ehtesh Choudhury shurane

Enable Processor Boost Mode Control in Windows

Disable Turbo Boost to Reduce Power Consumption and Heat

Why Do We Need It?

The thing is if your laptop cpu is getting really hot and you are trying to undervolt it then chances are 99% that there are no method to do so. I have also tried to do undervolt my Ryzen 7 5800H but no luck. Because the bios doesn't allow that much control over the cpu. I don't know the specific reasons for the manufactures to restrict such a great thing. But with this you can disable the Turbo Boost. While this might sounds stupid but trust me you won't see a massive difference in performance after turned it off.

When You should Do It?

Enable PCIe 3.0 speeds for NVMe SSDs on Dell OptiPlex 3060

Out of the box, any M.2 NVMe SSDs connected to the Dell OptiPlex 3060 runs at PCIe Gen 2.0 speeds (Max 5 GT/s; 2 GB/s) so the speed tests look like this:

However, after this BIOS mod, the SSD can reach PCIe Gen 3.0 speeds (Max 8 GT/s; 3.9 GB/s) so the speed tests look like this:

Structured logs are way better than normal logs for a whole bunch of reasons, but they can sometimes be a pain to read in the shell. Take this logline for example:

{"erlang_pid":"#PID<0.1584.0>","level":"error","message":"Got error when retry: :econnrefused, will retry after 1535ms. Have retried 2 times, :infinity times left.","module":"","release":"c2ef629cb357c136f529abec997426d6d58de485","timestamp":"2019-12-17T19:22:11.164Z"}

This format is hard for a human to parse. How about this format instead?

error | 2019-12-17T19:21:02.944Z | Got error when retry: :econnrefused, will retry after 1648ms. Have retried 2 times, :infinity times left.

Pixelbook or Pixel Slate Setup

Partly updated June 2023

General caution: Chrome OS is a secure OS by design, but this has at least one key consequence. If you change your Google account password, you will still be required to enter the old password the next time you access each Chrome OS device. Devices are encrypted with that password, so the OS needs to decrypt using the old password then re-encrypt using the new one. If you forget your old password you will lose access to your Chrome OS device data. As always, make sure you keep backups up to date.

Fast User Switching

If you have multiple Chrome OS accounts (Say, work and play), you can quickly sitch between them without logging out:

Regular Expression Engine Comparison Chart

Many different applications claim to support regular expressions. But what does that even mean?

Well there are lots of different regular expression engines, and they all have different feature sets and different time-space efficiencies.

The information here is just copied from: http://regular-expressions.mobi/refflavors.html

npm Users By Downloads (git.io/npm-top)

npm users sorted by the monthly downloads of their modules, for the range May 6, 2018 until Jun 6, 2018.

Metrics are calculated using top-npm-users.

#	User	Downloads

	#####################
	#
	# Use this with or without the .gitattributes snippet with this Gist
	# create a fixle.sh file, paste this in and run it.
	# Why do you want this ? Because Git will see diffs between files shared between Linux and Windows due to differences in line ending handling ( Windows uses CRLF and Unix LF)
	# This Gist normalizes handling by forcing everything to use Unix style.
	#####################


	# Fix Line Endings - Force All Line Endings to LF and Not Windows Default CR or CRLF

	Originall From: Posted 2015-05-29 http://ubwg.net/b/full-list-of-ffmpeg-flags-and-options

	This is the complete list that’s outputted by ffmpeg when running ffmpeg -h full.

	usage: ffmpeg [options] [[infile options] -i infile]… {[outfile options] outfile}…

	Getting help:
	-h — print basic options
	-h long — print more options
	-h full — print all options (including all format and codec specific options, very long)

	# The initial version
	if [ ! -f .env ]
	then
	export $(cat .env \| xargs)
	fi

	# My favorite from the comments. Thanks @richarddewit & others!
	set -a && source .env && set +a

	vm_infos = `vboxmanage list vms`

	puts 'Port Forwardings:'
	puts '---------------------------------'
	vm_infos.each_line do \|vm_info\|

	vm_name = vm_info.scan(/\"(.*)\"/)
	vm_id = vm_info.scan(/.{(.)}/).join('')

	vm_detail_info = `vboxmanage showvminfo #{vm_id}`