Sam Gozman samgozman

If you're using a high-end bluetooth headset on your Macbook Pro it's likely your mac is using an audio codec which favors battery efficiency over high quality. This results in a drastic degradation of sound, the SBC codec is the likely culprit, read more about it here.

Find out what codec you're using

Play a song on your headphones
Option (⌥) click the Bluetooth button at the top of your screen
If you're using AAC or aptX, you can stop here—those are the highest quality codecs.

Change your codec to AAC or aptX

Example Queries

1h active keys by location:

sum(max(increase(shadowsocks_data_bytes{access_key!=""} [1h])) by (access_key, location) > bool 0) by (location)

1h usage by location:

sum(increase(shadowsocks_data_bytes{dir=~"c<p|p>t"} [1h])) by (location)

Results

Server	Price*	CPU (1 thread)	CPU (4 threads)	IO
Scaleway Start1-XS Atom C3955, 25G NVMe	$4	21 sec P₉₅ = 2.1ms	21 sec P₉₅ = 14ms	🚗 653 IO/s, 10 Mb/sec P₉₅ = 0.40ms
Scaleway VC1-S Atom C2750, 50G SSD	$4	46 sec ⚠️ P₉₅ = 4.6ms	23 sec P₉₅ = 14ms	🚲 289 IO/s, 4.5 Mb/sec P₉₅ = 0.39ms
Hetzner CPX11 AMD EPYC, 40G SSD	$5	20 sec P₉₅ = 3.2ms	9.6 sec P₉₅ = 11ms	✈️ 3656 IO/s, 57 Mb/sec P₉₅ = 0.29ms
Hetzner CX21 Intel Xeon, 40G SSD	$6	24 sec P₉₅ = 2.8ms	12.5 sec P₉₅ = 11ms	🚤 1946 IO/s, 30 Mb/sec P₉₅ = 0.97ms
AWS t2.micro 1G*Intel E5-2676 v3 2.4

Exporting (iCloud) Keychain and Safari credentials to a CSV file

Update (October 2021)

Exporting password + one-time code data from iCloud Keychain is now officially supported in macOS Monterey and Safari 15 (for Monterey, Big Sur, and Catalina). You can access it in the Password Manager’s “gear” icon (System Preferences > Passwords on Monterey, and Safari > Passwords everywhere else), or via the File > Export > Passwords... menu item). You shouldn't need to hack up your own exporter anymore.

Original, Obsolete Content (2014)

After my dad died, I wanted to be able to have access any of his online accounts going forward. My dad was a Safari user and used iCloud Keychain to sync his credentials across his devices. I don’t want to have to keep an OS X user account around just to access his accounts, so I wanted to export his credentials to a portable file.

How to configure multiple deploy keys for different private github repositories on the same computer without using ssh-agent

Let's say alice is a github.com user, with 2 or more private repositories repoN. For this example we'll work with just two repositories named repo1 and repo2

https://github.com/alice/repo1

https://github.com/alice/repo2

You need to be to pull from these repositories without entering a passwords probably on a server, or on multiple servers.

	#!/usr/bin/env bash

	# =======================================================================================
	#
	# A simple script to test Synology NAS disk speed with hdparm, dd and fio.
	#
	# How to use:
	#
	# 1. Save synology_disk_benchmark.sh and xfio.conf to your Synology NAS
	# 2. Make it executable: chmod +x synology_disk_benchmark.sh

	# -- coding: utf-8 --
	# Портирован с Java по мотивам http://www.algorithmist.ru/2010/12/porter-stemmer-russian.html
	import re

	class Porter:
	PERFECTIVEGROUND = re.compile(u"((ив\|ивши\|ившись\|ыв\|ывши\|ывшись)\|((?<=[ая])(в\|вши\|вшись)))$")
	REFLEXIVE = re.compile(u"(с[яь])$")
	ADJECTIVE = re.compile(u"(ее\|ие\|ые\|ое\|ими\|ыми\|ей\|ий\|ый\|ой\|ем\|им\|ым\|ом\|его\|ого\|ему\|ому\|их\|ых\|ую\|юю\|ая\|яя\|ою\|ею)$")
	PARTICIPLE = re.compile(u"((ивш\|ывш\|ующ)\|((?<=[ая])(ем\|нн\|вш\|ющ\|щ)))$")
	VERB = re.compile(u"((ила\|ыла\|ена\|ейте\|уйте\|ите\|или\|ыли\|ей\|уй\|ил\|ыл\|им\|ым\|ен\|ило\|ыло\|ено\|ят\|ует\|уют\|ит\|ыт\|ены\|ить\|ыть\|ишь\|ую\|ю)\|((?<=[ая])(ла\|на\|ете\|йте\|ли\|й\|л\|ем\|н\|ло\|но\|ет\|ют\|ны\|ть\|ешь\|нно)))$")