AlekseyMko AlekseyMko

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

Latency numbers every programmer should know

L1 cache reference ......................... 0.5 ns
Branch mispredict ............................ 5 ns
L2 cache reference ........................... 7 ns
Mutex lock/unlock ........................... 25 ns
Main memory reference ...................... 100 ns             
Compress 1K bytes with Zippy ............. 3,000 ns  =   3 µs
Send 2K bytes over 1 Gbps network ....... 20,000 ns  =  20 µs
SSD random read ........................ 150,000 ns  = 150 µs

Read 1 MB sequentially from memory ..... 250,000 ns = 250 µs

Latency numbers every programmer should know

L1 cache reference ......................... 0.5 ns
Branch mispredict ............................ 5 ns
L2 cache reference ........................... 7 ns
Mutex lock/unlock ........................... 25 ns
Main memory reference ...................... 100 ns             
Compress 1K bytes with Zippy ............. 3,000 ns  =   3 µs
Send 2K bytes over 1 Gbps network ....... 20,000 ns  =  20 µs
SSD random read ........................ 150,000 ns  = 150 µs

Read 1 MB sequentially from memory ..... 250,000 ns = 250 µs

	/*

	Reddit DailyProgrammer Challenge #180 -- Tamagotchi Emulator
	By Aerospark12 (aka Luke)

	I may have gone a little bit overboard with this one, but I've got fond memories of tamagotchi from when
	I was but a wee laddie, I've always wanted to make something like this, and I really enjoy graphics and animation

	The design of this is partially inspirte by how I understand "low level" ICs to work, as an homage to the real tamagotchi

	myUser=`whoami`
	SYNO_USER=`psql synofoto -t -c "select id from user_info where name='$myUser'"`
	for i in `find 2017 -iname \*.mov -type f \| grep -v eaDir \| grep -v "_3"`; do
	fname=$(dirname ${i})/@eaDir/$(basename ${i})/SYNOPHOTO_FILM_H.mp4;
	foldername=/$(dirname $i)
	filename=$(basename $i)
	video_id=`psql synofoto -t -c "select video.id from video join unit on unit.id = video.id where unit.id_folder = (select id from folder where name='$foldername' and id_user=$SYNO_USER) and unit.filename='$filename'"`
	video_convert_present=`psql synofoto -t -c "select id_unit from video_convert where id_unit=$video_id"`

	if [ -z "$video_convert_present" ]; then