Bryan Jones bdkjones

A Mac developer, aerobatic CFI, and finance MBA who flies airplanes upside down competitively

gdavis / gist:6670468

Last active January 11, 2024 14:24

Xcode Build Variables List. Adopted from: http://stackoverflow.com/questions/6910901/canonical-list-of-xcode-environment-variables

	ACTION
	AD_HOC_CODE_SIGNING_ALLOWED
	ALTERNATE_GROUP
	ALTERNATE_MODE
	ALTERNATE_OWNER
	ALWAYS_SEARCH_USER_PATHS
	ALWAYS_USE_SEPARATE_HEADERMAPS
	APPLE_INTERNAL_DEVELOPER_DIR
	APPLE_INTERNAL_DIR
	APPLE_INTERNAL_DOCUMENTATION_DIR

bdkjones / safesleep.txt

Created November 12, 2012 00:00

Disabling Safe Sleep After November, 2012

	In early November, 2012, Apple issued a graphics update for all mid-2012 MacBooks. In a continued streak of stupidity, however, this update forces your Mac to use "Safe Sleep". This means that the entire contents of your RAM is written to your disk every time you put your Mac to sleep.

	This is retarded on the scale of the Titanic's navigational plan for two reasons:

	1) Your Mac likely has 8 or 16GB of RAM. This is a ton of wasted disk space; especially on MacBook Airs that ship with only 256GB SSDs to begin with.

	2) SSDs wear out as you write to them. Each cell of a SSD can only be written to a certain number of times before it becomes read-only. If you put your computer to sleep many times a day, OS X is slowly but surely destroying your SSD with unneeded write cycles.

	Worst of all, the graphics update makes it IMPOSSIBLE to turn off safe sleep using the standard approach you'll find on Google: