查看当前配置 pmset

~ » pmset -g                                                           hans@zzz
System-wide power settings:
Currently in use:
 standby              1
 Sleep On Power Button 1
 womp                 1
 halfdim              1
 hibernatefile        /var/vm/sleepimage
 powernap             0
 gpuswitch            2
 autorestart          0
 networkoversleep     0
 disksleep            10
 sleep                0 (sleep prevented by useractivityd, AddressBookSourceSync, configd)
 autopoweroffdelay    28800
 hibernatemode        0
 autopoweroff         1
 ttyskeepawake        1
 displaysleep         60
 tcpkeepalive         1
 standbydelay         10800

当前默认配置 hibernatemode 0

我们需要配置成 25 存储到磁盘上，并且清空内存，就是开机慢。

要速度快 请设置成 3

下面是官文的说明

• hibernatemode = 0 (binary 0000) by default on supported desktops. The system will not back memory up to
  persistent storage. The system must wake from the contents of memory; the system will lose context on
  power loss. This is, historically, plain old sleep.

• hibernatemode = 3 (binary 0011) by default on supported portables. The system will store a copy of mem-ory memory
  ory to persistent storage (the disk), and will power memory during sleep. The system will wake from
  memory, unless a power loss forces it to restore from disk image.

• hibernatemode = 25 (binary 0001 1001) is only settable via pmset. The system will store a copy of mem-ory memory
  ory to persistent storage (the disk), and will remove power to memory. The system will restore from
  disk image. If you want "hibernation" - slower sleeps, slower wakes, and better battery life, you
  should use this setting.

设置磁盘存储的深度睡眠 pmset -a

sudo pmset -a hibernatemode 25

参考文

• pmset

https://developer.apple.com/legacy/library/documentation/Darwin/Reference/ManPages/man1/pmset.1.html