m1 关不掉的小憩休眠时疯狂耗电

之前没注意，昨天发现一晚上 mbp m1 待机耗了 10% 的电。pmset -g stats 查到了数百个唤醒。

TL;DR 执行 sudo pmset -b powernap 0 后一晚还是 100%

研究了好一会，发现系统的一个巨坑，是这样：

官方支持说有「启用电能小憩」选项，但事实上 arm 芯片的没有，大概是苹果对功耗太自信了？
不仅没有，「唤醒以供网络访问」选项底下的描述非常有误导性，听起来很像「小憩」。
让人误以为「电能小憩」和「唤醒以供网络访问」合并了。其实并没有！小憩默认始终开启。
「唤醒以供网络访问」真正含义是：休眠时被访问则可以唤醒以提供服务。比如网络共享。来源

执行 pmset -g custom 查看电源设置，可以看到 powernap 始终是打开的。在 x86 尝试后发现这个就是「电池小憩」，而 womp 才是「唤醒以供网络访问」。

所以找到元凶了，一行命令干掉它：sudo pmset -b powernap 0 - 在电池供电下关闭小憩如果还不满意可以执行 sudo pmset -b tcpkeepalive 0 - 彻底干掉网络，但是 find my mac 也失效了。

给个对照：

最后看一下两个版本描述的区别（ m1 是 mac13 ，x86 是黑苹果 mac12 ）： diff

a66243766

2023-03-16 10:18:31 +08:00

@Chenhe 这是我昨天把插排电源关闭，只连着显示器的 db2c 蓝牙关闭，磁吸口拔掉，拓展坞拔掉，后的结果

2023-03-16 00:56:19 +0800 Sleep Entering Sleep state due to 'Clamshell Sleep':TCPKeepAlive=active Using Batt (Charge:83%) 5677 secs
2023-03-16 02:30:56 +0800 DarkWake DarkWake from Deep Idle [CDN] : due to AOP.OutboxNotEmpty spu_queue_overflow_ep42/ Using BATT (Charge:83%) 38 secs
2023-03-16 02:31:34 +0800 Sleep Entering Sleep state due to 'Maintenance Sleep':TCPKeepAlive=active Using Batt (Charge:83%) 5665 secs
2023-03-16 04:05:59 +0800 DarkWake DarkWake from Deep Idle [CDN] : due to AOP.OutboxNotEmpty spu_queue_overflow_ep42/ Using BATT (Charge:83%) 10 secs
2023-03-16 04:06:09 +0800 Sleep Entering Sleep state due to 'Maintenance Sleep':TCPKeepAlive=active Using Batt (Charge:82%) 5676 secs
2023-03-16 05:40:45 +0800 DarkWake DarkWake from Deep Idle [CDN] : due to AOP.OutboxNotEmpty spu_queue_overflow_ep42/ Using BATT (Charge:82%) 12 secs
2023-03-16 05:40:57 +0800 Sleep Entering Sleep state due to 'Maintenance Sleep':TCPKeepAlive=active Using Batt (Charge:81%) 1550 secs
2023-03-16 06:06:47 +0800 DarkWake DarkWake from Deep Idle [CDN] : due to NUB.SPMISw3IRQ nub-spmi0.0x02 rtc/Maintenance Using BATT (Charge:81%) 8 secs
2023-03-16 06:06:55 +0800 Sleep Entering Sleep state due to 'Maintenance Sleep':TCPKeepAlive=active Using Batt (Charge:81%) 5661 secs
2023-03-16 07:41:16 +0800 DarkWake DarkWake from Deep Idle [CDN] : due to AOP.OutboxNotEmpty spu_queue_overflow_ep42/ Using BATT (Charge:81%) 13 secs
2023-03-16 07:41:29 +0800 Sleep Entering Sleep state due to 'Maintenance Sleep':TCPKeepAlive=active Using Batt (Charge:80%) 5667 secs
2023-03-16 09:15:56 +0800 DarkWake DarkWake from Deep Idle [CDN] : due to AOP.OutboxNotEmpty spu_queue_overflow_ep42/ Using BATT (Charge:80%) 15 secs
2023-03-16 09:16:11 +0800 Sleep Entering Sleep state due to 'Maintenance Sleep':TCPKeepAlive=active Using Batt (Charge:79%) 3182 secs
2023-03-16 10:09:13 +0800 Wake Wake from Deep Idle [CDNVA] : due to SMC.OutboxNotEmpty smc.70070000 lid/HID Activity Using BATT (Charge:79%