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From: Jolly Roger <jollyroger@pobox.com>
Newsgroups: comp.sys.mac.system
Subject: Re: Wake from sleep takes 30 - 40 s. since 10.13.6 update.
Date: 12 Aug 2018 18:27:56 GMT
Organization: People for the Ethical Treatment of Pirates
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On 2018-08-12, Alan Browne <bitbucket@blackhole.com> wrote:
> On 2018-08-07 11:28, Jolly Roger wrote:
>> On 2018-08-07, Alan Browne <bitbucket@blackhole.com> wrote:
>>>
>>> I updated this iMac to 10.13.6 over a week ago.
>>>
>>> Since then, when I hit the keyboard or trackpad to wake it, it takes 30
>>> - 40 s. to get to the login screen (otherwise black).
>>>
>>> External drives do power up immediately on hitting the keyboard or trackpad.
>>>
>>> Before this update, wake from sleep was anywhere from instant-ish to 5 -
>>> 10 s. in the worst case.
>>>
>>> The MBA's at work, updated, are still waking quickly.
>> 
>> Just for kicks, I would try resetting the SMC and PRAM:
>> 
>> <https://support.apple.com/HT201295>
>> <https://support.apple.com/HT204063>
>
> No effect.  Mac took nearly a minute from time I hit the keypad 
> (external drives came on immediately) to the login screen.

I think my next diagnostic step would be to run another test, where I
let the machine sleep for a good amount of time to make sure all
activity has stopped for a length of time, then make note of the precise
time I try to wake the machine, let it wake up, then look at the system
log (both the system.log file and the command-line "log show" facility).

Note that you must execute "log show" with sudo, and you can limit the
time range of log messages with the log show --start and --end
command-line switches to the time span of interest (from a few minutes
before you woke the machine to a minute or two later), like this:

sudo log show --start "2018-08-12 11:05:00" --end "2018-08-12 11:10:00" 

-- 
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JR