Re: kern/60315: monotonic clock with or without time suspended

["Taylor R Campbell via gnats" <gnats-admin%NetBSD.org@localhost>]

The following reply was made to PR kern/60315; it has been noted by GNATS.

From: Taylor R Campbell <riastradh%NetBSD.org@localhost>
To: gnats-bugs%NetBSD.org@localhost, netbsd-bugs%NetBSD.org@localhost
Cc: 
Subject: Re: kern/60315: monotonic clock with or without time suspended
Date: Mon, 8 Jun 2026 13:39:59 +0000

 This is a multi-part message in MIME format.
 --=_NC1g7Zx04aXuOv/BTjb2XxgNiNEdj0K7
 
 [a brief lesson on why actual authoritative references are important
 and why hearsay is inadmissible as evidence]
 
 --=_NC1g7Zx04aXuOv/BTjb2XxgNiNEdj0K7
 Content-Type: message/rfc822
 Content-Disposition: inline
 
 Date: Mon, 8 Jun 2026 15:37:45 +0200
 From: Anders Magnusson <ragge%tethuvudet.se@localhost>
 To: Taylor R Campbell <riastradh%NetBSD.org@localhost>,
 	x85729201kza <x85729201kza%outlook.com@localhost>
 Cc: tech-kern%NetBSD.org@localhost
 Subject: Re: Clarification of CLOCK_MONOTONIC
 Message-ID: <6d1d64d9-edb6-46db-b325-0f003e558777%tethuvudet.se@localhost>
 In-Reply-To: <20260608131712.D059684CD8%mail.netbsd.org@localhost>
 References: <20260608131712.D059684CD8%mail.netbsd.org@localhost>
 MIME-Version: 1.0
 Content-Language: sv
 Content-Type: text/plain; charset=UTF-8; format=flowed
 Content-Transfer-Encoding: 7bit
 
 FYI; slight correction;
 
 > 
 > * macOS
 > 
 > By hearsay [MOZILLATIME], since I am having trouble finding macOS man
 > pages on the web, it sounds like:
 > 
 > - CLOCK_MONOTONIC counts time since boot, incl. suspend
 > - CLOCK_MONOTONIC_RAW counts time running since boot, excl. suspend
 > 
 The manpage on MacOS says:
 
       CLOCK_MONOTONIC
 	clock that increments monotonically, tracking the time
          since an arbitrary point, and will continue to
          increment while the system is asleep.
 
       CLOCK_MONOTONIC_RAW
          clock that increments monotonically, tracking the time
          since an arbitrary point like CLOCK_MONOTONIC.
          However, this clock is unaffected by frequency or time
          adjustments.  It should not be compared to other
          system time sources.
 
       CLOCK_UPTIME_RAW
 	clock that increments monotonically, in the same
 	manner as CLOCK_MONOTONIC_RAW, but that does not
 	increment while the system is asleep.  The returned
 	value is identical to the result of
 	mach_absolute_time() after the appropriate
 	mach_timebase conversion is applied.
 
 
 --=_NC1g7Zx04aXuOv/BTjb2XxgNiNEdj0K7--