Your message dated Mon, 22 Oct 2012 00:45:10 +0200
with message-id <[email protected]>
and subject line Re: Bug#540872: clock_gettime(2): Document that real-time
processes want CLOCK_MONOTONIC, not CLOCK_REALTIME
has caused the Debian Bug report #540872,
regarding clock_gettime(2): Document that real-time processes want
CLOCK_MONOTONIC, not CLOCK_REALTIME
to be marked as done.
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If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.
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--
540872: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=540872
Debian Bug Tracking System
Contact [email protected] with problems
--- Begin Message ---
Package: manpages
Version: 3.22-1
Severity: wishlist
Developers of real-time programs (programs using real-time scheduling
and/or expecting low latency) sometimes see CLOCK_REALTIME and think
they want to use that, when they almost certainly don't. Please
consider adding some clarification that the "real-time" of
CLOCK_REALTIME refers to wall-clock time (as opposed to CPU or process
time, for instance) and that developers of real-time applications want
to use CLOCK_MONOTONIC.
Thanks,
Josh Triplett
-- System Information:
Debian Release: squeeze/sid
APT prefers testing
APT policy: (500, 'testing')
Architecture: i386 (i686)
Kernel: Linux 2.6.31-rc5 (SMP w/2 CPU cores; PREEMPT)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash
manpages depends on no packages.
manpages recommends no packages.
Versions of packages manpages suggests:
ii man-db [man-browser] 2.5.5-3 on-line manual pager
-- no debconf information
--- End Message ---
--- Begin Message ---
Version: 3.42-1
On Mon, Apr 30, 2012 at 10:50:50AM +1200, Michael Kerrisk (man-pages) wrote:
> tags 540872 fixed-upstream
> thanks
[..]
> How about doing this in a different way. Instead of pointing the
> reader at CLOCK_MONOTONIC*, let's be more explicit about what
> CLOCK_REALTIME is, so that it's evident to the designer of a realtime
> application that they don't want this clock.
>
> [[
> .TP
> .B CLOCK_REALTIME
> System-wide clock that measures real (i.e., wall-clock) time.
> Setting this clock requires appropriate privileges.
> This clock is affected by discontinuous jumps in the system time
> (e.g., if the system administrator manually changes the clock),
> and by the incremental adjustments performed by
> .BR adjtime (2)
> and NTP.
> ]]
http://git.kernel.org/?p=docs/man-pages/man-pages.git;a=commitdiff;h=22594a3cb
first in upstream 3.41, and first in debian through manpages 3.42-1.
--
Simon Paillard
--- End Message ---
