From: Roman Zippel <zippel@linux-m68k.org>
To: George Anzinger <george@mvista.com>
Cc: tglx@linutronix.de, linux-kernel@vger.kernel.org,
Andrew Morton <akpm@osdl.org>,
rostedt@goodmis.org, johnstul@us.ibm.com, mingo@elte.hu
Subject: Re: [patch 00/21] hrtimer - High-resolution timer subsystem
Date: Thu, 22 Dec 2005 00:03:54 +0100 (CET) [thread overview]
Message-ID: <Pine.LNX.4.61.0512212350110.2778@scrub.home> (raw)
In-Reply-To: <43A71E07.30403@mvista.com>
Hi,
On Mon, 19 Dec 2005, George Anzinger wrote:
> > You don't think the current behaviour is wrong.
> >
> >
> On of the issues I see with using your assumption is that moving the timer to
> an absolute clock after the initial expiry _may_ lead to additional
> qauntization errors, depending on how aligned the two clocks are.
What do you mean by "moving the timer to an an absolute clock"?
> I would guess, then, that either the non-absolute or the absolute timer
> behaves badly in the face of clock setting. Could you provide a pointer to
> the NetBSD code so I can have a look too?
http://cvsweb.netbsd.org/bsdweb.cgi/src/sys/kern/kern_time.c?rev=1.98&content-type=text/x-cvsweb-markup
AFAICT TIMER_ABSTIME is only used to convert the relative value to an
absolute value.
bye, Roman
next prev parent reply other threads:[~2005-12-21 23:04 UTC|newest]
Thread overview: 74+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-12-06 0:01 [patch 00/21] hrtimer - High-resolution timer subsystem tglx
2005-12-06 0:01 ` [patch 01/21] Move div_long_long_rem out of jiffies.h tglx
2005-12-06 0:01 ` [patch 02/21] Remove duplicate div_long_long_rem implementation tglx
2005-12-06 0:01 ` [patch 03/21] Deinline mktime and set_normalized_timespec tglx
2005-12-06 0:01 ` [patch 04/21] Clean up mktime and make arguments const tglx
2005-12-06 0:01 ` [patch 05/21] Export deinlined mktime tglx
2005-12-06 0:01 ` [patch 06/21] Remove unused clock constants tglx
2005-12-06 0:01 ` [patch 07/21] Coding style clean up of " tglx
2005-12-06 0:01 ` [patch 08/21] Coding style and white space cleanup tglx
2005-12-06 0:01 ` [patch 09/21] Make clockid_t arguments const tglx
2005-12-06 0:01 ` [patch 10/21] Coding style and white space cleanup tglx
2005-12-06 0:01 ` [patch 11/21] Create and use timespec_valid macro tglx
2005-12-06 0:01 ` [patch 12/21] Validate timespec of do_sys_settimeofday tglx
2005-12-06 0:01 ` [patch 13/21] Introduce nsec_t type and conversion functions tglx
2005-12-06 0:01 ` [patch 14/21] Introduce ktime_t time format tglx
2005-12-06 0:01 ` [patch 15/21] hrtimer core code tglx
2005-12-15 3:43 ` Matt Helsley
2005-12-06 0:01 ` [patch 16/21] hrtimer documentation tglx
2005-12-06 0:01 ` [patch 17/21] Switch itimers to hrtimer tglx
2005-12-06 0:01 ` [patch 18/21] Create hrtimer nanosleep API tglx
2005-12-06 0:01 ` [patch 19/21] Switch sys_nanosleep to hrtimer tglx
2005-12-06 0:01 ` [patch 20/21] Switch clock_nanosleep to hrtimer nanosleep API tglx
2005-12-06 0:01 ` [patch 21/21] Convert posix timers completely tglx
2005-12-06 17:32 ` [patch 00/21] hrtimer - High-resolution timer subsystem Roman Zippel
2005-12-06 19:07 ` Ingo Molnar
2005-12-07 3:05 ` Roman Zippel
2005-12-08 5:18 ` Paul Jackson
2005-12-08 8:12 ` Ingo Molnar
2005-12-08 9:26 ` Ingo Molnar
2005-12-08 13:08 ` Roman Zippel
2005-12-08 15:36 ` Steven Rostedt
2005-12-06 22:10 ` Thomas Gleixner
2005-12-07 3:11 ` Roman Zippel
2005-12-06 22:28 ` Thomas Gleixner
2005-12-07 9:31 ` Andrew Morton
2005-12-07 10:11 ` Ingo Molnar
2005-12-07 10:20 ` Ingo Molnar
2005-12-07 10:23 ` Nick Piggin
2005-12-07 10:49 ` Ingo Molnar
2005-12-07 11:09 ` Nick Piggin
2005-12-07 11:33 ` Ingo Molnar
2005-12-07 11:40 ` Nick Piggin
2005-12-07 13:06 ` Roman Zippel
2005-12-07 12:40 ` Roman Zippel
2005-12-07 23:12 ` Nick Piggin
2005-12-07 12:18 ` Roman Zippel
2005-12-07 16:55 ` Ingo Molnar
2005-12-07 17:17 ` Roman Zippel
2005-12-07 17:57 ` Ingo Molnar
2005-12-07 18:18 ` Roman Zippel
2005-12-07 18:02 ` Paul Baxter
2005-12-09 17:23 ` Thomas Gleixner
2005-12-12 13:39 ` Roman Zippel
2005-12-12 16:42 ` Thomas Gleixner
2005-12-12 18:37 ` Thomas Gleixner
2005-12-13 1:25 ` George Anzinger
2005-12-13 9:18 ` Thomas Gleixner
2005-12-15 1:35 ` Roman Zippel
2005-12-15 2:29 ` George Anzinger
2005-12-19 14:56 ` Roman Zippel
2005-12-19 20:54 ` George Anzinger
2005-12-21 23:03 ` Roman Zippel [this message]
2005-12-22 4:30 ` George Anzinger
2005-12-14 20:48 ` Roman Zippel
2005-12-14 22:30 ` Thomas Gleixner
2005-12-15 0:55 ` George Anzinger
2005-12-15 14:18 ` Steven Rostedt
2005-12-19 14:50 ` Roman Zippel
2005-12-19 22:05 ` Thomas Gleixner
2005-12-13 12:45 Nicolas Mailhot
2005-12-13 23:38 ` George Anzinger
2005-12-14 8:58 ` Kyle Moffett
2005-12-14 10:03 ` Nicolas Mailhot
2005-12-15 1:11 ` George Anzinger
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