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From: Lee Revell <rlrevell@joe-job.com>
To: john stultz <johnstul@us.ibm.com>
Cc: lkml <linux-kernel@vger.kernel.org>,
	George Anzinger <george@mvista.com>,
	frank@tuxrocks.com, Anton Blanchard <anton@samba.org>,
	benh@kernel.crashing.org, Nishanth Aravamudan <nacc@us.ibm.com>,
	Roman Zippel <zippel@linux-m68k.org>,
	Ulrich Windl <ulrich.windl@rz.uni-regensburg.de>
Subject: Re: [RFC - 0/9] Generic timekeeping subsystem  (v. B5)
Date: Wed, 10 Aug 2005 22:44:04 -0400	[thread overview]
Message-ID: <1123728244.30850.5.camel@mindpipe> (raw)
In-Reply-To: <1123727994.32531.62.camel@cog.beaverton.ibm.com>

On Wed, 2005-08-10 at 19:39 -0700, john stultz wrote:
> Ah, I've got a patch on my laptop that takes that down to ~2% or less.
> I didn't include it in this patch set but I'll work to get it
> integrated before the next release. Sorry about that.
> 
> If you have any suggestions for further performance improvements,
> please let me know.

2% sounds reasonable to me.  I just don't think we can afford 20%
because so many stupid apps bang on gettimeofday() constantly.

Lee


  reply	other threads:[~2005-08-11  2:44 UTC|newest]

Thread overview: 71+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-08-11  1:21 [RFC - 0/13] NTP cleanup work (v. B5) john stultz
2005-08-11  1:23 ` [RFC][PATCH - 1/13] NTP cleanup: Move NTP code into ntp.c john stultz
2005-08-11  1:25   ` [RFC][PATCH - 2/13] NTP cleanup: Move arches to new ntp interfaces john stultz
2005-08-11  1:26     ` [RFC][PATCH - 3/13] NTP cleanup: Remove unused NTP PPS code john stultz
2005-08-11  1:27       ` [RFC][PATCH - 4/13] NTP cleanup: Breakup ntp_adjtimex() john stultz
2005-08-11  1:28         ` [RFC][PATCH - 5/13] NTP cleanup: Break out leapsecond processing john stultz
2005-08-11  1:28           ` [RFC][PATCH - 6/13] NTP cleanup: Clean up ntp_adjtimex() arguement checking john stultz
2005-08-11  1:31             ` [RFC][PATCH - 7/13] NTP cleanup: Cleanup signed shifting logic john stultz
2005-08-11  1:31               ` [RFC][PATCH - 8/13] NTP cleanup: Integrate second_overflow() logic john stultz
2005-08-11  1:33                 ` [RFC][PATCH - 9/13] NTP cleanup: Improve NTP variable names john stultz
2005-08-11  1:33                   ` [RFC][PATCH - 10/13] NTP cleanup: Use ntp_lock instead of xtime_lock john stultz
2005-08-11  1:35                     ` [RFC][PATCH - 11/13] NTP cleanup: Introduce PPM adjustment variables john stultz
2005-08-11  1:36                       ` [RFC][PATCH - 12/13] NTP cleanup: cleanup ntp_advance() adjtime code john stultz
2005-08-11  1:38                         ` [RFC][PATCH - 13/13] NTP cleanup: drop time_phase and time_adj add copyright john stultz
2005-08-16  2:08         ` [RFC][PATCH - 4/13] NTP cleanup: Breakup ntp_adjtimex() john stultz
2005-08-11  2:13 ` [RFC - 0/9] Generic timekeeping subsystem (v. B5) john stultz
2005-08-11  2:14   ` [PATCH 1/9] Timesource management code john stultz
2005-08-11  2:16     ` [PATCH 2/9] Generic timekeeping core subsystem john stultz
2005-08-11  2:18       ` [PATCH 3/9] Generic timekeeping i386 arch specific changes, part 1 john stultz
2005-08-11  2:19         ` [PATCH 4/9] generic timekeeping i386 arch specific changes, part 2 john stultz
2005-08-11  2:20           ` [PATCH 5/9] generic timekeeping i386 arch specific changes, part 3 john stultz
2005-08-11  2:21             ` [PATCH 6/9] generic timekeeping i386 arch specific changes, part 4 john stultz
2005-08-11  2:23               ` [PATCH 7/9] generic timekeeping i386 arch specific changes, part 5 john stultz
2005-08-11  2:24                 ` [PATCH 8/9] generic timekeeping i386 arch specific changes, part 6 john stultz
2005-08-11  2:25                   ` [PATCH 9/9] generic timekeeping i386 specific timesources john stultz
2005-08-11  2:32   ` [RFC - 0/9] Generic timekeeping subsystem (v. B5) Lee Revell
2005-08-11  2:39     ` john stultz
2005-08-11  2:44       ` Lee Revell [this message]
2005-08-11  6:17     ` Ulrich Windl
2005-08-11  2:37   ` [RFC] Cumulative NTP cleanujp and generic timekeeping patch (v B5) john stultz
2005-08-15 22:14   ` [RFC - 0/9] Generic timekeeping subsystem (v. B5) Roman Zippel
2005-08-16  0:10     ` john stultz
2005-08-16 18:25       ` Christoph Lameter
2005-08-16 23:48         ` john stultz
2005-08-17  0:14           ` Christoph Lameter
2005-08-17  0:17             ` john stultz
2005-08-17  0:21               ` Christoph Lameter
2005-08-17  6:08         ` Ulrich Windl
2005-08-17 14:07           ` Christoph Lameter
2005-08-17  0:28       ` Roman Zippel
2005-08-17  1:17         ` john stultz
2005-08-17  7:40           ` Ulrich Windl
2005-08-19  0:27           ` Roman Zippel
2005-08-20  2:32             ` john stultz
2005-08-21 23:19               ` Roman Zippel
2005-08-22 18:57                 ` john stultz
2005-08-23 11:30                   ` Roman Zippel
2005-08-23 18:52                     ` john stultz
2005-08-23 20:51                     ` john stultz
2005-08-23 21:34                       ` Roman Zippel
2005-08-23 23:14                         ` john stultz
2005-08-23 23:54                           ` Roman Zippel
2005-08-24  0:29                             ` George Anzinger
2005-08-24 20:36                               ` john stultz
2005-08-24 23:46                                 ` George Anzinger
2005-08-25  0:42                                   ` john stultz
2005-08-25  1:44                                     ` George Anzinger
2005-08-25  2:13                                       ` john stultz
2005-08-24  6:34                             ` Ulrich Windl
2005-08-24  9:47                               ` Roman Zippel
2005-08-24 18:00                             ` john stultz
2005-08-24 18:48                               ` Roman Zippel
2005-08-24 19:15                                 ` john stultz
2005-08-24 19:49                                   ` Roman Zippel
2005-08-24 22:40                                     ` john stultz
2005-08-25  0:45                                       ` Roman Zippel
2005-08-25 18:08                                         ` john stultz
2005-08-17 19:03         ` George Anzinger
2005-08-15 22:12 ` [RFC - 0/13] NTP cleanup work " Roman Zippel
2005-08-15 22:46   ` john stultz
2005-08-17  0:10     ` Roman Zippel

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