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From: Lee Revell <rlrevell@joe-job.com>
To: Roman Zippel <zippel@linux-m68k.org>
Cc: john stultz <johnstul@us.ibm.com>,
	lkml <linux-kernel@vger.kernel.org>,
	Andrew Morton <akpm@osdl.org>,
	George Anzinger <george@mvista.com>,
	Ulrich Windl <ulrich.windl@rz.uni-regensburg.de>
Subject: Re: [PATCH 1/6] new timeofday core subsystem for -mm (v.B3)
Date: Mon, 20 Jun 2005 19:40:46 -0400	[thread overview]
Message-ID: <1119310847.17602.5.camel@mindpipe> (raw)
In-Reply-To: <Pine.LNX.4.61.0506202231070.3728@scrub.home>

On Tue, 2005-06-21 at 00:05 +0200, Roman Zippel wrote:
> With -mm you can now choose the HZ value, so that's not really the 
> problem anymore. A lot of archs even never changed to a higher HZ
> value. 

That does not solve anything, going back to HZ=100 is a big user-visible
regression because the resolution of sleep() (and poll, etc) is now 10ms
rather than 1ms.  Many apps have RT constraints between 1ms and 10ms.

Lee



  reply	other threads:[~2005-06-21  0:05 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-06-18  2:56 [PATCH 1/6] new timeofday core subsystem for -mm (v.B3) john stultz
2005-06-18  2:58 ` [PATCH 2/6] new timeofday i386 arch specific changes, part 1 " john stultz
2005-06-18  2:59   ` [PATCH 3/6] new timeofday i386 arch specific changes, part 2 " john stultz
2005-06-18  3:01     ` [PATCH 4/6] new timeofday i386 arch specific changes, part 3 " john stultz
2005-06-18  3:02       ` [PATCH 5/6] new timeofday i386 arch specific changes, part 4 " john stultz
2005-06-18  3:04         ` [PATCH 6/6] new timeofday i386 specific timesources " john stultz
2005-06-18 12:02 ` [PATCH 1/6] new timeofday core subsystem " Roman Zippel
2005-06-20  7:01   ` Ulrich Windl
2005-06-20 10:22     ` Roman Zippel
2005-06-20 10:31       ` Ulrich Windl
2005-06-20 10:54         ` Roman Zippel
2005-06-20 11:04         ` Christoph Hellwig
2005-06-20 17:09   ` john stultz
2005-06-20 18:10     ` Lee Revell
2005-06-20 21:53       ` john stultz
2005-06-20 23:44         ` Lee Revell
2005-06-21 14:55           ` Chris Friesen
2005-06-21 17:20             ` john stultz
2005-06-21  6:26       ` Ulrich Windl
2005-06-20 22:05     ` Roman Zippel
2005-06-20 23:40       ` Lee Revell [this message]
2005-06-20 23:55       ` john stultz
2005-06-21 15:08         ` Roman Zippel
2005-06-22  0:57           ` john stultz
2005-06-22  2:39             ` john stultz
2005-06-22 19:45             ` Roman Zippel
2005-06-23  0:29               ` john stultz
2005-06-23 21:59                 ` Roman Zippel
2005-06-24  0:33                   ` john stultz
2005-06-24 10:58                     ` Roman Zippel
2005-06-21  6:42       ` Ulrich Windl
2005-06-21 15:13         ` Roman Zippel

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