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From: Alok Kataria <akataria@vmware.com>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Chris Snook <chris.snook@gmail.com>,
	"H. Peter Anvin" <hpa@zytor.com>, Ingo Molnar <mingo@elte.hu>,
	Thomas Gleixner <tglx@linutronix.de>,
	the arch/x86 maintainers <x86@kernel.org>,
	LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] x86: Reduce the default HZ value
Date: Thu, 07 May 2009 15:19:44 -0700	[thread overview]
Message-ID: <1241734784.32495.31.camel@alok-dev1> (raw)
In-Reply-To: <20090507213403.3a75a6fb@lxorguk.ukuu.org.uk>


On Thu, 2009-05-07 at 13:34 -0700, Alan Cox wrote:
> > >> Given your use case, what you really need to do is get Red Hat,
> > >> Novell, et al. on the phone and ask them to ship kernels with HZ=100,
> > >> because the distributions do their own thing anyway.
> 
> As a side note Red Hat ships runtime configurable tick behaviour in RHEL
> these days. HZ is fixed but the ticks can be bunched up. That was done as
> a quick fix to keep stuff portable but its a lot more sensible than
> randomly messing with the HZ value and its not much code either.
> 
Hi Alan, 

I guess you are talking about the tick_divider patch ? 
And that's still same as reducing the HZ value only that it can be done
dynamically (boot time), right ? 

Thanks,
Alok


  parent reply	other threads:[~2009-05-07 22:19 UTC|newest]

Thread overview: 65+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-05-04 18:44 [PATCH] x86: Reduce the default HZ value Alok Kataria
2009-05-05 21:21 ` H. Peter Anvin
2009-05-05 21:44   ` Alan Cox
2009-05-05 22:09     ` Alok Kataria
2009-05-05 22:33       ` Alan Cox
2009-05-05 23:37         ` Alok Kataria
2009-05-07 14:09         ` Christoph Lameter
2009-05-07 15:12           ` Alan Cox
2009-05-05 21:57   ` Alok Kataria
2009-05-07 14:13     ` Christoph Lameter
2009-05-07 15:14       ` Alan Cox
2009-05-07 15:20         ` Christoph Lameter
2009-05-07 15:30         ` H. Peter Anvin
2009-05-07 15:40           ` Christoph Lameter
2009-05-07 16:55           ` Jeff Garzik
2009-05-07 17:09             ` Alan Cox
2009-05-07 17:55               ` Jeff Garzik
2009-05-07 19:51                 ` Alan Cox
2009-05-07 20:03                   ` Jeff Garzik
2009-05-07 20:30                     ` Alan Cox
2009-05-07 16:37         ` Alok Kataria
2009-05-07 17:07       ` Peter Zijlstra
2009-05-07 17:13         ` Peter Zijlstra
2009-05-07 17:18           ` Peter Zijlstra
2009-05-07 17:20             ` Christoph Lameter
2009-05-07 17:39               ` Peter Zijlstra
2009-05-07 17:40                 ` Christoph Lameter
2009-05-07 17:54               ` Paul E. McKenney
2009-05-07 17:51                 ` Christoph Lameter
2009-05-07 19:51                   ` Paul E. McKenney
2009-05-07 17:36             ` Paul E. McKenney
2009-05-07 17:38               ` Peter Zijlstra
2009-05-07 18:01                 ` Paul E. McKenney
2009-05-07 18:12                   ` Christoph Lameter
2009-05-07 19:06                     ` Paul E. McKenney
2009-05-07 19:53                     ` Alan Cox
2009-05-07 19:56                       ` Christoph Lameter
2009-05-07 20:24                         ` Alan Cox
2009-05-07 20:21                           ` Christoph Lameter
2009-05-08 10:32                   ` Peter Zijlstra
2009-05-08 12:50                     ` Paul E. McKenney
2009-05-08 14:16                       ` Christoph Lameter
2009-05-08 15:06                         ` Paul E. McKenney
2009-05-07 17:18           ` Christoph Lameter
2009-05-07 17:37             ` Peter Zijlstra
2009-05-07 17:34               ` Christoph Lameter
2009-05-07 17:55                 ` Peter Zijlstra
2009-05-07 17:55                   ` Christoph Lameter
2009-05-07 17:19         ` Christoph Lameter
2009-05-07 17:45           ` Peter Zijlstra
2009-05-07 17:50             ` Christoph Lameter
2009-05-07 19:17               ` Peter Zijlstra
2009-05-07 19:38                 ` Christoph Lameter
2009-05-07 21:01             ` H. Peter Anvin
2009-05-07 16:35     ` Chris Snook
2009-05-07 16:56       ` Alok Kataria
2009-05-07 20:29         ` Chris Snook
2009-05-07 20:34           ` Alan Cox
2009-05-07 22:16             ` Ravikiran G Thirumalai
2009-05-07 22:19             ` Alok Kataria [this message]
2009-05-08  9:31               ` Alan Cox
  -- strict thread matches above, loose matches on Subject: below --
2009-05-12 19:45 devzero
2009-05-13 23:30 ` Alok Kataria
2009-05-14 20:25 devzero
2009-05-14 20:29 ` Alan Cox

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