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From: Andi Kleen <andi@firstfloor.org>
To: Mike Travis <travis@sgi.com>
Cc: Andi Kleen <andi@firstfloor.org>, Ingo Molnar <mingo@elte.hu>,
	Pavel Machek <pavel@suse.cz>,
	Rusty Russell <rusty@rustcorp.com.au>,
	Andrew Morton <akpm@linux-foundation.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	Jack Steiner <steiner@sgi.com>, "H. Peter Anvin" <hpa@zytor.com>,
	Richard Purdie <rpurdie@rpsys.net>,
	LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 1/1] SGI X86 UV: Provide a System Activity Indicator	driver
Date: Sat, 25 Oct 2008 08:56:27 +0200	[thread overview]
Message-ID: <20081025065627.GI27492@one.firstfloor.org> (raw)
In-Reply-To: <490249CF.2080308@sgi.com>

> Cool, thanks!  I rewrote the patch to use current->pid, removing the
> idle callback.

As a additional measure you could make the timer deferred when in 
idle state.  Then you would only actually do something when 
changing from idle to non idle or keeps being busy, but nothing 
when a CPU stays idle for a longer time.

The frequency wouldn't necessarily be 1 second then though.

-Andi

  parent reply	other threads:[~2008-10-25  6:49 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-10-24 11:19 Mike Travis
2008-10-24 12:01 ` Pavel Machek
2008-10-24 12:05   ` Ingo Molnar
2008-10-24 12:27     ` Mike Travis
2008-10-24 18:12       ` Andi Kleen
2008-10-24 22:18         ` Mike Travis
2008-10-24 22:24           ` Mike Travis
2008-10-27 11:42             ` Ingo Molnar
2008-10-27 14:38               ` Mike Travis
2008-10-27 14:51               ` [PATCH 1/1] SGI x86 UV: Update SCIR driver to use idle_cpu function Mike Travis
2008-10-27 18:06                 ` Ingo Molnar
2008-10-27 18:46                   ` [PATCH 1/1] SGI x86 UV: Use raw_smp_processor_id Mike Travis
2008-10-25  6:56           ` Andi Kleen [this message]
2008-10-27 15:12             ` [PATCH 1/1] SGI X86 UV: Provide a System Activity Indicator driver Mike Travis
2008-10-27 11:36           ` Ingo Molnar
2008-10-27 11:43       ` Ingo Molnar
2008-10-24 12:14   ` Mike Travis
  -- strict thread matches above, loose matches on Subject: below --
2008-09-19 14:37 [PATCH 0/1] " Mike Travis
2008-09-19 14:37 ` [PATCH 1/1] " Mike Travis
2008-09-22 11:48   ` Ingo Molnar
2008-09-22 14:42     ` Mike Travis
2008-09-28 19:42       ` Pavel Machek
2008-10-01 18:15         ` Mike Travis
2008-10-01 19:41           ` Mike Travis
2008-10-02  8:37           ` Pavel Machek
2008-10-02 14:33             ` Mike Travis
2008-09-22 14:47     ` Mike Travis

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