From: Matthew Garrett <mjg59@srcf.ucam.org>
To: Arjan van de Ven <arjan@linux.intel.com>
Cc: linux-kernel@vger.kernel.org, len.brown@intel.com
Subject: Re: [RFC] maximum latency tracking infrastructure
Date: Thu, 24 Aug 2006 23:24:18 +0100 [thread overview]
Message-ID: <20060824222417.GA27504@srcf.ucam.org> (raw)
In-Reply-To: <1156441295.3014.75.camel@laptopd505.fenrus.org>
On Thu, Aug 24, 2006 at 07:41:35PM +0200, Arjan van de Ven wrote:
> + /* the ipw2100 hardware really doesn't want power management delays
> + * longer than 500usec
> + */
> + modify_acceptable_latency("ipw2100", 500);
> +
Hm. My BIOS claims that the C3 transition period is 85usec (and even my
C4 is 185) , but I've hit the error path where C3 gets disabled. Is this
really adequate? Also, by the looks of it, the C3 disabling path is
still present - is it still theoretically necessary with the above, or
is this just a belt and braces approach?
--
Matthew Garrett | mjg59@srcf.ucam.org
next prev parent reply other threads:[~2006-08-24 22:24 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-08-24 17:41 [RFC] maximum latency tracking infrastructure Arjan van de Ven
2006-08-24 19:18 ` Len Brown
2006-08-24 21:08 ` Jesse Barnes
2006-08-24 21:20 ` Arjan van de Ven
2006-08-24 21:29 ` Jesse Barnes
2006-08-24 21:50 ` Andi Kleen
2006-08-25 4:54 ` Nick Piggin
2006-08-25 7:58 ` Arjan van de Ven
2006-08-25 8:26 ` Nick Piggin
2006-08-25 8:30 ` Arjan van de Ven
2006-08-24 21:52 ` Daniel Walker
2006-08-24 21:57 ` Arjan van de Ven
2006-08-24 22:16 ` Daniel Walker
2006-08-24 22:24 ` Matthew Garrett [this message]
2006-08-25 8:19 ` Arjan van de Ven
2006-08-24 22:52 ` Matt Mackall
2006-08-25 7:56 ` Arjan van de Ven
2006-08-25 14:54 ` Matt Mackall
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