From: "Alex,Shi" <alex.shi@intel.com>
To: Norbert Preining <preining@logic.at>
Cc: Peter Zijlstra <peterz@infradead.org>,
"Chen, Tim C" <tim.c.chen@intel.com>,
"arjan@infradead.org" <arjan@infradead.org>,
"efault@gmx.de" <efault@gmx.de>,
"Li, Shaohua" <shaohua.li@intel.com>, tglx <tglx@linutronix.de>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"Zhao, Yakui" <yakui.zhao@intel.com>
Subject: Re: high power consumption in recent kernels
Date: Thu, 30 Sep 2010 08:50:41 +0800 [thread overview]
Message-ID: <1285807841.21962.1147.camel@debian> (raw)
In-Reply-To: <4CA34F95.30400@logic.at>
On Wed, 2010-09-29 at 22:39 +0800, Norbert Preining wrote:
> Hi Alex,
>
> > Could you like to try the following patch on your system and see how
> > many power it consumption now?
>
> But this patch is excately what you send me already and what I tried
> and I answered in the last email?
>
> Do I miss something here?
>
> All the best
>
> Norbert
The following line is different, the new code remove the nohz_ratelimit
from irq_exit(). That may resolve your system too many interrupts
issue.
+ arch_needs_cpu(cpu)|| (inidle && nohz_ratelimit(cpu))) {
next prev parent reply other threads:[~2010-09-30 0:48 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1283840425.26157.6486.camel@debian>
[not found] ` <20100909093140.GC29648@gamma.logic.tuwien.ac.at>
[not found] ` <EA929A9653AAE14F841771FB1DE5A1366008738EC2@rrsmsx501.amr.corp.intel.com>
[not found] ` <20100909205115.GD11053@gamma.logic.tuwien.ac.at>
[not found] ` <1284107099.402.30.camel@laptop>
2010-09-10 14:48 ` high power consumption in recent kernels Shi, Alex
2010-09-10 14:54 ` Norbert Preining
2010-09-13 5:21 ` Alex,Shi
2010-09-17 2:09 ` Alex,Shi
2010-09-22 15:44 ` Norbert Preining
2010-09-28 10:40 ` Alex,Shi
2010-09-29 14:39 ` Norbert Preining
2010-09-29 15:48 ` Chen, Tim C
2010-09-30 0:50 ` Alex,Shi [this message]
2010-09-30 2:01 ` Norbert Preining
2010-09-30 6:59 ` Norbert Preining
2010-09-30 8:27 ` Alex,Shi
2010-09-30 12:36 ` Peter Zijlstra
2010-09-30 13:21 ` Shi, Alex
2010-07-06 16:45 Norbert Preining
2010-07-08 9:06 ` Peter Zijlstra
2010-07-08 11:57 ` Arjan van de Ven
2010-07-08 11:58 ` Peter Zijlstra
2010-07-08 12:04 ` Norbert Preining
2010-07-08 12:22 ` Peter Zijlstra
2010-07-08 12:46 ` Norbert Preining
2010-07-08 13:23 ` Peter Zijlstra
2010-07-08 15:59 ` Peter Zijlstra
2010-07-08 19:06 ` Peter Zijlstra
2010-07-08 19:40 ` Mike Galbraith
2010-07-08 20:44 ` Peter Zijlstra
2010-07-09 3:08 ` Arjan van de Ven
2010-07-09 5:55 ` Mike Galbraith
2010-07-08 19:37 ` Mike Galbraith
2010-07-08 15:11 ` Arjan van de Ven
2010-07-09 19:09 ` Pavel Machek
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