From: Srivatsa Vaddagiri <vatsa@in.ibm.com>
To: Kumar Gala <galak@kernel.crashing.org>
Cc: sri_vatsa_v@yahoo.com, paulus@samba.org, linuxppc-dev@ozlabs.org
Subject: Re: [PATCH 2/4] tickless idle cpu: Skip ticks when CPU is idle
Date: Mon, 10 Apr 2006 17:53:39 +0530 [thread overview]
Message-ID: <20060410122339.GD5564@in.ibm.com> (raw)
In-Reply-To: <981C3B4E-7336-403D-AF58-3B36AA071866@kernel.crashing.org>
On Fri, Apr 07, 2006 at 09:16:58AM -0500, Kumar Gala wrote:
> >+config NO_IDLE_HZ
> >+ depends on EXPERIMENTAL && (PPC_PSERIES || PPC_PMAC || PPC_MAPLE)
> >+ bool "Switch off timer ticks on idle CPUs"
> >+ help
> >+ Switches the HZ timer interrupts off when a CPU is idle.
> >+
>
> any reason not to provide this for all 6xx class processors?
I think the same patch would work mostly for 6xx cpus as well. I however
dont think have any hardware to test it. If I am not mistaken, to
support 6xx CPUs, only ppc6xx_idle needs to be modified to call stop_hz_timer
before going into power-save mode?
--
Regards,
vatsa
next prev parent reply other threads:[~2006-04-10 13:44 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-04-07 6:31 [PATCH 2/4] tickless idle cpu: Skip ticks when CPU is idle Srivatsa Vaddagiri
2006-04-07 14:16 ` Kumar Gala
2006-04-10 12:23 ` Srivatsa Vaddagiri [this message]
2006-04-07 23:40 ` Paul Mackerras
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