From: David Brownell <david-b@pacbell.net>
To: Venki Pallipadi <venkatesh.pallipadi@intel.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
linux-kernel@vger.kernel.org, "Rafael J. Wysocki" <rjw@sisk.pl>,
linux-acpi@vger.kernel.org, Len Brown <lenb@kernel.org>
Subject: Re: 2.6.25 regression: powertop says 120K wakeups/sec
Date: Fri, 28 Mar 2008 14:09:09 -0700 [thread overview]
Message-ID: <200803281409.09622.david-b@pacbell.net> (raw)
In-Reply-To: <20080328203014.GA16105@linux-os.sc.intel.com>
On Friday 28 March 2008, Venki Pallipadi wrote:
> Can you send me the output of
> # grep . /sys/devices/system/cpu/cpu*/cpuidle/*/*
> with upstream kernel.
This is "upstream" to 3085354de635179d70c240e6d942bcbd1d93056c:
/sys/devices/system/cpu/cpu0/cpuidle/state0/desc:CPUIDLE CORE POLL IDLE
/sys/devices/system/cpu/cpu0/cpuidle/state0/latency:0
/sys/devices/system/cpu/cpu0/cpuidle/state0/name:C0
/sys/devices/system/cpu/cpu0/cpuidle/state0/power:4294967295
/sys/devices/system/cpu/cpu0/cpuidle/state0/time:0
/sys/devices/system/cpu/cpu0/cpuidle/state0/usage:0
/sys/devices/system/cpu/cpu0/cpuidle/state1/desc:<null>
/sys/devices/system/cpu/cpu0/cpuidle/state1/latency:0
/sys/devices/system/cpu/cpu0/cpuidle/state1/name:C1
/sys/devices/system/cpu/cpu0/cpuidle/state1/power:0
/sys/devices/system/cpu/cpu0/cpuidle/state1/time:2781727265
/sys/devices/system/cpu/cpu0/cpuidle/state1/usage:927242422
... as I mentioned, powertop says C2 doesn't get used any more,
moreover that only C0 ever gets used. The "usage" seems to be
saying otherwise.
> Below is a test patch which should effectively revert commit bc71bec91f987
> Can you check with this patch on latest git and see whether things come back
> to normal.
I'll get back to you with results.
> Also, it will help if you can send the output of acpidump from this system.
Sent off-list.
- Dave
next prev parent reply other threads:[~2008-03-28 21:23 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20080322202454.9D69DCC0EF@adsl-69-226-248-13.dsl.pltn13.pacbell.net>
2008-03-23 0:35 ` 2.6.25 regression: powertop says 120K wakeups/sec Andrew Morton
2008-03-23 18:04 ` Alexey Starikovskiy
2008-03-28 19:01 ` David Brownell
2008-03-28 19:13 ` Pallipadi, Venkatesh
2008-03-28 19:44 ` David Brownell
2008-03-28 20:30 ` Venki Pallipadi
2008-03-28 21:09 ` David Brownell [this message]
2008-03-28 21:55 ` Pallipadi, Venkatesh
2008-03-28 22:09 ` David Brownell
2008-03-28 22:56 ` Venki Pallipadi
2008-03-28 23:01 ` Rafael J. Wysocki
2008-03-28 23:07 ` Pallipadi, Venkatesh
2008-03-31 17:42 ` Mark Lord
2008-03-31 18:34 ` Pallipadi, Venkatesh
2008-03-28 23:36 ` David Brownell
2008-03-28 23:51 ` Pallipadi, Venkatesh
2008-03-29 0:15 ` David Brownell
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