[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-Id: <200906121925.38693.elendil@planet.nl>
Date: Fri, 12 Jun 2009 19:25:37 +0200
From: Frans Pop <elendil@...net.nl>
To: "Pallipadi, Venkatesh" <venkatesh.pallipadi@...el.com>
Cc: "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
"linux-acpi@...r.kernel.org" <linux-acpi@...r.kernel.org>
Subject: Re: [BUG][2.6.30] Niced processes do not raise CPU frequency with ondemand
Thanks for the quick reply Venki.
On Friday 12 June 2009, Pallipadi, Venkatesh wrote:
> What does ignore_nice under cpufreq/ondemand say?
Right, that's 1 (was not aware that existed :-P)
And changing it to 0 solves the problem.
Next question is: how and why does it get set?
As userland has not changed (AFAIK), my first suspect remains the kernel.
# grep . /sys/devices/system/cpu/cpu*/cpufreq/ondemand/*
/sys/devices/system/cpu/cpu0/cpufreq/ondemand/ignore_nice_load:1
/sys/devices/system/cpu/cpu0/cpufreq/ondemand/powersave_bias:0
/sys/devices/system/cpu/cpu0/cpufreq/ondemand/sampling_rate:80000
/sys/devices/system/cpu/cpu0/cpufreq/ondemand/sampling_rate_max:40000000
/sys/devices/system/cpu/cpu0/cpufreq/ondemand/sampling_rate_min:40000
/sys/devices/system/cpu/cpu0/cpufreq/ondemand/up_threshold:90
/sys/devices/system/cpu/cpu1/cpufreq/ondemand/ignore_nice_load:1
/sys/devices/system/cpu/cpu1/cpufreq/ondemand/powersave_bias:0
/sys/devices/system/cpu/cpu1/cpufreq/ondemand/sampling_rate:80000
/sys/devices/system/cpu/cpu1/cpufreq/ondemand/sampling_rate_max:40000000
/sys/devices/system/cpu/cpu1/cpufreq/ondemand/sampling_rate_min:40000
/sys/devices/system/cpu/cpu1/cpufreq/ondemand/up_threshold:90
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists