From: Arjan van de Ven <arjan@linux.intel.com>
To: riel@redhat.com, linux-pm@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, rafael.j.wysocki@intel.com,
len.brown@intel.com, daniel.lezcano@linaro.org
Subject: Re: [PATCH 3/3] cpuidle,menu: smooth out measured_us calculation
Date: Wed, 4 Nov 2015 08:02:41 -0800 [thread overview]
Message-ID: <563A2C21.8020308@linux.intel.com> (raw)
In-Reply-To: <1446590059-18897-4-git-send-email-riel@redhat.com>
On 11/3/2015 2:34 PM, riel@redhat.com wrote:
> Furthermore, for smaller sleep intervals, we know the chance that
> all the cores in the package went to the same idle state are fairly
> small. Dividing the measured_us by two, instead of subtracting the
> full exit latency when hitting a small measured_us, will reduce the
> error.
there is no perfect answer for this issue; but at least this makes the situation
a lot better, so
Acked-by: Arjan van de Ven <arjan@linux.intel.com>
next prev parent reply other threads:[~2015-11-04 16:02 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-11-03 22:34 [PATCH 0/3] cpuidle: small improvements & fixes for menu governor (resend) riel
2015-11-03 22:34 ` [PATCH 1/3] cpuidle,x86: increase forced cut-off for polling to 20us riel
2015-11-04 16:00 ` Arjan van de Ven
2015-11-03 22:34 ` [PATCH 2/3] cpuidle,menu: use interactivity_req to disable polling riel
2015-11-04 16:01 ` Arjan van de Ven
2016-01-13 17:27 ` Sudeep Holla
2016-01-13 21:58 ` Rafael J. Wysocki
2016-01-13 22:07 ` Rafael J. Wysocki
2016-01-14 10:40 ` Sudeep Holla
2016-01-15 0:46 ` Rafael J. Wysocki
2016-01-14 10:33 ` Sudeep Holla
2015-11-03 22:34 ` [PATCH 3/3] cpuidle,menu: smooth out measured_us calculation riel
2015-11-04 16:02 ` Arjan van de Ven [this message]
2015-11-05 22:34 ` [PATCH 0/3] cpuidle: small improvements & fixes for menu governor (resend) Rafael J. Wysocki
2015-11-06 2:26 ` Rik van Riel
-- strict thread matches above, loose matches on Subject: below --
2015-10-28 22:46 [PATCH 0/3] cpuidle: small improvements & fixes for menu governor riel
2015-10-28 22:46 ` [PATCH 3/3] cpuidle,menu: smooth out measured_us calculation riel
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