From: dirk.brandewie@gmail.com
To: linux-kernel@vger.kernel.org, cpufreq@vger.kernel.org
Cc: Dirk Brandewie <dirk.brandewie@gmail.com>,
Dirk Brandewie <dirk.j.brandewie@intel.com>
Subject: [PATCH] cpufreq/intel_pstate: Fix calculation of current frequency
Date: Fri, 22 Mar 2013 10:51:05 -0700 [thread overview]
Message-ID: <1363974665-22049-1-git-send-email-dirk.brandewie@gmail.com> (raw)
From: Dirk Brandewie <dirk.brandewie@gmail.com>
Use the correct pstate value to calculate the effective frequency.
https://bugzilla.redhat.com/show_bug.cgi?id=923942
Reported-by: Satish Balay <balay@fastmail.fm>
Signed-off-by: Dirk Brandewie <dirk.j.brandewie@intel.com>
---
drivers/cpufreq/intel_pstate.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
index e84af66..ad72922 100644
--- a/drivers/cpufreq/intel_pstate.c
+++ b/drivers/cpufreq/intel_pstate.c
@@ -454,7 +454,7 @@ static inline void intel_pstate_calc_busy(struct cpudata *cpu,
sample->idletime_us * 100,
sample->duration_us);
core_pct = div64_u64(sample->aperf * 100, sample->mperf);
- sample->freq = cpu->pstate.turbo_pstate * core_pct * 1000;
+ sample->freq = cpu->pstate.max_pstate * core_pct * 1000;
sample->core_pct_busy = div_s64((sample->pstate_pct_busy * core_pct),
100);
--
1.7.7.6
next reply other threads:[~2013-03-22 17:51 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-03-22 17:51 dirk.brandewie [this message]
2013-03-23 0:14 ` Rafael J. Wysocki
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