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From: Zhang Rui <rui.zhang@intel.com>
To: peterz@infradead.org, rjw@rjwysocki.net, len.brown@intel.com
Cc: mingo@redhat.com, linux-pm@vger.kernel.org, x86@kernel.org,
	linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org,
	ak@linux.intel.com, kan.liang@linux.intel.com,
	artem.bityutskiy@linux.intel.com
Subject: [PATCH 0/3] driver/tool fix for SPR Dram RAPL Domain
Date: Sat, 24 Sep 2022 13:47:35 +0800	[thread overview]
Message-ID: <20220924054738.12076-1-rui.zhang@intel.com> (raw)

Intel Xeon servers used to use a fixed energy resolution (15.3uj) for
Dram RAPL domain, starting from HasWell-X.

But on SPR, this changes.
The Dram RAPL domain uses 61uj energy resolution, which follows the
standard energy resolution as described in MSR_RAPL_POWER_UNIT.

There are a couple of places that have implemented the energy unit quirk
for SPR Dram RAPL domain, including intel-rapl driver, rapl perf pmu and
the turbostat tool.

This patch series fixes them all, although they belong to different
components.

thanks,
rui

             reply	other threads:[~2022-09-24  5:45 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-09-24  5:47 Zhang Rui [this message]
2022-09-24  5:47 ` [PATCH 1/3] powercap: intel_rapl: Use standard Energy Unit for SPR Dram RAPL domain Zhang Rui
2022-09-24 17:34   ` Rafael J. Wysocki
2022-09-24  5:47 ` [PATCH 2/3] perf/x86/rapl: " Zhang Rui
2022-10-30  8:31   ` Zhang Rui
2022-09-24  5:47 ` [PATCH 3/3] tools/power turbostat: " Zhang Rui

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