From: "Rafael J. Wysocki" <rafael@kernel.org>
To: Linux PM <linux-pm@vger.kernel.org>
Cc: LKML <linux-kernel@vger.kernel.org>,
Lukasz Luba <lukasz.luba@arm.com>,
Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>,
Dietmar Eggemann <dietmar.eggemann@arm.com>,
Christian Loehle <christian.loehle@arm.com>
Subject: [PATCH v1 0/3] cpufreq: intel_pstate: Simplify the energy model for hybrid systems
Date: Wed, 08 Oct 2025 20:54:30 +0200 [thread overview]
Message-ID: <5937608.DvuYhMxLoT@rafael.j.wysocki> (raw)
Hi Everyone,
I've realized recently that the (artificial) energy model used by intel_pstate
on hybrid platforms without SMT is much more complicated than really necessary,
so I've decided to simplify it.
The new energy model uses less memory and it introduces less overhead into the
scheduler (mostly due to the reduction of the states table size). This change
in made in patch [3/3] (please see the changelog for the rationale).
The first two patches in the series are preliminary.
Thanks!
next reply other threads:[~2025-10-08 19:23 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-10-08 18:54 Rafael J. Wysocki [this message]
2025-10-08 18:55 ` [PATCH v1 1/3] cpufreq: intel_pstate: Add and use hybrid_get_cpu_type() Rafael J. Wysocki
2025-10-08 18:56 ` [PATCH v1 2/3] cpufreq: intel_pstate: Add and use hybrid_has_l3() Rafael J. Wysocki
2025-10-08 19:22 ` [PATCH v1 3/3] cpufreq: intel_pstate: Simplify the energy model for hybrid systems Rafael J. Wysocki
2025-10-11 8:50 ` Yaxiong Tian
2025-10-11 12:29 ` [PATCH " Rafael J. Wysocki
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