From: bugzilla-daemon@kernel.org
To: linux-pm@vger.kernel.org
Subject: [Bug 215800] amd-pstate does not allow to set arbitrary maximum CPU frequency above 2200MHz for a desktop Zen 3 CPU
Date: Fri, 07 Jul 2023 14:51:53 +0000 [thread overview]
Message-ID: <bug-215800-137361-3oTN9it7zM@https.bugzilla.kernel.org/> (raw)
In-Reply-To: <bug-215800-137361@https.bugzilla.kernel.org/>
https://bugzilla.kernel.org/show_bug.cgi?id=215800
--- Comment #28 from Mario Limonciello (AMD) (mario.limonciello@amd.com) ---
When you're using active mode (EPP), the hardware is choosing frequencies and
software only provides a hint to set bias.
You can read a little bit more about active mode at
https://www.kernel.org/doc/html/latest/admin-guide/pm/amd-pstate.html
What you should be doing isn't trying to set specific frequency targets, but
rather you should change the values of 'energy_performance_preference' to meet
the needs for your workload.
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next prev parent reply other threads:[~2023-07-07 14:51 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-05 1:16 [Bug 215800] New: amd-pstate does not allow to set arbitrary maximum CPU frequency above 2200MHz for a desktop Zen 3 CPU bugzilla-daemon
2022-04-05 1:31 ` [Bug 215800] " bugzilla-daemon
2022-04-11 7:22 ` bugzilla-daemon
2022-04-11 13:33 ` bugzilla-daemon
2022-04-11 16:28 ` bugzilla-daemon
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2023-07-07 14:51 ` bugzilla-daemon [this message]
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