From: bugzilla-daemon@kernel.org
To: linux-pm@vger.kernel.org
Subject: [Bug 215729] amd-pstate driver has a much higher idle power consumption for a desktop Zen 3 CPU
Date: Fri, 07 Jul 2023 13:24:20 +0000 [thread overview]
Message-ID: <bug-215729-137361-xxURIxwQSb@https.bugzilla.kernel.org/> (raw)
In-Reply-To: <bug-215729-137361@https.bugzilla.kernel.org/>
https://bugzilla.kernel.org/show_bug.cgi?id=215729
--- Comment #10 from Artem S. Tashkinov (aros@gmx.com) ---
Kernel 6.3.12, default settings:
acpi-cpufreq: ~19.4W
amd-pstate: ~20.7W
Much better but not perfect. I can live with that but I still expected the
amd-pstate driver to be more effective considering its using native interfaces.
Not using any boot flags except: amd_pstate=active
/sys/devices/system/cpu/cpufreq/policy0 $ grep -r .
energy_performance_available_preferences:default performance
balance_performance balance_power power
amd_pstate_highest_perf:166
scaling_min_freq:550000
scaling_available_governors:performance powersave
scaling_governor:powersave
cpuinfo_max_freq:4929000
amd_pstate_lowest_nonlinear_freq:1752000
amd_pstate_max_freq:4929000
related_cpus:0
scaling_cur_freq:550000
scaling_setspeed:<unsupported>
affected_cpus:0
scaling_max_freq:4929000
cpuinfo_transition_latency:0
energy_performance_preference:performance
scaling_driver:amd-pstate-epp
cpuinfo_min_freq:550000
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next prev parent reply other threads:[~2023-07-07 13:24 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-22 23:58 [Bug 215729] New: amd-pstate driver has a much higher idle power consumption for a desktop Zen 3 CPU bugzilla-daemon
2022-03-22 23:59 ` [Bug 215729] " bugzilla-daemon
2022-03-23 0:01 ` bugzilla-daemon
2022-03-23 2:09 ` bugzilla-daemon
2022-03-23 15:35 ` bugzilla-daemon
2022-03-23 15:41 ` bugzilla-daemon
2022-03-23 15:58 ` bugzilla-daemon
2022-03-23 16:04 ` bugzilla-daemon
2022-04-28 8:49 ` bugzilla-daemon
2022-05-09 8:38 ` bugzilla-daemon
2023-07-07 13:24 ` bugzilla-daemon [this message]
2023-09-15 10:24 ` bugzilla-daemon
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