From: Daniel Lezcano <daniel.lezcano@oss.qualcomm.com>
To: Linus Walleij <linusw@kernel.org>,
Russell King <linux@armlinux.org.uk>,
"Rafael J. Wysocki" <rafael@kernel.org>,
Daniel Lezcano <daniel.lezcano@kernel.org>,
Ulf Hansson <ulfh@kernel.org>,
Anna-Maria Behnsen <anna-maria@linutronix.de>,
Frederic Weisbecker <frederic@kernel.org>,
Ingo Molnar <mingo@kernel.org>, Thomas Gleixner <tglx@kernel.org>,
Arnd Bergmann <arnd@arndb.de>,
Krzysztof Kozlowski <krzk@kernel.org>,
Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2 0/2] ARM: configs: Enable the TEO cpuidle governor in multi-platform defconfigs
Date: Thu, 5 Nov 2026 16:40:34 +0100 [thread overview]
Message-ID: <bde5eafd-3018-407f-8b96-08cb04c5917a@oss.qualcomm.com> (raw)
In-Reply-To: <20261105-multi-timers-cpufreq-cpuidle-v2-0-2df7a17f4835@kernel.org>
On 11/5/26 13:10, Linus Walleij wrote:
> Enable the Timer Events Oriented (TEO) cpuidle governor in the ARM
> multi_v5 and multi_v7 defconfigs.
>
> The upsides of the TEO governor are described in
> commit b26bf6ab716f27955e2a503ffca1691582127cbb
> "cpuidle: New timer events oriented governor for tickless systems"
> by Rafael.
>
> We need to gain some traction for this governor.
>
> Both defconfigs already enable CPU_IDLE and NO_HZ_IDLE. Selecting
> CPU_IDLE_GOV_TEO suppresses Kconfig's automatic menu selection, so TEO
> becomes the default governor on these tickless configurations.
>
> Leave multi_v4t_defconfig unchanged. It uses periodic ticks, which
> select the ladder governor and give it a higher runtime rating than
> TEO. Enabling TEO alone would not make it the default.
>
> Configuration generation was checked for both patches. No hardware
> runtime testing was performed.
>
> Prepared with OpenAI Codex assistance.
>
> Signed-off-by: Linus Walleij <linusw@kernel.org>
Reviewed-by: Daniel Lezcano <daniel.lezcano@oss.qualcomm.com>
prev parent reply other threads:[~2026-11-05 15:40 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-11-05 12:10 Linus Walleij
2026-11-05 12:10 ` [PATCH v2 1/2] ARM: configs: multi_v5: Enable the TEO cpuidle governor Linus Walleij
2026-11-05 16:44 ` Krzysztof Kozlowski
2026-11-05 12:10 ` [PATCH v2 2/2] ARM: configs: multi_v7: " Linus Walleij
2026-11-05 16:44 ` Krzysztof Kozlowski
2026-11-05 15:40 ` Daniel Lezcano [this message]
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