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From: Tom Gebhardt <tomge68@gmail.com>
To: Christian Loehle <christian.loehle@arm.com>
Cc: Qais Yousef <qyousef@layalina.io>,
	linux-kernel@vger.kernel.org,
	Peter Zijlstra <peterz@infradead.org>,
	Ingo Molnar <mingo@redhat.com>,
	Vincent Guittot <vincent.guittot@linaro.org>
Subject: Re: [PATCH v2 00/13] sched/fair/schedutil: Better manage system response time
Date: Mon, 25 May 2026 09:25:03 +0200	[thread overview]
Message-ID: <354f22c2bdb7b59933ecbe75ffbdcc81.tomge68@gmail.com> (raw)
In-Reply-To: <a7645295-be9d-48d0-9490-36adf0b69f44@arm.com>

Hi Christian,

Here is the patch I applied on top of rpi-7.0.y:

  https://gist.github.com/Kletternaut/640445f82d2c1f50d5b19d2f6803b395

It is a single combined patch containing marioroy's 10-patch ttwu series plus Vincent's util_est refactoring (with a manual context fixup in the
DELAY_DEQUEUE hunk -- see previous mail for details).

To reproduce:

  git clone https://github.com/raspberrypi/linux.git -b rpi-7.0.y --depth=1
  cd linux
  curl -L https://gist.githubusercontent.com/Kletternaut/640445f82d2c1f50d5b19d2f6803b395/raw/0001-sched-ttwu-patch-series-Vincent-s-util_est-refactori.patch | git apply

The benchmark I used:

  stress-ng --pipe 4 --metrics-brief --timeout 20

(stress-ng 0.15.06, 4 workers, 20 s, bogo ops/s real time)

Tom

  parent reply	other threads:[~2026-05-25  7:25 UTC|newest]

Thread overview: 47+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-05-04  1:59 [PATCH v2 00/13] sched/fair/schedutil: Better manage system response time Qais Yousef
2026-05-04  1:59 ` [PATCH v2 01/13] sched: cpufreq: Rename map_util_perf to sugov_apply_dvfs_headroom Qais Yousef
2026-05-04  1:59 ` [PATCH v2 02/13] sched/pelt: Add a new function to approximate the future util_avg value Qais Yousef
2026-05-04  1:59 ` [PATCH v2 03/13] sched/pelt: Add a new function to approximate runtime to reach given util Qais Yousef
2026-06-04  8:50   ` Vincent Guittot
2026-05-04  1:59 ` [PATCH v2 04/13] sched/fair: Remove magic hardcoded margin in fits_capacity() Qais Yousef
2026-06-04 10:08   ` Vincent Guittot
2026-05-04  1:59 ` [PATCH v2 05/13] sched: cpufreq: Remove magic 1.25 headroom from sugov_apply_dvfs_headroom() Qais Yousef
2026-05-04  1:59 ` [PATCH v2 06/13] sched/fair: Extend util_est to improve rampup time Qais Yousef
2026-05-04  1:59 ` [PATCH v2 07/13] sched/fair: util_est: Take into account periodic tasks Qais Yousef
2026-05-04  1:59 ` [PATCH v2 RFC 08/13] sched/qos: Add a new sched-qos interface Qais Yousef
2026-05-06 20:38   ` Tim Chen
2026-05-07  9:55     ` Qais Yousef
2026-05-07 14:20       ` Chen, Yu C
2026-05-09  9:39         ` Qais Yousef
2026-05-11 10:57   ` Peter Zijlstra
2026-05-12  7:58     ` Qais Yousef
2026-05-12  8:30       ` Peter Zijlstra
2026-05-12  8:47         ` Qais Yousef
2026-05-19  9:47   ` Peter Zijlstra
2026-05-19 10:56     ` Qais Yousef
2026-05-04  1:59 ` [PATCH v2 09/13] sched/qos: Add rampup multiplier QoS Qais Yousef
2026-05-11 11:03   ` Peter Zijlstra
2026-05-12  7:59     ` Qais Yousef
2026-05-12  8:37       ` Christian Loehle
2026-05-12  8:53         ` Qais Yousef
2026-05-04  2:00 ` [PATCH v2 10/13] sched/fair: Disable util_est when rampup_multiplier is 0 Qais Yousef
2026-05-04  2:00 ` [PATCH v2 11/13] sched/fair: Don't mess with util_avg post init Qais Yousef
2026-05-04  2:00 ` [PATCH v2 12/13] sched/fair: Call update_util_est() after dequeue_entities() Qais Yousef
2026-05-04  2:00 ` [PATCH v2 RFC 13/13] sched/pelt: Always allow load updates Qais Yousef
2026-05-11 17:58 ` [PATCH v2 00/13] sched/fair/schedutil: Better manage system response time John Stultz
2026-05-12  8:01   ` Qais Yousef
2026-05-13 15:09 ` Tom Gebhardt
2026-05-15  1:42   ` Qais Yousef
2026-05-15  8:24     ` Tom Gebhardt
2026-05-15 10:01       ` Christian Loehle
2026-05-15 13:57         ` Tom Gebhardt
2026-05-16 13:43           ` Christian Loehle
2026-05-19  7:46             ` Tom Gebhardt
2026-05-25  7:25             ` Tom Gebhardt [this message]
2026-05-28  7:38               ` Christian Loehle
2026-05-28 11:08                 ` Tom Gebhardt
2026-05-16  3:01       ` Qais Yousef
2026-05-28 12:50         ` Tom Gebhardt
2026-05-29  1:43           ` Qais Yousef
2026-05-29  7:53             ` Tom Gebhardt
2026-05-31  2:35               ` Qais Yousef

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