From: Christian Loehle <christian.loehle@arm.com>
To: linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org,
rafael@kernel.org, peterz@infradead.org
Cc: juri.lelli@redhat.com, mingo@redhat.com,
dietmar.eggemann@arm.com, vschneid@redhat.com,
vincent.guittot@linaro.org, Johannes.Thumshirn@wdc.com,
adrian.hunter@intel.com, ulf.hansson@linaro.org,
bvanassche@acm.org, andres@anarazel.de, asml.silence@gmail.com,
linux-block@vger.kernel.org, io-uring@vger.kernel.org,
qyousef@layalina.io, dsmythies@telus.net, axboe@kernel.dk
Subject: Re: [RFT RFC PATCH 0/8] cpufreq: cpuidle: Remove iowait behaviour
Date: Thu, 5 Sep 2024 13:31:36 +0100 [thread overview]
Message-ID: <16591e9c-1bfa-4fd0-811a-94ff4f032597@arm.com> (raw)
In-Reply-To: <20240905092645.2885200-1-christian.loehle@arm.com>
On 9/5/24 10:26, Christian Loehle wrote:
> I wanted to share my current status after working on the schedutil
> iowait boost issue for a while now. This is what I consider the best
> solution, happy for anyone to share thoughts and test results (it's
> simply impossible to cover them all).
> I'm hoping to remove some (bad) heuristics that have been in the kernel
> for a long time and are seemingly impossible to evolve. Since the
> introduction of these heuristics IO workloads have changed and those
> heuristics can be removed while only really affecting synthetic
> benchmarks.
Lots of related discussion is also here:
[PATCHSET v4 0/4] Split iowait into two states
https://lore.kernel.org/lkml/20240416121526.67022-1-axboe@kernel.dk/
[PATCHSET v6 0/4] Split iowait into two states
https://lore.kernel.org/lkml/20240819154259.215504-1-axboe@kernel.dk/
prev parent reply other threads:[~2024-09-05 12:31 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-09-05 9:26 [RFT RFC PATCH 0/8] cpufreq: cpuidle: Remove iowait behaviour Christian Loehle
2024-09-05 9:26 ` [RFC PATCH 1/8] cpuidle: menu: Remove iowait influence Christian Loehle
2024-09-30 14:58 ` Rafael J. Wysocki
2024-09-05 9:26 ` [RFC PATCH 2/8] cpuidle: Prefer teo over menu governor Christian Loehle
2024-09-30 15:06 ` Rafael J. Wysocki
2024-09-30 16:12 ` Christian Loehle
2024-09-30 16:42 ` Rafael J. Wysocki
2024-09-05 9:26 ` [RFC PATCH 3/8] TEST: cpufreq/schedutil: Linear iowait boost step Christian Loehle
2024-09-05 9:26 ` [RFC PATCH 4/8] TEST: cpufreq/schedutil: iowait boost cap sysfs Christian Loehle
2024-09-05 9:26 ` [RFC PATCH 5/8] cpufreq/schedutil: Remove iowait boost Christian Loehle
2024-09-30 16:34 ` Rafael J. Wysocki
2024-10-03 9:10 ` Christian Loehle
2024-10-03 9:47 ` Quentin Perret
2024-10-03 10:30 ` Christian Loehle
2024-10-05 0:39 ` Andres Freund
2024-10-09 9:54 ` Christian Loehle
2024-09-05 9:26 ` [RFC PATCH 6/8] cpufreq: intel_pstate: " Christian Loehle
2024-09-12 11:22 ` [RFC PATCH] TEST: cpufreq: intel_pstate: sysfs iowait_boost_cap Christian Loehle
2024-09-30 18:03 ` [RFC PATCH 6/8] cpufreq: intel_pstate: Remove iowait boost Rafael J. Wysocki
2024-09-30 20:35 ` srinivas pandruvada
2024-10-01 9:57 ` Christian Loehle
2024-10-01 14:46 ` srinivas pandruvada
2024-09-05 9:26 ` [RFC PATCH 7/8] cpufreq: Remove SCHED_CPUFREQ_IOWAIT update Christian Loehle
2024-09-05 9:26 ` [RFC PATCH 8/8] io_uring: Do not set iowait before sleeping Christian Loehle
2024-09-05 12:31 ` Christian Loehle [this message]
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