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Message-ID: <16591e9c-1bfa-4fd0-811a-94ff4f032597@arm.com> Date: Thu, 5 Sep 2024 13:31:36 +0100 From: Christian Loehle <christian.loehle@....com> To: linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org, rafael@...nel.org, peterz@...radead.org Cc: juri.lelli@...hat.com, mingo@...hat.com, dietmar.eggemann@....com, vschneid@...hat.com, vincent.guittot@...aro.org, Johannes.Thumshirn@....com, adrian.hunter@...el.com, ulf.hansson@...aro.org, bvanassche@....org, andres@...razel.de, asml.silence@...il.com, linux-block@...r.kernel.org, io-uring@...r.kernel.org, qyousef@...alina.io, dsmythies@...us.net, axboe@...nel.dk Subject: Re: [RFT RFC PATCH 0/8] cpufreq: cpuidle: Remove iowait behaviour 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/
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