From: David Vernet <void@manifault.com>
To: linux-kernel@vger.kernel.org
Cc: peterz@infradead.org, mingo@redhat.com, juri.lelli@redhat.com,
vincent.guittot@linaro.org, dietmar.eggemann@arm.com,
rostedt@goodmis.org, bsegall@google.com, mgorman@suse.de,
bristot@redhat.com, vschneid@redhat.com, tj@kernel.org,
roman.gushchin@linux.dev, gautham.shenoy@amd.com,
kprateek.nayak@amd.com, aaron.lu@intel.com,
wuyun.abel@bytedance.com, kernel-team@meta.com,
aboorvad@linux.vnet.ibm.com, yu.c.chen@intel.com
Subject: Re: [PATCH v3 0/7] sched: Implement shared runqueue in CFS
Date: Mon, 4 Dec 2023 13:30:01 -0600 [thread overview]
Message-ID: <20231204193001.GA53255@maniforge> (raw)
In-Reply-To: <20230809221218.163894-1-void@manifault.com>
On Wed, Aug 09, 2023 at 05:12:11PM -0500, David Vernet wrote:
> Changes
> -------
>
> This is v3 of the shared runqueue patchset. This patch set is based off
> of commit 88c56cfeaec4 ("sched/fair: Block nohz tick_stop when cfs
> bandwidth in use") on the sched/core branch of tip.git.
>
> v1 (RFC): https://lore.kernel.org/lkml/20230613052004.2836135-1-void@manifault.com/
> v2: https://lore.kernel.org/lkml/20230710200342.358255-1-void@manifault.com/
Hello everyone,
I wanted to give an update on this, as I've been promising a v4 of the
patch set for quite some time. I ran more experiments over the last few
weeks, and EEVDF has changed the performance profile of the SHARED_RUNQ
feature quite a bit compared to what we were observing with CFS. We may
pick this back up again at a later point, but for now we're going to
take a step back and re-evaluate.
Thanks,
David
prev parent reply other threads:[~2023-12-04 19:30 UTC|newest]
Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-08-09 22:12 [PATCH v3 0/7] sched: Implement shared runqueue in CFS David Vernet
2023-08-09 22:12 ` [PATCH v3 1/7] sched: Expose move_queued_task() from core.c David Vernet
2023-08-09 22:12 ` [PATCH v3 2/7] sched: Move is_cpu_allowed() into sched.h David Vernet
2023-08-09 22:12 ` [PATCH v3 3/7] sched: Check cpu_active() earlier in newidle_balance() David Vernet
2023-08-09 22:12 ` [PATCH v3 4/7] sched: Enable sched_feat callbacks on enable/disable David Vernet
2023-08-09 22:12 ` [PATCH v3 5/7] sched/fair: Add SHARED_RUNQ sched feature and skeleton calls David Vernet
2023-08-09 22:12 ` [PATCH v3 6/7] sched: Implement shared runqueue in CFS David Vernet
2023-08-10 7:11 ` kernel test robot
2023-08-10 7:41 ` kernel test robot
2023-08-30 6:46 ` K Prateek Nayak
2023-08-31 1:34 ` David Vernet
2023-08-31 3:47 ` K Prateek Nayak
2023-08-09 22:12 ` [PATCH v3 7/7] sched: Shard per-LLC shared runqueues David Vernet
2023-08-09 23:46 ` kernel test robot
2023-08-10 0:12 ` David Vernet
2023-08-10 7:11 ` kernel test robot
2023-08-30 6:17 ` Chen Yu
2023-08-31 0:01 ` David Vernet
2023-08-31 10:45 ` Chen Yu
2023-08-31 19:14 ` David Vernet
2023-09-23 6:35 ` Chen Yu
2023-08-17 8:42 ` [PATCH v3 0/7] sched: Implement shared runqueue in CFS Gautham R. Shenoy
2023-08-18 5:03 ` David Vernet
2023-08-18 8:49 ` Gautham R. Shenoy
2023-08-24 11:14 ` Gautham R. Shenoy
2023-08-24 22:51 ` David Vernet
2023-08-30 9:56 ` K Prateek Nayak
2023-08-31 2:32 ` David Vernet
2023-08-31 4:21 ` K Prateek Nayak
2023-08-31 10:45 ` [RFC PATCH 0/3] DO NOT MERGE: Breaking down the experimantal diff K Prateek Nayak
2023-08-31 10:45 ` [RFC PATCH 1/3] sched/fair: Move SHARED_RUNQ related structs and definitions into sched.h K Prateek Nayak
2023-08-31 10:45 ` [RFC PATCH 2/3] sched/fair: Improve integration of SHARED_RUNQ feature within newidle_balance K Prateek Nayak
2023-08-31 18:45 ` David Vernet
2023-08-31 19:47 ` K Prateek Nayak
2023-08-31 10:45 ` [RFC PATCH 3/3] sched/fair: Add a per-shard overload flag K Prateek Nayak
2023-08-31 19:11 ` David Vernet
2023-08-31 20:23 ` K Prateek Nayak
2023-09-29 17:01 ` David Vernet
2023-10-04 4:21 ` K Prateek Nayak
2023-10-04 17:20 ` David Vernet
2023-10-05 3:50 ` K Prateek Nayak
2023-09-27 4:23 ` K Prateek Nayak
2023-09-27 6:59 ` Chen Yu
2023-09-27 8:36 ` K Prateek Nayak
2023-09-28 8:41 ` Chen Yu
2023-10-03 21:05 ` David Vernet
2023-10-07 2:10 ` Chen Yu
2023-09-27 13:08 ` David Vernet
2023-11-27 8:28 ` [PATCH v3 0/7] sched: Implement shared runqueue in CFS Aboorva Devarajan
2023-11-27 19:49 ` David Vernet
2023-12-07 6:00 ` Aboorva Devarajan
2023-12-04 19:30 ` David Vernet [this message]
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