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From: Abel Wu <wuyun.abel@bytedance.com>
To: K Prateek Nayak <kprateek.nayak@amd.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Ingo Molnar <mingo@kernel.org>, Mel Gorman <mgorman@suse.de>,
	Vincent Guittot <vincent.guittot@linaro.org>,
	Dietmar Eggemann <dietmar.eggemann@arm.com>,
	Valentin Schneider <valentin.schneider@arm.com>
Cc: Josh Don <joshdon@google.com>, Chen Yu <yu.c.chen@intel.com>,
	Tim Chen <tim.c.chen@linux.intel.com>,
	"Gautham R . Shenoy" <gautham.shenoy@amd.com>,
	Aubrey Li <aubrey.li@intel.com>,
	Qais Yousef <qais.yousef@arm.com>,
	Juri Lelli <juri.lelli@redhat.com>,
	Rik van Riel <riel@surriel.com>,
	Yicong Yang <yangyicong@huawei.com>,
	Barry Song <21cnbao@gmail.com>,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH v6 0/4] sched/fair: Improve scan efficiency of SIS
Date: Thu, 16 Feb 2023 21:18:08 +0800	[thread overview]
Message-ID: <757f143b-0c5d-4dd9-f7a1-5450da3b86b5@bytedance.com> (raw)
In-Reply-To: <01eb35f2-4a34-7fbc-da48-c9558dca7212@amd.com>

Hi Prateek, thanks very much for your solid testings!

On 2/7/23 11:42 AM, K Prateek Nayak wrote:
> Hello Abel,
> 
> I've retested the patches with on the updated tip and the results
> are still promising.
> 
> tl;dr
> 
> o Hackbench sees improvements when the machine is overloaded.
> o tbench shows improvements when the machine is overloaded.
> o The unixbench regression seen previously seems to be unrelated
>    to the patch as the spawn test scores are vastly different
>    after a reboot/kexec for the same kernel.
> o Other benchmarks show slight improvements or are comparable to
>    the numbers on tip.

Cheers! Yet I still see some minor regressions in the report
below. As we discussed last time, reducing unnecessary updates
on the idle cpumask when LLC is overloaded should help.

Thanks & Best regards,
	Abel

      reply	other threads:[~2023-02-16 13:18 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-10-19 12:28 [PATCH v6 0/4] sched/fair: Improve scan efficiency of SIS Abel Wu
2022-10-19 12:28 ` [PATCH v6 1/4] sched/fair: Skip core update if task pending Abel Wu
2022-10-19 12:28 ` [PATCH v6 2/4] sched/fair: Ignore SIS_UTIL when has_idle_core Abel Wu
2022-10-19 12:28 ` [PATCH v6 3/4] sched/fair: Introduce SIS_CORE Abel Wu
2022-10-21  4:03   ` Chen Yu
2022-10-21  4:30     ` Abel Wu
2022-10-21  4:34       ` Chen Yu
2022-10-21  9:35         ` Abel Wu
2022-10-21 11:14           ` Chen Yu
2022-10-19 12:28 ` [PATCH v6 4/4] sched/fair: Deal with SIS scan failures Abel Wu
2022-11-04  7:29 ` [PATCH v6 0/4] sched/fair: Improve scan efficiency of SIS Abel Wu
2022-11-14  5:45 ` K Prateek Nayak
2022-11-15  8:31   ` Abel Wu
2022-11-15 11:28     ` K Prateek Nayak
2022-11-22 11:28       ` K Prateek Nayak
2022-11-24  3:50         ` Abel Wu
2023-02-07  3:42 ` K Prateek Nayak
2023-02-16 13:18   ` Abel Wu [this message]

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