linux-kernel - Re: [RESEND][PATCH v8 0/7] Preparatory changes for Proxy Execution v8

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Date: Wed, 28 Feb 2024 22:19:10 -0800
From: John Stultz <jstultz@...gle.com>
To: K Prateek Nayak <kprateek.nayak@....com>
Cc: LKML <linux-kernel@...r.kernel.org>, Joel Fernandes <joelaf@...gle.com>, 
	Qais Yousef <qyousef@...gle.com>, Ingo Molnar <mingo@...hat.com>, 
	Peter Zijlstra <peterz@...radead.org>, Juri Lelli <juri.lelli@...hat.com>, 
	Vincent Guittot <vincent.guittot@...aro.org>, Dietmar Eggemann <dietmar.eggemann@....com>, 
	Valentin Schneider <vschneid@...hat.com>, Steven Rostedt <rostedt@...dmis.org>, 
	Ben Segall <bsegall@...gle.com>, Zimuzo Ezeozue <zezeozue@...gle.com>, 
	Youssef Esmat <youssefesmat@...gle.com>, Mel Gorman <mgorman@...e.de>, 
	Daniel Bristot de Oliveira <bristot@...hat.com>, Will Deacon <will@...nel.org>, Waiman Long <longman@...hat.com>, 
	Boqun Feng <boqun.feng@...il.com>, "Paul E. McKenney" <paulmck@...nel.org>, 
	Metin Kaya <Metin.Kaya@....com>, Xuewen Yan <xuewen.yan94@...il.com>, 
	Thomas Gleixner <tglx@...utronix.de>, kernel-team@...roid.com
Subject: Re: [RESEND][PATCH v8 0/7] Preparatory changes for Proxy Execution v8

On Wed, Feb 28, 2024 at 9:37 AM 'K Prateek Nayak' via kernel-team
<kernel-team@...roid.com> wrote:
> I got a chance to test the whole of v8 patches on the same dual socket
> 3rd Generation EPYC system:
>
> tl;dr
>
> - There is a slight regression in hackbench but instead of the 10x
>   blowup seen previously, it is only around 5% with overloaded case
>   not regressing at all.
>
> - A small but consistent (~2-3%) regression is seen in tbench and
>   netperf.

Once again, thank you so much for your testing and reporting of the
data! I really appreciate it!

Do you mind sharing exactly how you're running the benchmarks? (I'd
like to try to reproduce these locally (though my machine is much
smaller).

I'm guessing the hackbench one is the same command you shared earlier with v6?

thanks
-john