From owner-freebsd-current@freebsd.org  Sun May 28 07:49:04 2017
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 id 1dEswe-000LB8-IW; Sun, 28 May 2017 10:49:00 +0300
Subject: Re: NFS client perf. degradation when SCHED_ULE is used (was when SMP
 enabled)
To: Rick Macklem <rmacklem@uoguelph.ca>,
 "freebsd-current@freebsd.org" <freebsd-current@FreeBSD.org>
Cc: "cem@freebsd.org" <cem@FreeBSD.org>, "jeff@freebsd.org" <jeff@FreeBSD.org>,
 Ryan Stone <rstone@FreeBSD.org>
References: <YTXPR01MB01894DA2879C95E634C792D9DDFC0@YTXPR01MB0189.CANPRD01.PROD.OUTLOOK.COM>
 <YTXPR01MB0189FAF118B27C0E6F9B169EDDFD0@YTXPR01MB0189.CANPRD01.PROD.OUTLOOK.COM>
From: Andriy Gapon <avg@FreeBSD.org>
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Date: Sun, 28 May 2017 10:48:00 +0300
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On 28/05/2017 01:20, Rick Macklem wrote:
> After poking at this some more, it appears that r312426 is the main cause of
> this degradation.

Rick,

thank you for the investigation!
A quick question before a longer reply: what network driver do you use in your
test setup?  Is it ixl by a chance?

-- 
Andriy Gapon