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From: Auger Eric <eric.auger@redhat.com>
To: Sinan Kaya <okaya@codeaurora.org>,
	Alex Williamson <alex.williamson@redhat.com>
Cc: kvm@vger.kernel.org, linux-kernel@vger.kernel.org,
	jcm@redhat.com,
	"linux-pci@vger.kernel.org" <linux-pci@vger.kernel.org>
Subject: Re: [PATCH] vfio/pci: Virtualize Maximum Payload Size
Date: Thu, 21 Sep 2017 08:36:30 +0200	[thread overview]
Message-ID: <d6f4c641-c9c1-255a-18e5-e7956bbcac6a@redhat.com> (raw)
In-Reply-To: <2c094ad6-4641-ebee-7faa-21ad9beeca72@codeaurora.org>

Hi Sinan,

On 20/09/2017 18:29, Sinan Kaya wrote:
> On 9/20/2017 12:11 PM, Alex Williamson wrote:
>> My impression is that the issue would be inefficiency.  There should be
>> nothing functionally wrong with a read request less than MPS, but we're
>> not "filling" the TLP as much as the topology allows.  Is that your
>> understanding as well, Sinan?
> 
> That's my understanding as well. It would be a performance hit to use a
> value less than MPS.
> 
> 

Thank you for your explanations.

best Regards

Eric

  reply	other threads:[~2017-09-21  6:36 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-09-19 16:58 Alex Williamson
2017-09-19 17:50 ` Auger Eric
2017-09-19 20:20   ` Alex Williamson
2017-09-20  7:59     ` Auger Eric
2017-09-20 13:01       ` Sinan Kaya
2017-09-20 13:02         ` Sinan Kaya
2017-09-20 14:26         ` Auger Eric
2017-09-20 15:04           ` Sinan Kaya
2017-09-20 16:11           ` Alex Williamson
2017-09-20 16:29             ` Sinan Kaya
2017-09-21  6:36               ` Auger Eric [this message]
2017-09-21  6:37 ` Auger Eric

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