From: Sinan Kaya <okaya@codeaurora.org>
To: Alex Williamson <alex.williamson@redhat.com>,
Auger Eric <eric.auger@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: Wed, 20 Sep 2017 12:29:26 -0400 [thread overview]
Message-ID: <2c094ad6-4641-ebee-7faa-21ad9beeca72@codeaurora.org> (raw)
In-Reply-To: <20170920101133.33b68d8f@w520.home>
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.
--
Sinan Kaya
Qualcomm Datacenter Technologies, Inc. as an affiliate of Qualcomm Technologies, Inc.
Qualcomm Technologies, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project.
next prev parent reply other threads:[~2017-09-20 16:29 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-09-19 16:58 [PATCH] vfio/pci: Virtualize Maximum Payload Size 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 [this message]
2017-09-21 6:36 ` Auger Eric
2017-09-21 6:37 ` Auger Eric
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