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Date:   Thu, 25 Apr 2019 02:15:49 +0000
From:   "Singh, Brijesh" <brijesh.singh@....com>
To:     Steve Rutherford <srutherford@...gle.com>
CC:     "Singh, Brijesh" <brijesh.singh@....com>,
        "kvm@...r.kernel.org" <kvm@...r.kernel.org>,
        "qemu-devel@...gnu.org" <qemu-devel@...gnu.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>,
        "H. Peter Anvin" <hpa@...or.com>,
        Paolo Bonzini <pbonzini@...hat.com>,
        Radim Krčmář <rkrcmar@...hat.com>,
        Joerg Roedel <joro@...tes.org>, Borislav Petkov <bp@...e.de>,
        "Lendacky, Thomas" <Thomas.Lendacky@....com>,
        "x86@...nel.org" <x86@...nel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [RFC PATCH v1 00/10] Add AMD SEV guest live migration support


On 4/24/19 7:18 PM, Steve Rutherford wrote:
> Do you mean MiB/s, MB/s or Mb/s? Since you are talking about network
> speeds, sometimes these get conflated.

It's megabits/sec. The QMP query-migration command shows the throughput
in Mbits/s. It includes PSP command execution and the network write.
Most of the time is spent in PSP FW. I have not performed raw PSP
command benchmark yet but I believe SEV FW 0.17 may reproduce up to
12Mbits/s. I will update thread after I finish the further performance
breakdown.

-Brijesh

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