From: Babu Moger <babu.moger@amd.com>
To: Ani Sinha <ani.sinha@nutanix.com>
Cc: "qemu-devel@nongnu.org" <qemu-devel@nongnu.org>,
Paolo Bonzini <pbonzini@redhat.com>,
"Singh, Brijesh" <brijesh.singh@amd.com>,
Eduardo Habkost <ehabkost@redhat.com>,
"rth@twiddle.net" <rth@twiddle.net>
Subject: Re: [PATCH] i386: pass CLZERO to guests with EPYC CPU model on AMD ZEN platform
Date: Thu, 6 Feb 2020 09:30:11 -0600 [thread overview]
Message-ID: <78f5dad9-5433-3f7c-69cb-db496b1c37a7@amd.com> (raw)
In-Reply-To: <60B21C9A-30BE-4DC0-8A1B-0BC7757BA9D7@nutanix.com>
On 2/5/20 11:53 PM, Ani Sinha wrote:
>
>
>> On Feb 6, 2020, at 11:16 AM, Ani Sinha <ani.sinha@nutanix.com> wrote:
>>
>>
>>
>>> On Feb 6, 2020, at 5:30 AM, Moger, Babu <Babu.Moger@amd.com> wrote:
>>>
>>> Ani, I am already working on it.
>>
>> Wow, I see a whole new AMD-Rome CPU model with it’s own cache info data :
>>
>> https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Flore.kernel.org%2Fqemu-devel%2F157314966312.23828.17684821666338093910.stgit%40naples-babu.amd.com%2F&data=02%7C01%7CBabu.Moger%40amd.com%7Cc566dc5cf3cc407b5ee608d7aac8d9bc%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C637165651955089264&sdata=tlafWD6m5%2BZ12cqd4vqJcWh0%2FIgly%2FPVMgAbjxK5Mog%3D&reserved=0
>
> Do you think the ROME specific guest cpu cache data will have significant impact on performance?
I have not done performance benchmarks myself. Yes. Rome is expected to
perform better than its previous generations.
next prev parent reply other threads:[~2020-02-06 15:31 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-18 9:05 [PATCH] i386: pass CLZERO to guests with EPYC CPU model on AMD ZEN platform Ani Sinha
2019-12-18 11:53 ` Paolo Bonzini
2019-12-18 15:11 ` Eduardo Habkost
2020-01-20 10:56 ` Ani Sinha
2020-02-05 22:37 ` Eduardo Habkost
2020-02-06 0:00 ` Moger, Babu
2020-02-06 5:46 ` Ani Sinha
2020-02-06 5:53 ` Ani Sinha
2020-02-06 15:30 ` Babu Moger [this message]
2020-02-06 16:03 ` Eduardo Habkost
2020-02-06 15:52 ` Eduardo Habkost
2020-02-06 15:55 ` Babu Moger
2019-12-22 7:32 ` Ani Sinha
2019-12-22 8:15 ` Paolo Bonzini
2019-12-23 8:14 ` Ani Sinha
2019-12-23 8:50 ` Ani Sinha
[not found] <yes>
2019-12-04 9:36 ` Ani Sinha
2019-12-16 9:31 ` Ani Sinha
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