linux-kernel - Re: [PATCH v18 00/33] x86,fs/resctrl: Support AMD Assignable Bandwidth Monitoring Counters (ABMC)

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Message-ID: <aRz9+475zDOEK46G@x1>
Date: Tue, 18 Nov 2025 15:15:07 -0800
From: Drew Fustini <fustini@...nel.org>
To: Babu Moger <bmoger@....com>
Cc: Babu Moger <babu.moger@....com>, corbet@....net, tony.luck@...el.com,
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Subject: Re: [PATCH v18 00/33] x86,fs/resctrl: Support AMD Assignable
 Bandwidth Monitoring Counters (ABMC)

On Mon, Nov 17, 2025 at 09:07:20AM -0600, Babu Moger wrote:
> Hi Drew,
[snip]
> Looks like you are on Zen 4 system. ABMC is available on Zen 5 or later
> servers.
> 
> #lscpu
> Vendor ID:                AuthenticAMD
> Model name:            AMD EPYC 9655 96-Core Processor
> CPU family:              26
> 
> Thanks for trying.
> 
> -Babu Moger

Thank for letting me know. I didn't realize until now that the last
digit is the Zen generation. Cherry Servers offer an EPYC 9255 so I'll
give that a try.

Drew