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Message-ID: <B12A4934-AD7A-4F8E-A2FB-229542C1A098@intel.com>
Date: Sat, 12 Nov 2022 23:32:47 +0000
From: "Luck, Tony" <tony.luck@...el.com>
To: Borislav Petkov <bp@...en8.de>
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Subject: Re: [PATCH v2 12/14] platform/x86/intel/ifs: Add current_batch sysfs
entry
> Btw, do you guys really want to run this in production?
Absolutely yes.
> As in, are you really that confident that all those test sequence
> executions really do not affect other CPU execution at all?
Tests may draw a lot of power, so prevent
other cores going into turbo frequency states.
But otherwise no effect.
> Because if this is going to be run during downtime, as Thiago says, then
> you can just as well use debugfs for this. And then there's no need to
> cast any API in stone and so on.
Did Thiago say “during downtime”? I think
he talked about some users opportunistic
use of scan tests. But that’s far from only
during downtime. We fully expect CSPs to
run these scans periodically on production
machines.
-Tony
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