22 Sep
2022
22 Sep
'22
4:36 p.m.
On 9/22/22 08:53, Rafael J. Wysocki wrote:
On Thu, Sep 22, 2022 at 5:36 PM Borislav Petkov bp@alien8.de wrote:
On Thu, Sep 22, 2022 at 05:21:21PM +0200, Rafael J. Wysocki wrote:
Well, it can be forced to use ACPI idle instead.
Yeah, I did that earlier. The dummy IO read in question costs ~3K on average on my Coffeelake box here.
Well, that's the cost of forcing something non-default.
Just to be clear: The _original_ AMD Zen problem that this thread is addressing is from a *default* configuration, right? It isn't that someone overrode the idle defaults?