Public bug reported:
[Feature Description]
ICX - intel_idle enhancement
commit a472ad2bcea4 (“intel_idle: Customize IceLake server support”)
This patch can be backported to corresponding distribution, which is
independent of the p patches mentioned in this jira ticket. The benefit of
backporting the patch is that:
1. It is an optimization on ICX performance
2. it allows the user to have find-grained control over different C-states
3. distribution such as Redhat has found performance downgrading without this
patch.
4. DCG team has request to have this patch backported because they prefer to
use intel_idle driver (without this patch, the acpi_idle driver will be used on
ICX on centos 7.4/ubuntu 20.04.
Other bugs:
See other bugs LP#1834579
Target Kernel: 5.9
Target Release: 21.04/20.04.2
[HW/SW Information]
Ice Lake Server platform
[Business Justification]
Function enabling
** Affects: intel
Importance: Undecided
Status: Fix Committed
** Affects: ubuntu
Importance: Undecided
Status: New
** Tags: intel-kernel-20.04.2 intel-kernel-21.04
** Also affects: ubuntu
Importance: Undecided
Status: New
** Changed in: intel
Status: New => Fix Committed
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https://bugs.launchpad.net/bugs/1914012
Title:
[ICX] Intel_idle enhancement
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