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[action] [PR:22006] [installer] Add CSTATE configuration for the AMD CPU.#22061

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mssonicbld merged 1 commit intosonic-net:202405from
mssonicbld:cherry/202405/22006
Mar 18, 2025
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[action] [PR:22006] [installer] Add CSTATE configuration for the AMD CPU.#22061
mssonicbld merged 1 commit intosonic-net:202405from
mssonicbld:cherry/202405/22006

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@mssonicbld
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Why I did it

Add CSTATE configuration for the AMD CPU to disable CPU idling.
Related to: #16339

Work item tracking
  • Microsoft ADO (number only):

How I did it

Add processor.max_cstate=1 amd_idle.max_cstate=0 to installer default grub config.

How to verify it

Boot the image. Verify the added option are present in cat /proc/cmdline command output.

Which release branch to backport (provide reason below if selected)

  • 201811
  • 201911
  • 202006
  • 202012
  • 202106
  • 202111
  • 202205
  • 202211
  • 202305

Tested branch (Please provide the tested image version)

Description for the changelog

Link to config_db schema for YANG module changes

A picture of a cute animal (not mandatory but encouraged)

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#### Why I did it
Add CSTATE configuration for the AMD CPU to disable CPU idling.
Related to: sonic-net#16339

##### Work item tracking
- Microsoft ADO **(number only)**:

#### How I did it
Add `processor.max_cstate=1 amd_idle.max_cstate=0` to installer default grub config.

#### How to verify it
Boot the image. Verify the added option are present in `cat /proc/cmdline` command output.

<!--
If PR needs to be backported, then the PR must be tested against the base branch and the earliest backport release branch and provide tested image version on these two branches. For example, if the PR is requested for master, 202211 and 202012, then the requester needs to provide test results on master and 202012.
-->

#### Which release branch to backport (provide reason below if selected)

<!--
- Note we only backport fixes to a release branch, *not* features!
- Please also provide a reason for the backporting below.
- e.g.
- [x] 202006
-->

- [ ] 201811
- [ ] 201911
- [ ] 202006
- [ ] 202012
- [ ] 202106
- [ ] 202111
- [ ] 202205
- [ ] 202211
- [ ] 202305

#### Tested branch (Please provide the tested image version)

<!--
- Please provide tested image version
- e.g.
- [x] 20201231.100
-->

- [ ] <!-- image version 1 -->
- [ ] <!-- image version 2 -->

#### Description for the changelog
<!--
Write a short (one line) summary that describes the changes in this
pull request for inclusion in the changelog:
-->

<!--
 Ensure to add label/tag for the feature raised. example - PR#2174 under sonic-utilities repo. where, Generic Config and Update feature has been labelled as GCU.
-->

#### Link to config_db schema for YANG module changes
<!--
Provide a link to config_db schema for the table for which YANG model
is defined
Link should point to correct section on https://github.com/Azure/sonic-buildimage/blob/master/src/sonic-yang-models/doc/Configuration.md
-->

#### A picture of a cute animal (not mandatory but encouraged)
@mssonicbld
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Original PR: #22006

@mssonicbld
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/azp run Azure.sonic-buildimage

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Azure Pipelines successfully started running 1 pipeline(s).

@mssonicbld mssonicbld merged commit fab9aaf into sonic-net:202405 Mar 18, 2025
18 checks passed
patrickmacarthur pushed a commit to patrickmacarthur/sonic-buildimage that referenced this pull request Aug 6, 2025
```<br>* c9bc273 - (HEAD -> 202405) Merge branch '202405' of https://github.com/sonic-net/sonic-buildimage into 202405 (2025-03-19) [Sonic Automation]
* fab9aaf - (head/202405) [installer] Add CSTATE configuration for the AMD CPU. (sonic-net#22061) (2025-03-19) [mssonicbld]<br>```
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