Public bug reported:
SRU Justification:
[Impact]
When system profile is set to "Performance Per Watt (DAPC)" using BIOS
setting, then install Ubuntu-22.04 and boot into OS then check the
bootup time.
How reproducible: Always
Steps to Reproduce:
1. Set system profile as "Performance Per Watt (DAPC)" from BIOS setting
2. Install Ubuntu-22.04
3. Boot into OS
4. Check the bootup time
Expected results:
OS should boot normally and need to consume less bootup time
[Fix]
13fdbc8b8da6 cpufreq: ACPI: Defer setting boost MSRs
[Test Plan]
1. Set system profile as "Performance Per Watt (DAPC)" from BIOS setting
2. Install Ubuntu-22.04
3. Boot into OS
4. Check the bootup time
[Where problems could occur]
Regression risk: low to medium.
[Other Info]
** Affects: linux (Ubuntu)
Importance: Low
Assignee: Michael Reed (mreed8855)
Status: In Progress
** Affects: linux (Ubuntu Jammy)
Importance: Low
Assignee: Michael Reed (mreed8855)
Status: In Progress
** Also affects: linux (Ubuntu Jammy)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu)
Status: New => In Progress
** Changed in: linux (Ubuntu Jammy)
Status: New => In Progress
** Changed in: linux (Ubuntu)
Importance: Undecided => Low
** Changed in: linux (Ubuntu Jammy)
Importance: Undecided => Low
** Changed in: linux (Ubuntu)
Assignee: (unassigned) => Michael Reed (mreed8855)
** Changed in: linux (Ubuntu Jammy)
Assignee: (unassigned) => Michael Reed (mreed8855)
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https://bugs.launchpad.net/bugs/2008527
Title:
[SRU]When system profile is set to "Performance per Watt (DAPC)" in
BIOS, Bootup time is taking more
Status in linux package in Ubuntu:
In Progress
Status in linux source package in Jammy:
In Progress
Bug description:
SRU Justification:
[Impact]
When system profile is set to "Performance Per Watt (DAPC)" using BIOS
setting, then install Ubuntu-22.04 and boot into OS then check the
bootup time.
How reproducible: Always
Steps to Reproduce:
1. Set system profile as "Performance Per Watt (DAPC)" from BIOS setting
2. Install Ubuntu-22.04
3. Boot into OS
4. Check the bootup time
Expected results:
OS should boot normally and need to consume less bootup time
[Fix]
13fdbc8b8da6 cpufreq: ACPI: Defer setting boost MSRs
[Test Plan]
1. Set system profile as "Performance Per Watt (DAPC)" from BIOS setting
2. Install Ubuntu-22.04
3. Boot into OS
4. Check the bootup time
[Where problems could occur]
Regression risk: low to medium.
[Other Info]
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2008527/+subscriptions
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