Ubuntu
linux package

[SRU]With "Performance per Watt (DAPC)" enabled in the BIOS, Bootup time is taking longer than expected

Bug #2008527 reported by Michael Reed
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
linux (Ubuntu)
In Progress
Low
Michael Reed
Jammy
Fix Released
Low
Michael Reed
Kinetic
Fix Released
Low
Michael Reed

Bug Description

SRU Justification:

[Impact]

A Dell system that has a profile setting of "Performance Per Watt (DAPC)" enabled in the BIOS and running Ubuntu-22.04 does not boot into OS as quickly as expected.

How reproducible:

Steps to Reproduce:

1. On the Dell system enable "Performance Per Watt (DAPC)" from BIOS.
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]
Jammy
https://code.launchpad.net/~mreed8855/ubuntu/+source/linux/+git/jammy/+ref/lp_2008527_dapc

Kinetic
https://code.launchpad.net/~mreed8855/ubuntu/+source/linux/+git/kinetic/+ref/lp_2008527_dapc_kinetic

See original description
Revision history for this message
Michael Reed (mreed8855) wrote (last edit ):

If there are many CPU cores then the OS is taking longer to boot. The applied below patch reduces 5 to 7 seconds in a system with192 CPUs.

I would request you to please consider this patch into Ubuntu-22.04 so that we can see faster os booting when cpu core count is more.

[PATCH] cpufreq: acpi: Defer setting boost MSRs
https://<email address hidden>/

Improved boot up time in Performance Per Watt (DAPC) before/after boot times results

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: nobody → Michael Reed (mreed8855)
Changed in linux (Ubuntu Jammy):
assignee: nobody → Michael Reed (mreed8855)
Revision history for this message
Michael Reed (mreed8855) wrote :

I have created a test kernel can you test it and provide feedback?

https://people.canonical.com/~mreed/dell/lp_1999883_dapc/

Revision history for this message
Michael Reed (mreed8855) wrote (last edit ):

Dell has tested test kernel at https://people.canonical.com/~mreed/dell/lp_1999883_dapc/ Dell is able to see a reduced bootup time.

No other issues observed.

Michael Reed (mreed8855)
description: updated
Michael Reed (mreed8855)
description: updated
summary: [SRU]When system profile is set to "Performance per Watt (DAPC)" in
- BIOS, Bootup time is taking more
+ BIOS, Bootup time is taking longer than expected
Michael Reed (mreed8855)
summary: - [SRU]When system profile is set to "Performance per Watt (DAPC)" in
- BIOS, Bootup time is taking longer than expected
+ [SRU]With "Performance per Watt (DAPC)" enabled in the BIOS, Bootup time
+ is taking longer than expected
Revision history for this message
Michael Reed (mreed8855) wrote :

Dell has stated that this has been tested on systems with both AMD and Intel CPU's

mproved boot up time in Performance Per Watt (DAPC) before/after boot times results,

With PATCH
====================
# systemd-analyze
Startup finished in 13.569s (kernel) + 9.136s (userspace) = 22.705s
graphical.target reached after 8.460s in userspace

# systemd-analyze
Startup finished in 13.188s (kernel) + 8.504s (userspace) = 21.692s
graphical.target reached after 8.123s in userspace

# systemd-analyze
Startup finished in 13.720s (kernel) + 9.235s (userspace) = 22.956s
graphical.target reached after 8.807s in userspace

# systemd-analyze
Startup finished in 13.967s (kernel) + 8.896s (userspace) = 22.863s
graphical.target reached after 8.489s in userspace

WithOut PATCH
====================
# systemd-analyze
Startup finished in 14.137s (kernel) + 14.879s (userspace) = 29.016s
graphical.target reached after 14.460s in userspace

# systemd-analyze
Startup finished in 14.149s (kernel) + 12.344s (userspace) = 26.494s
graphical.target reached after 11.900s in userspace

# systemd-analyze
Startup finished in 14.434s (kernel) + 13.047s (userspace) = 27.481s
graphical.target reached after 12.602s in userspace

# systemd-analyze
Startup finished in 14.462s (kernel) + 12.908s (userspace) = 27.371s
graphical.target reached after 12.481s in userspace

Revision history for this message
Michael Reed (mreed8855) wrote :

This needs to be backported to 5.19 first before 5.15. I will generate a test kernel for kinetic.

Changed in linux (Ubuntu Kinetic):
importance: Undecided → Low
status: New → In Progress
Michael Reed (mreed8855)
Changed in linux (Ubuntu Kinetic):
assignee: nobody → Michael Reed (mreed8855)
Michael Reed (mreed8855)
description: updated
Revision history for this message
Michael Reed (mreed8855) wrote :

I created, built and tested the patch for Kinetic.

https://code.launchpad.net/~mreed8855/ubuntu/+source/linux/+git/kinetic/+ref/lp_2008527_dapc_kinetic

Luke Nowakowski-Krijger (lukenow)
Changed in linux (Ubuntu Jammy):
status: In Progress → Fix Committed
Changed in linux (Ubuntu Kinetic):
status: In Progress → Fix Committed
Revision history for this message
Ubuntu Kernel Bot (ubuntu-kernel-bot) wrote :

This bug is awaiting verification that the linux/5.15.0-74.81 kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-jammy' to 'verification-done-jammy'. If the problem still exists, change the tag 'verification-needed-jammy' to 'verification-failed-jammy'.

If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you!

tags: added: kernel-spammed-jammy-linux verification-needed-jammy
Revision history for this message
Ubuntu Kernel Bot (ubuntu-kernel-bot) wrote :

This bug is awaiting verification that the linux/5.19.0-44.45 kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-kinetic' to 'verification-done-kinetic'. If the problem still exists, change the tag 'verification-needed-kinetic' to 'verification-failed-kinetic'.

If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you!

tags: added: kernel-spammed-kinetic-linux verification-needed-kinetic
Revision history for this message
Ubuntu Kernel Bot (ubuntu-kernel-bot) wrote :

This bug is awaiting verification that the linux-nvidia-5.19/5.19.0-1014.14 kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-jammy' to 'verification-done-jammy'. If the problem still exists, change the tag 'verification-needed-jammy' to 'verification-failed-jammy'.

If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you!

tags: added: kernel-spammed-jammy-linux-nvidia-5.19
Revision history for this message
Ubuntu Kernel Bot (ubuntu-kernel-bot) wrote :

This bug is awaiting verification that the linux-intel-iotg-5.15/5.15.0-1033.38~20.04.1 kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-focal' to 'verification-done-focal'. If the problem still exists, change the tag 'verification-needed-focal' to 'verification-failed-focal'.

If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you!

tags: added: kernel-spammed-focal-linux-intel-iotg-5.15 verification-needed-focal
Revision history for this message
Launchpad Janitor (janitor) wrote :
Download full text (40.5 KiB)

This bug was fixed in the package linux - 5.15.0-75.82

---------------
linux (5.15.0-75.82) jammy; urgency=medium

  * jammy/linux: 5.15.0-75.82 -proposed tracker (LP: #2023065)

  * Jammy update: v5.15.102 upstream stable release (LP: #2020393)
    - wifi: cfg80211: Partial revert "wifi: cfg80211: Fix use after free for wext"

  * Packaging resync (LP: #1786013)
    - [Packaging] resync git-ubuntu-log
    - [Packaging] resync getabis

  * fix typo in config-checks invocation (LP: #2020413)
    - [Packaging] fix typo when calling the old config-check
    - [Packaging] fix typo in 4-checks.mk

  * support python < 3.9 with annotations (LP: #2020531)
    - [Packaging] kconfig/annotations.py: support older way of merging dicts

linux (5.15.0-74.81) jammy; urgency=medium

  * jammy/linux: 5.15.0-74.81 -proposed tracker (LP: #2019420)

  * smartpqi: Update 22.04 driver to include recent bug fixes and support
    current generation devices (LP: #1998643)
    - scsi: smartpqi: Switch to attribute groups
    - scsi: smartpqi: Fix rmmod stack trace
    - scsi: smartpqi: Add PCI IDs
    - scsi: smartpqi: Enable SATA NCQ priority in sysfs
    - scsi: smartpqi: Eliminate drive spin down on warm boot
    - scsi: smartpqi: Quickly propagate path failures to SCSI midlayer
    - scsi: smartpqi: Fix a name typo and cleanup code
    - scsi: smartpqi: Fix a typo in func pqi_aio_submit_io()
    - scsi: smartpqi: Resolve delay issue with PQI_HZ value
    - scsi: smartpqi: Avoid drive spin-down during suspend
    - scsi: smartpqi: Update volume size after expansion
    - scsi: smartpqi: Speed up RAID 10 sequential reads
    - scsi: smartpqi: Expose SAS address for SATA drives
    - scsi: smartpqi: Fix NUMA node not updated during init
    - scsi: smartpqi: Fix BUILD_BUG_ON() statements
    - scsi: smartpqi: Fix hibernate and suspend
    - scsi: smartpqi: Fix lsscsi -t SAS addresses
    - scsi: smartpqi: Update version to 2.1.14-035
    - scsi: smartpqi: Fix unused variable pqi_pm_ops for clang
    - scsi: smartpqi: Stop using the SCSI pointer
    - scsi: smartpqi: Fix typo in comment
    - scsi: smartpqi: Shorten drive visibility after removal
    - scsi: smartpqi: Add controller fw version to console log
    - scsi: smartpqi: Add PCI IDs for ramaxel controllers
    - scsi: smartpqi: Close write read holes
    - scsi: smartpqi: Add driver support for multi-LUN devices
    - scsi: smartpqi: Fix PCI control linkdown system hang
    - scsi: smartpqi: Add PCI ID for Adaptec SmartHBA 2100-8i
    - scsi: smartpqi: Add PCI IDs for Lenovo controllers
    - scsi: smartpqi: Stop logging spurious PQI reset failures
    - scsi: smartpqi: Fix RAID map race condition
    - scsi: smartpqi: Add module param to disable managed ints
    - scsi: smartpqi: Update deleting a LUN via sysfs
    - scsi: smartpqi: Add ctrl ready timeout module parameter
    - scsi: smartpqi: Update copyright to current year
    - scsi: smartpqi: Update version to 2.1.18-045
    - scsi: smartpqi: Convert to host_tagset
    - scsi: smartpqi: Add new controller PCI IDs
    - scsi: smartpqi: Correct max LUN number
    - scsi: smartpqi: Change sysfs raid_level attribute to N/A for controllers
    - scsi: smar...

Changed in linux (Ubuntu Jammy):
status: Fix Committed → Fix Released
Revision history for this message
Launchpad Janitor (janitor) wrote :
Download full text (43.3 KiB)

This bug was fixed in the package linux - 5.19.0-45.46

---------------
linux (5.19.0-45.46) kinetic; urgency=medium

  * kinetic/linux: 5.19.0-45.46 -proposed tracker (LP: #2023057)

  * Kinetic update: upstream stable patchset 2023-05-23 (LP: #2020599)
    - wifi: cfg80211: Partial revert "wifi: cfg80211: Fix use after free for wext"

linux (5.19.0-44.45) kinetic; urgency=medium

  * kinetic/linux: 5.19.0-44.45 -proposed tracker (LP: #2019827)

  * Linux 5.19 amdgpu: NULL pointer on GCN2 and invalid load on GCN1
    (LP: #2018470)
    - drm/amdgpu: Fix for BO move issue

  * CVE-2023-32233
    - netfilter: nf_tables: deactivate anonymous set from preparation phase

  * CVE-2023-2612
    - SAUCE: shiftfs: prevent lock unbalance in shiftfs_create_object()

  * CVE-2023-31436
    - net: sched: sch_qfq: prevent slab-out-of-bounds in qfq_activate_agg

  * CVE-2023-1380
    - wifi: brcmfmac: slab-out-of-bounds read in brcmf_get_assoc_ies()

  * conntrack mark is not advertised via netlink (LP: #2016269)
    - netfilter: ctnetlink: revert to dumping mark regardless of event type

  * 5.19 not reporting cgroups v1 blkio.throttle.io_serviced (LP: #2016186)
    - SAUCE: blk-throttle: Fix io statistics for cgroup v1

  * [SRU] Backport request for hpwdt from upstream 6.1 to Jammy (LP: #2008751)
    - watchdog/hpwdt: Enable HP_WATCHDOG for ARM64 systems.
    - watchdog/hpwdt: Include nmi.h only if CONFIG_HPWDT_NMI_DECODING
    - [Config] Add arm64 option to CONFIG_HP_WATCHDOG

  * vmwgfx fails to reserve graphics buffer on aarch64 leading to blank display
    (LP: #2007001)
    - SAUCE: Revert "video/aperture: Disable and unregister sysfb devices via
      aperture helpers"

  * Ubuntu 22.04 raise abnormal NIC MSI-X requests with larger CPU cores (256)
    (LP: #2012335)
    - ice: Allow operation with reduced device MSI-X

  * Dell: Enable speaker mute hotkey LED indicator (LP: #2015972)
    - platform/x86: dell-laptop: Register ctl-led for speaker-mute

  * [SRU]With "Performance per Watt (DAPC)" enabled in the BIOS, Bootup time is
    taking longer than expected (LP: #2008527)
    - cpufreq: ACPI: Defer setting boost MSRs

  * [SRU][Jammy] CONFIG_PCI_MESON is not enabled (LP: #2007745)
    - [Config] arm64: Enable PCI_MESON module

  * Kinetic update: upstream stable patchset 2023-05-08 (LP: #2018948)
    - HID: asus: use spinlock to protect concurrent accesses
    - HID: asus: use spinlock to safely schedule workers
    - powerpc/mm: Rearrange if-else block to avoid clang warning
    - ARM: OMAP2+: Fix memory leak in realtime_counter_init()
    - arm64: dts: qcom: qcs404: use symbol names for PCIe resets
    - arm64: dts: qcom: msm8996-tone: Fix USB taking 6 minutes to wake up
    - arm64: dts: qcom: sm8150-kumano: Panel framebuffer is 2.5k instead of 4k
    - arm64: dts: qcom: sm6125: Reorder HSUSB PHY clocks to match bindings
    - arm64: dts: imx8m: Align SoC unique ID node unit address
    - ARM: zynq: Fix refcount leak in zynq_early_slcr_init
    - arm64: dts: mediatek: mt8183: Fix systimer 13 MHz clock description
    - arm64: dts: qcom: sdm845-db845c: fix audio codec interrupt pin name
    - arm64: dts: qcom: sc7180: correct SPMI bus addres...

Changed in linux (Ubuntu Kinetic):
status: Fix Committed → Fix Released
Revision history for this message
Ubuntu Kernel Bot (ubuntu-kernel-bot) wrote :

This bug is awaiting verification that the linux-nvidia-tegra/5.15.0-1015.15 kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-jammy' to 'verification-done-jammy'. If the problem still exists, change the tag 'verification-needed-jammy' to 'verification-failed-jammy'.

If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you!

tags: added: kernel-spammed-jammy-linux-nvidia-tegra
Revision history for this message
Ubuntu Kernel Bot (ubuntu-kernel-bot) wrote :

This bug is awaiting verification that the linux-nvidia-tegra-igx/5.15.0-1001.1 kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-jammy' to 'verification-done-jammy'. If the problem still exists, change the tag 'verification-needed-jammy' to 'verification-failed-jammy'.

If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you!

tags: added: kernel-spammed-jammy-linux-nvidia-tegra-igx
Revision history for this message
Ubuntu Kernel Bot (ubuntu-kernel-bot) wrote :

This bug is awaiting verification that the linux-azure/5.15.0-1043.50 kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-jammy' to 'verification-done-jammy'. If the problem still exists, change the tag 'verification-needed-jammy' to 'verification-failed-jammy'.

If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you!

tags: added: kernel-spammed-jammy-linux-azure
Revision history for this message
Ubuntu Kernel Bot (ubuntu-kernel-bot) wrote :

This bug is awaiting verification that the linux-aws/5.15.0-1041.46 kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-jammy' to 'verification-done-jammy'. If the problem still exists, change the tag 'verification-needed-jammy' to 'verification-failed-jammy'.

If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you!

tags: added: kernel-spammed-jammy-linux-aws
Revision history for this message
Ubuntu Kernel Bot (ubuntu-kernel-bot) wrote :

This bug is awaiting verification that the linux-aws-5.15/5.15.0-1046.51~20.04.1 kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-focal-linux-aws-5.15' to 'verification-done-focal-linux-aws-5.15'. If the problem still exists, change the tag 'verification-needed-focal-linux-aws-5.15' to 'verification-failed-focal-linux-aws-5.15'.

If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you!

tags: added: kernel-spammed-focal-linux-aws-5.15-v2 verification-needed-focal-linux-aws-5.15
Revision history for this message
Ubuntu Kernel Bot (ubuntu-kernel-bot) wrote :

This bug is awaiting verification that the linux-mtk/5.15.0-1030.34 kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-jammy-linux-mtk' to 'verification-done-jammy-linux-mtk'. If the problem still exists, change the tag 'verification-needed-jammy-linux-mtk' to 'verification-failed-jammy-linux-mtk'.

If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you!

tags: added: kernel-spammed-jammy-linux-mtk-v2 verification-needed-jammy-linux-mtk
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