If there is more CPU cores then OS booting is taking more time to boot the OS, and then applied below patch and checked OS booting time is reducing 10sec in 192C CPU.
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://lore.kernel.org/linux-pm/[email protected]/ Improved boot up time in Performance Per Watt (DAPC) before/after boot times results -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. 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 -- Mailing list: https://launchpad.net/~kernel-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
