I am following a video on setting up Qemu/KVM. Setting up of tuned, I am having a problem with missing parameters. How can I correct these errors?

Question

In setting up Qemu and KVM: I received the following notification.  I have seen several others with this same problem, but I have not been able to find a post with a resolution to implement.

$ sudo tuned-adm profile virtual-host
$ tuned-adm active
Current active profile: virtual-host
$ sudo tuned-adm verify Verification failed, current system settings differ from the preset profile.
You can mostly fix this by restarting the Tuned daemon, e.g.: systemctl restart tuned
or
service tuned restart Sometimes (if some plugins like bootloader are used) a reboot may be required.
See tuned log file ('/var/log/tuned/tuned.log') for details.

These had no effect.

I have encountered the following errors: Errors in '/var/log/tuned/tuned.log', :

2024-06-26 10:39:06,158 ERROR tuned.plugins.plugin_sysctl: Failed to read sysctl parameter 'kernel.sched_min_granularity_ns', the parameter does not exist.
2024-06-26 10:39:06,158 ERROR tuned.plugins.plugin_sysctl: sysctl option kernel.sched_min_granularity_ns will not be set, failed to read the original value.
2024-06-26 10:39:06,158 ERROR tuned.plugins.plugin_sysctl: Failed to read sysctl parameter 'kernel.sched_wakeup_granularity_ns', the parameter does not exist.
2024-06-26 10:39:06,158 ERROR tuned.plugins.plugin_sysctl: sysctl option kernel.sched_wakeup_granularity_ns will not be set, failed to read the original value.
2024-06-26 10:39:06,158 ERROR tuned.plugins.plugin_sysctl: Failed to read sysctl parameter 'kernel.sched_migration_cost_ns', the parameter does not exist.
2024-06-26 10:39:06,158 ERROR tuned.plugins.plugin_sysctl: sysctl option kernel.sched_migration_cost_ns will not be set, failed to read the original value.

I have found that the above files were re-located here during one of the past updates:
/sys/kernel/debug/sched/
And I guess sysctl can no longer see them.

System:

• Kernel: 5.15.0-113-generic x86_64 bits: 64 compiler: gcc v: 11.4.0 Desktop: Cinnamon 6.0.4.
• tk: GTK 3.24.33 wm: muffin vt: 7 dm: LightDM 1.30.0 Distro: Linux Mint 21.3 Virginia base: Ubuntu 22.04 jammy.
• Machine:
• Type: Desktop System: Gigabyte product: H370 WIFI v: N/A serial:
• Mobo: Gigabyte model: H370N WIFI-CF v: x.x serial:
• UEFI: American Megatrends v: F11 date: 09/17/2018
• CPU:
• Info: 6-core model: Intel Core i7-8700 bits: 64 type: MT MCP smt: enabled arch: Coffee Lake rev: A cache: L1: 384 KiB L2: 1.5 MiB L3: 12 MiB
• Speed (MHz): avg: 4429 high: 4499 min/max: 800/4600 cores: 1: 4327 2: 4350 3: 4357 4: 4494 5: 4494 6: 4490 7: 4399 8: 4363 9: 4466 10: 4476 11: 4499 12: 4433 bogomips: 76799
• Flags: avx avx2 ht lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx

tuned.log:

2024-06-26 10:39:06,115 WARNING tuned.plugins.plugin_cpu: unable to run x86_energy_perf_policy tool, ignoring CPU energy performance bias, is the tool installed?

2024-06-26 10:39:06,158 ERROR tuned.plugins.plugin_sysctl: Failed to read sysctl parameter 'kernel.sched_min_granularity_ns', the parameter does not exist.
2024-06-26 10:39:06,158 ERROR tuned.plugins.plugin_sysctl: sysctl option kernel.sched_min_granularity_ns will not be set, failed to read the original value.
2024-06-26 10:39:06,158 ERROR tuned.plugins.plugin_sysctl: Failed to read sysctl parameter 'kernel.sched_wakeup_granularity_ns', the parameter does not exist.
2024-06-26 10:39:06,158 ERROR tuned.plugins.plugin_sysctl: sysctl option kernel.sched_wakeup_granularity_ns will not be set, failed to read the original value.
2024-06-26 10:39:06,158 ERROR tuned.plugins.plugin_sysctl: Failed to read sysctl parameter 'kernel.sched_migration_cost_ns', the parameter does not exist.
2024-06-26 10:39:06,158 ERROR tuned.plugins.plugin_sysctl: sysctl option kernel.sched_migration_cost_ns will not be set, failed to read the original value.

2024-06-26 10:39:10,676 ERROR tuned.plugins.plugin_sysctl: Failed to read sysctl parameter 'kernel.sched_min_granularity_ns', the parameter does not exist.
2024-06-26 10:39:10,676 ERROR tuned.plugins.base: verify: failed: 'kernel.sched_min_granularity_ns' = 'None', expected '10000000'.
2024-06-26 10:39:10,676 ERROR tuned.plugins.plugin_sysctl: Failed to read sysctl parameter 'kernel.sched_wakeup_granularity_ns', the parameter does not exist.
2024-06-26 10:39:10,676 ERROR tuned.plugins.base: verify: failed: 'kernel.sched_wakeup_granularity_ns' = 'None', expected '15000000'
2024-06-26 10:39:10,677 INFO tuned.plugins.base: verify: passed: 'vm.dirty_ratio' = '40'
2024-06-26 10:39:10,677 INFO tuned.plugins.base: verify: passed: 'vm.dirty_background_ratio' = '5'
2024-06-26 10:39:10,677 INFO tuned.plugins.base: verify: passed: 'vm.swappiness' = '10'.
2024-06-26 10:39:10,677 ERROR tuned.plugins.plugin_sysctl: Failed to read sysctl parameter 'kernel.sched_migration_cost_ns', the parameter does not exist.
2024-06-26 10:39:10,677 ERROR tuned.plugins.base: verify: failed: 'kernel.sched_migration_cost_ns' = 'None', expected '5000000'.