[Bug 2089411] Re: python perf module missing in realtime kernel

The module is there but the wrapper is broken :-(

Can you try this hack:
$ sudo sed -i 's|/linux-tools-|/linux-realtime-tools-|' /usr/lib/python3/dist-packages/perf/__init__.py

And check if it works now:
$ python3 -c 'import perf; [print(c) for c in perf.cpu_map()]'
0
1
2
3

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https://bugs.launchpad.net/bugs/2089411

Title:
python perf module missing in realtime kernel

Status in linux package in Ubuntu:
New

Bug description:
Issue is related to Bug #2051560
In using tuned profile realtime-virtual-host under the realtime kernel, the operating system would lose network connection. Further viewing of the tuned logs pointed to the following error:

ERROR tuned.units.manager: WARNING: python perf module not found
for kernel 6.8.1-1011-realtime

Researching online Bug #2051560 was discovered. However, it looks as
if the realtime kernel was not listed as fixed to include the perf
Python module that affects tuned.

Server info:

uname -a:

Linux 6.8.1-1011-realtime #11-Ubuntu SMP PREEMPT_RT Tue Oct 8 17:19:16 UTC 2024 x86_64 x86_64 x86_64 GNU/Linux
-----------------------

lsb_release -crid:

No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 24.04.1 LTS
Release: 24.04
Codename: noble

-----------------------

apt policy linux-image-6.8.1-1011-realtime:

linux-image-6.8.1-1011-realtime:
Installed: 6.8.1-1011.11
Candidate: 6.8.1-1011.11
Version table:
*** 6.8.1-1011.11 500
500 https://esm.ubuntu.com/realtime/ubuntu noble/main amd64 Packages
100 /var/lib/dpkg/status

-----------------------

Realtime kernel was installed via Ubuntu Pro subscription.

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