It's in the bin:linux-perf package now, but needs a fix.
Quick hack (or maybe the real fix):
--- /usr/lib/python3/dist-packages/perf/__init__.py 2025-03-19
20:34:33.601056393 +0000
+++ __init__.py 2025-03-19 20:34:27.999982517 +0000
@@ -18,7 +18,7 @@
# Load the actual python-perf module for the running kernel
_kernel_version = os.uname().release
-_perf_dir = f"/usr/lib/linux-tools/{_kernel_version}/lib"
+_perf_dir = f"/usr/lib/"
if not os.path.exists(_perf_dir):
raise KernelNotFoundError()
_perf_lib = glob(os.path.join(_perf_dir, "perf.*.so"))[-1]
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https://bugs.launchpad.net/bugs/2103653
Title:
python perf module missing in plucky's kernel
Status in linux package in Ubuntu:
New
Bug description:
Regression from
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2051560, but I'm
not sure exactly when it happened.
root@p-perf:~# uname -a
Linux p-perf 6.14.0-10-generic #10-Ubuntu SMP PREEMPT_DYNAMIC Wed Mar 12
16:07:00 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux
root@p-perf:~# python3 -c 'import perf; [print(c) for c in perf.cpu_map()]'
Traceback (most recent call last):
File "<string>", line 1, in <module>
import perf; [print(c) for c in perf.cpu_map()]
^^^^^^^^^^^
File "/usr/lib/python3/dist-packages/perf/__init__.py", line 23, in <module>
raise KernelNotFoundError()
perf.KernelNotFoundError:
WARNING: python perf module not found for kernel 6.14.0-10-generic
You may need to install the following package for this specific kernel:
linux-tools-6.14.0-10-generic
You may also want to install the following package to keep up to date:
linux-tools-generic
root@p-perf:~# dpkg -l linux-tools-6.14.0-10-generic
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name Version Architecture Description
+++-=============================-============-============-=========================================================
ii linux-tools-6.14.0-10-generic 6.14.0-10.10 amd64 Linux kernel version
specific tools for version 6.14.0-10
# ls -la /usr/lib/linux-tools/6.14.0-10-generic/
total 3728
drwxr-xr-x 2 root root 4096 Mar 18 13:54 .
drwxr-xr-x 77 root root 4096 Mar 19 19:58 ..
-rwxr-xr-x 1 root root 891336 Mar 12 14:20 acpidbg
-rwxr-xr-x 1 root root 399432 Mar 12 14:20 cpupower
-rwxr-xr-x 1 root root 1759112 Mar 12 14:20 rtla
-rwxr-xr-x 1 root root 198744 Mar 12 14:20 turbostat
-rwxr-xr-x 1 root root 251720 Mar 12 14:20 usbip
-rwxr-xr-x 1 root root 247536 Mar 12 14:20 usbipd
-rwxr-xr-x 1 root root 47816 Mar 12 14:20 x86_energy_perf_policy
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