Public bug reported:
After https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2051560, the
linux-tools-<version> package started shipping the perf module, at least
for the generic kernel:
$ dpkg -L linux-tools-6.8.0-38|grep perf\.cpython
/usr/lib/python3/dist-packages/linux-tools-6.8.0-38/perf.cpython-312-x86_64-linux-gnu.so
For the AWS kernel, the linux-tools-6.8.0-1009-aws package does not ship the
perf module:
$ dpkg -L linux-tools-$(uname -r)|grep perf
/usr/lib/linux-tools/6.8.0-1009-aws/libperf-jvmti.so
/usr/lib/linux-tools/6.8.0-1009-aws/perf
/usr/lib/linux-tools/6.8.0-1009-aws/x86_energy_perf_policy
There is no linux-tools-6.8.0-1009 package without the "-aws" suffix (which
would then match the output of uname -r). The layout for cloud kernels seems a
bit different.
$ uname -r
6.8.0-1009-aws
$ python3 -c "import perf"
Traceback (most recent call last):
File "<string>", line 1, in <module>
File "/usr/lib/python3/dist-packages/perf/__init__.py", line 24, in <module>
raise KernelNotFoundError()
perf.KernelNotFoundError: WARNING: python perf module not found for kernel
6.8.0-1009-aws
You may need to install the following packages for this specific kernel:
linux-tools-6.8.0-1009-aws-generic
You may also want to install of the following package to keep up to date:
linux-tools-generic
The badly named linux-tools package in the suggestion above was filed as
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2073117
I installed apt-file, and searched the archive for "perf.cpython", and these
were the only matches:
linux-ibm-tools-6.8.0-1006:
/usr/lib/python3/dist-packages/linux-ibm-tools-6.8.0-1006/perf.cpython-312-x86_64-linux-gnu.so
linux-ibm-tools-6.8.0-1007:
/usr/lib/python3/dist-packages/linux-ibm-tools-6.8.0-1007/perf.cpython-312-x86_64-linux-gnu.so
linux-ibm-tools-6.8.0-1008:
/usr/lib/python3/dist-packages/linux-ibm-tools-6.8.0-1008/perf.cpython-312-x86_64-linux-gnu.so
linux-nvidia-lowlatency-tools-6.8.0-1009:
/usr/lib/python3/dist-packages/linux-nvidia-lowlatency-tools-6.8.0-1009/perf.cpython-312-x86_64-linux-gnu.so
linux-nvidia-tools-6.8.0-1007:
/usr/lib/python3/dist-packages/linux-nvidia-tools-6.8.0-1007/perf.cpython-312-x86_64-linux-gnu.so
linux-nvidia-tools-6.8.0-1008:
/usr/lib/python3/dist-packages/linux-nvidia-tools-6.8.0-1008/perf.cpython-312-x86_64-linux-gnu.so
linux-nvidia-tools-6.8.0-1009:
/usr/lib/python3/dist-packages/linux-nvidia-tools-6.8.0-1009/perf.cpython-312-x86_64-linux-gnu.so
linux-tools-6.8.0-35:
/usr/lib/python3/dist-packages/linux-tools-6.8.0-35/perf.cpython-312-x86_64-linux-gnu.so
linux-tools-6.8.0-36:
/usr/lib/python3/dist-packages/linux-tools-6.8.0-36/perf.cpython-312-x86_64-linux-gnu.so
linux-tools-6.8.0-38:
/usr/lib/python3/dist-packages/linux-tools-6.8.0-38/perf.cpython-312-x86_64-linux-gnu.so
So it looks like not all kernel flavors have the perf python module.
This was checked on noble.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/2073121
Title:
Not all linux-tools-<version> package flavors have the perf python
module
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