fails to run on linux with kernel 5.4

[0x8f701]

WARNING: perf not found for kernel 5.4.23-050423

You may need to install the following packages for this specific kernel: linux-tools-5.4.23-050423-lowlatency linux-cloud-tools-5.4.23-050423-lowlatency

You may also want to install one of the following packages to keep up to date: linux-tools-lowlatency linux-cloud-tools-lowlatency failed to sample program

[petr-tik]

I am just a lurker without any affiliation to the project, but have experienced this problem before.

linux perf tools aren't present in package managers for all versions of the kernel, so you might have to install them from source.

In your case, you should try installing the pakcages suggested and try again. If that helps - feel free to close the ticket. I had a kernel version that didn't have linux-tools in the package manager and compiling from source made this problem go away.

[yueshangzuo]

Hi, maybe this blog could help.

[RandomInsano]

I've had the same error. Building from source got my perf

Ubuntu 20.04 Linux mymachine 5.4.0-65-generic #73-Ubuntu SMP Mon Jan 18 17:25:17 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux

[Supermath101]

Try looking in the /bin directory for a different program with perf in it's name. Then, set the PERF environment variable to point to the path of that executable. You may want to confirm that printing the --help message actually works beforehand though.

This kind of worked for me, but now I have a different error that's very uninformative. Now my error is:

failed to sample program