topic Hi, Steve. in Analyzers

Profiler Drivers missing

biederman__steve — Thu, 23 Apr 2020 18:25:50 GMT

Brand new to vtune, on a Centos Linux machine. "uname -r" gives "3.10.0-327.el7.x86_64".

When I installed vtune, it said

The install program cannot detect the kernel source directory for OS kernel
version 3.10.0-327.el7.x86_64. If kernel sources are already installed to custom
directory, set up this parameter in Advanced Options -> Driver Build Options
dialog.
To install kernel headers, execute one of the following commands specific to
your operating system:
- CentOS / Red Hat Enterprise Linux
- On a system with the default kernel, install the kernel-devel package:
sudo yum install kernel-devel-3.10.0-327.el7.x86_64
- On a system with the PAE kernel, install the kernel-PAE package:
sudo yum install kernel-PAE-devel-3.10.0-327.el7.x86_64

When I try to run that final "yum" line, I get:

No package kernel-PAE-devel-3.10.0-327.el7.x86_64 available.

When I run either vtune-self-checker.sh or try to set up a Microarchitecture Exploration inside the vtune GUI,
they tell me "vtune: Error: This analysis type requires either an access to system-wide monitoring in the Linux perf subsystem or installation of the VTune Profiler drivers (see the "Sampling Drivers" help topic for further details). "

How do I install the VTune Profiler drivers?

Hey Steve,

ArunJ_Intel — Fri, 24 Apr 2020 09:12:00 GMT

Hey Steve,

The error message suggests to install perf or vtune drivers. So to resolve the issue you could try any one among the 2 below alternatives:

alternative 1: Install perf

You can install perf on centos with the below command

sudo yum install perf gawk

alternative 2:

You could build vtune drivers by using the below command:

cd {VTUNE_INSTALLATION_PATH}/sepdk/src/
./build-driver -ni  --kernel-version="3.10.0-327.el7.x86_64" --kernel-src-dir="/usr/src/kernels/3.10.0-327.el7.x86_64"

Also find below a more detailed documentation on building drivers in the below link

https://software.intel.com/en-us/vtune-help-building-and-installing-the-sampling-drivers-for-linux-targets

My /usr/src/kernels is empty.

biederman__steve — Fri, 24 Apr 2020 17:26:07 GMT

My /usr/src/kernels is empty. Is there something I can do or am I out of luck?

FYI, I do have a /lib/modules

biederman__steve — Fri, 24 Apr 2020 17:31:33 GMT

FYI, I do have a /lib/modules/3.10.0-327.el7.x86_64/source which is a symlink to the non-existent /usr/src/kernels/3.10.0-327.el7.x86_64.

Hi, Steve.

Kirill_U_Intel — Mon, 27 Apr 2020 07:58:33 GMT

Hi, Steve.

Did you try 'sudo yum install kernel-devel-3.10.0-327.el7.x86_64'?

if the package is not avalable you could try to download and install it directly.

for example, 'sudo rpm -ivh kernel-devel-3.10.0-327.el7.x86_64.rpm' from

https://buildlogs.centos.org/c7.1511.00/kernel/20151119220809/3.10.0-327.el7.x86_64/ ;

Kirill

Hi Steve,

ArunJ_Intel — Thu, 30 Apr 2020 09:54:27 GMT

Hi Steve,

Have you tried out the steps provided ?. Do the resolve your issue.

Arun

That resolved my issue,

biederman__steve — Thu, 30 Apr 2020 17:39:15 GMT

That resolved my issue, thanks.

Thanks for the confirmation.

ArunJ_Intel — Mon, 04 May 2020 04:31:00 GMT

Thanks for the confirmation we are closing this case. Please feel free to raise a new thread for further issues.