Is there any method to run perf under WSL?

WARNING: perf not found for kernel 4.19.84-microsoft

Because WSL2 uses custom Linux kernel. Its source code can be found here microsoft/WSL2-Linux-Kernel. We have to compile perf tools from it.

Procedure

  • Install required build packages. If you are using Ubuntu in WSL2 this is the required command:
sudo apt install build-essential flex bison libssl-dev libelf-dev
  • Clone the WSL2 Linux kernel repository:
git clone --depth=1 https://github.com/microsoft/WSL2-Linux-Kernel.git
  • Go to perf folder and compile it:
cd WSL2-Linux-Kernel/tools/perf
make

perf executable file will be in that folder.


You can install linux-tools-generic.

apt install linux-tools-generic

Then run perf using the install path /usr/lib/linux-tools/<linux-version>-generic/perf.

Some tools, like flamegraph, will use environment variable PERF as the perf path.

PERF=/usr/lib/linux-tools/<linux-version>-generic/perf flamegraph -- my_program

Tags:

Linux

Windows Subsystem For Linux

Perf

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