Scaphandre Windows Installation

[joegharbi]

Hello everyone,
I would be grateful to all of you if you could help me with the issue I am facing.
I have been trying to compile Scaphandre using Windows 11 for weeks now. I have tried all possible solutions.
Let me tell you my configuration, what I have done so far, and the issue I am facing.

• I have installed windows-rapl-driver and running driverquery /v | grep -i scaph result in this:

• I have installed two toolchains versions of rust the MSVC and GNU, I have solved all issues I was facing regarding the Openssl-dev... but ending up with the same issue libc::pid_t .. mainly related to libc and 2 errors for os::unix.
• it really doesn't matter what configuration I use ( GNU using msys2 or MSVC using Microsoft build tools and vcpkg) results always in this Some errors have detailed explanations: E0412, E0425, E0432, E0433, E0599. For more information about an error, try `rustc --explain E0412`. error: could not compile `procfs` due to 24 previous errors warning: build failed, waiting for other jobs to finish... .
• I did always make sure to clean my system while switching from GNU to MSVC.
• As far as I understood the libc is used with Unix-like environments. Is there a way to overcome this issue?
• My purpose for using the Scaphandre tool is to be able to measure Erlang functions using Windows.

I am open to trying all solutions and propositions.
Thank you all

[tormath1]

Hello, did you have a look to the dev branch which holds steps to compile on Windows?

scaphandre/.github/workflows/build-and-test.yml

Lines 146 to 162 in c1e860d

	test_windows_x86_64:
	name: Test on Windows x86_64 (Virtual machine worker)
	runs-on: "windows-2019"
	needs: fmt_and_clippy_windows
	steps:
	- name: Checkout
	uses: actions/checkout@v2
	- name: Install Rustup
	uses: crazy-max/ghaction-chocolatey@v2
	with:
	args: install rustup.install --ignore-checksums
	- name: Install Rust toolchain
	run: |
	rustup toolchain install stable-x86_64-pc-windows-msvc
	- name: Build (debug mode)
	run: |
	cargo build --no-default-features --features "prometheus json riemann"

I think it can help to reproduce these steps.

[joegharbi]

Thank you so much.

• Reproducing these steps helped with building scaphandre locally.
• However, I am not able to use it since the windows-rapl-driver seems to not be started yet.
  
• As I mentioned earlier it seems that the driver is there but won't be able to start it with net start ScaphandreDr
• I will try to investigate more about the driver issue but it would be great if you can help me if you already have a solution for that.

Thank you so much.

[tormath1]

@joegharbi happy that you've successfully built Scaphandre locally. For the second issue, I quickly checked - it seems to come from this code:
https://github.com/hubblo-org/windows-rapl-driver/blob/ebe845447fe42e0bbcc65f4c4a6434629cce9b70/userland/Agent/RAPLAgent.cpp#L49-L56

Three things:

• Did you enable test mode: https://github.com/hubblo-org/windows-rapl-driver#enable-test-mode ?
• Driver is only tested on Windows 10/Windows Server 2016 and Windows Server 2019 for now (but I would not expect big changes with Windows 11)
• Could you try to run scaphandre as administrator?

[joegharbi]

@tormath1 Thank you so much for the quick reply.
Answering to the three things: Yes I am in test mode with windows 11 and using Administrator cmd.

I did some investigations I have these findings if you can confirm which way to proceed:

• I did the build with MinGW. Do you think reinstalling it using CPUID could help? Since when I first tried to install it with MinGW I got a header error wdmguid.h: No such file or directory. I solved it adding -I + path-to-wdmguid.h.

• When I try to look for the driver I do have this
  which is not in the usual system32/drivers folder ( It might be not the actual issue) and by default rebooting after the installation should start the service automatically which was not my case.

• Even after reinstalling it in the system32/drivers folder I still can't start it (I even disabled Windows signature enforcement and restarted my computer).
  

• I have strong doubts about which ScaphandreDrv.sys file to have with DriverLoader.exe since there are many in the repository, So I might be using the wrong one?

Thank you so much for your help

[joegharbi]

I was able to run the driver using windows 11.

• In test mode, I used windows-rapl-driver/kernelland/ScaphandreDrv/x64/Release/ScaphandreDrv/ScaphandreDrv.sys to build the DriverLoader.cpp .

This solved the issue.
I hope this can help future users run scaphandre under windows.

[demeringo]

Nice to see it working 👍
Thank you @joegharbi for the feedback and documenting the issue.

[joegharbi]

Thank you so much for your help.

[bpetit]

Hi @joegharbi

Happy you could make it. Thanks for sharing this walkthrough, it will help us improve and simplify the procedure.

cc @vico63 this thread shows us what to improve :)

[Vic063]

I'll look into that 🙂
Thank you for your feedback.