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dealing with mismatching socket/core topolgoies in VM settings
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Thanks a lot for this PR, I think the code to be changed is more in the qemu exporter itself : https://github.com/hubblo-org/scaphandre/blob/main/src/exporters/qemu.rs#L75 This code is too simple to handle multiple vcpu in the VM. It has to be changed. I'll try to make something up for the release 0.6. In the mean time if you want to give it a try do not hesitate ! |
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got it working on a 2 cores vm, I'll merge your work in this PR : #291 thanks ! |
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Hello, while trying to use scaphandre with the qemu I encountered the issue #133. Looking into it a bit more, the reason behind this stems from the way qemu (at least for my setup) handles multi-core/multi-thread CPUs. In essence, instead of allowing you to set core or thread count for the virtual CPU, you add sockets to the VM; see this stack overflow discussion.
So to fix this I just fall back to the first socket found by the sensor and add all encountered cores to it. Sorry if the code is ugly, I'm new to rust. Anyway, with this fix, u can use the VM mode even for VM's with more vCores.