Current benchmarks on c7i.large exhibit a high performance variability
that is likely due to virtualization.
This commit switches to a metal instance for c7i to counter this problem.
https://pq-code-package.github.io/mlkem-native/dev/bench/ suggests that
the issue does not appear for c6a, c6i, c7a, so those are not touched (and
indeed it would be non-trivial to do so because we'd exceed the vCPU quote
with more than one metal instance).
Current benchmarks on c7i.large exhibit a high performance variability that is likely due to virtualization.
This commit switches to a metal instance for c7i to counter this problem.
https://pq-code-package.github.io/mlkem-native/dev/bench/ suggests that the issue does not appear for c6a, c6i, c7a, so those are not touched (and indeed it would be non-trivial to do so because we'd exceed the vCPU quote with more than one metal instance).