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Why does the benchmark suite need so much RAM ?

I would expect benchmarks to match typical usage, if PyPy can't run in a couple of GB then choose a better language.

Compiling pypy is memory intensive, I don't believe it can be done in 2GB which is where most of the really affordable ARM devices seem to cap out.

You can build OpenJDK with the Hotspot JIT on a 2GB ARM64 system.

But why do you have to compile PyPy on the same machine you’re testing it on?

Well cross-compiling (aka "cross translation) is made complicated because PyPy doesn't use a normal toolchain, but that's not the problem here. The PyPy benchmark suite itself takes that much memory to run.

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