Register-based VMs have a higher performance than stack-based VMs

Re:Register-based VMs have a higher performance than stack-b... by AntonErtl on Tuesday December 13, 2016 @12:23PM (#13168539)

However, if you leave register allocation to the source->VM compiler and don't do it in the VM->machine compiler (JIT), you cannot perform machine-specific register allocation (8 registers on IA-32, 16 on AMD64 and ARM, 32 on Aarch64). So register-based VMs typically work with large register sets, and JITs allocate them to the smaller register sets of real machines.

I have not read the present paper yet, but earlier papers I have read were about reducing interpretation overhead by performing fewer VM instructions (if VM instruction dispatch is expensive; dynamic superinstructions make it cheap, but not everyone implements them).

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Re:Register-based VMs have a higher performance than stack-b... by frjalex on Tuesday December 13, 2016 @10:51PM (#13173672)

Note that the JIT mechanism mentioned in the paper meant basically JIT from a program code to the bytecode executed in the VM, and directly executing it (very much like PHP), not necessarily directly to machine assembly.

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Re:Register-based VMs have a higher performance than stack-b... by frjalex on Tuesday December 13, 2016 @10:41PM (#13173618)

Interesting.... the paper referenced you if you're the correct Anton Ertl :)

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