Profiling Instructions in Spike

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riscv21

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Jan 31, 2024, 11:59:16 PM1/31/24

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Hi everyone,

I'm running an executable file on RISCV Linux using the Spike. I'm trying to figure out how many instructions are in that specific executable (excluding Linux itself, just the executable). Unfortunately, I haven't found a straightforward solution yet. If anyone has experience with profiling instructions in Spike, I'd appreciate any advice or recommendations!

Thank you!

Swapnil Agrawal

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May 10, 2024, 4:30:32 AM5/10/24

to RISC-V SW Dev, riscv21

You can use riscv-unknown-elf-objdump to generate the disassembly for the executable. It will have the instructions present in the executable. No need to run the executable in spike to know the instructions present in it.

David Castells Rufas

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Jul 14, 2024, 5:10:32 AM7/14/24

to RISC-V SW Dev, riscv21

Do you mean 1) number of instructions in the executable or 2) executed instructions ?
For the first case , the agarwal answer applies.

For the second case you should be able to do it with CSR counters (INSTRET, etc...)

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