Verilator testbench: time is always 0 in DASM and perf results about snitch_cluster HOT 5 CLOSED

Thank you for opening the issue.

This is a known problem with Verilator simulation as it does not log simulation timestamps.
The Python scripts could be extended to use the cycle count instead of the absolute timestamp as a workaround.

If you could provide such a feature, I would be willing to merge it.

from snitch_cluster.

Do you know if there are any known simulators that are able to provide wall time statistics? I saw that Banshee was another tool mentioned but that seemed to lean towards instruction accuracy instead of cycle accuracy. On IIS there seemed to be other tools like Questa too.

from snitch_cluster.

Yes, indeed if you have a Questa or VCS license you can use those to get the wall time statistics.

from snitch_cluster.

How can one get this license? Is it offered within the Docker installation?

from snitch_cluster.

No, these are commercial tools we cannot provide.

from snitch_cluster.