What riscv tracing tools do you recommend and how are they accurate for measurements?

[Nazerke Turtayeva <nturtayeva@ucsb.edu>]

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Hi everyone,

Recently, I was planning to measure the performance of my application of
interest for potential RISC-V hardware. Hence, I started my simulations
from Spike to analyze dynamic instruction traces and instruction count,
nevertheless given it does not support multithreading, I started using Qemu
to test my app too. However, it seems like I cannot rely on timing results
of Qemu for comparing different implementations. Accordingly, given I am
brand new to the Qemu ecosystem, I was wondering whether I am missing some
important mainstream instrumentation and tracing tools that I can use for
performance evaluation of my target app in other ways. Particularly, I want
to understand implications of adding custom ISA instructions to the
performance of my application.

In this regard, do you have any recommendations on where I can look?

Thanks,
Best wishes

-- 
Nazerke Turtayeva
Graduate Student
Electrical and Computer Engineering, Computer Science
Email: nturtayeva@ucsb.edu
*UC Santa Barbara*

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