Introduction to RISC-V in gem5

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" summary

Hands-on use of gem5 Standard Library to build a RISC-V board inside a Docker prebuilt environment, run GMEM benchmark with RVV, and collect stats, traces and config.ini outputs. Experiments vary RVV VLEN 128→256 and memory models (DDR4 vs HBM2 mentioned) and show doubling VLEN yields almost 2× runtime speed and ~50% instruction reduction for GEMM here. Workflow uses parse scripts, a Konata pipeline trace viewer, and region-of-interest fast‑forwarding to keep multi-hour simulations feasible.

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" chapters (12)

1. 0:00Introduction to RISC-V in gem5
2. 2:15What is gem5?
3. 8:20Why use gem5?
4. 14:24gem5 software architecture
5. 17:12System instantiation with gem5
6. 21:48Running simulations in gem5
7. 26:06Analyzing simulation results
8. 28:35Hands-on demo setup
9. 34:21Case study: Vector width exploration
10. 46:18Reviewing simulation results
11. 50:40Pipeline visualization with Konata
12. 55:21Wrap-up and Q&A