General questions about benchmarking

[rogpld]

I'm interested in doing some custom benchmarks on OpenPiton + Ariane.

Is there a way to get the l1.5 and l2 miss rate from the simulations? Running

sims -sys=manycore -x_tiles=1 -y_tiles=1 -vlt_run -ariane dhrystone.riscv -precompiled -rtl_timeout=10000000 -post_process_cmd="perf > perf.log"

gives me an empty perf.log file. I see no performance results besides the cycle count printed from within the dhrystone elf (which reflects the perf. counters results and has no information about l1.5 and l2).

Thank you.

[Jbalkind]

Just seeing this now (broken email notification settings) and I assume you probably resolved this already. I'll leave an answer for posterity:

Page 40 of the microarchitecture specification explains the address formatting to get L2 accesses and misses: http://openpiton.org/docs/micro_arch.pdf