Cannot see Cache level data movement in Gem5 simulations

Question

I am using the following CLI:

M5_PATH=/home/febin/Storage/Gem5/gem5ist/m5/system/ Gem5/gem5/build/X86/gem5.opt --debug-flags=Cache,Exec,DRAM,TLB Gem5/gem5/configs/example/fs.py --kernel x86_64-vmlinux-2.6.22.9 --num-cpus=64 --num-dirs=64 --caches --elastic-trace-en --num-l2caches=16 --ruby --network=garnet2.0 --topology=Mesh_XY --mesh-rows=8 --command-line="paper3/Blackscholes/blackscholes.out 1 paper3/Blackscholes/in_16.txt paper3/Blackscholes/output.txt" >> paper3/Gem5_fs

I am able to see Exec, DRAM and TLB traces; but I cannot see any data from Cache. Same for SE simulations why is this ?

Answer 1

As mentioned by Daniel, you have to use --debug-flags RubyCache for ruby.

The flag is different because Ruby models the caches itself separately from the classic system.