"Total consumed energy by NAND (uJ)" number is 0 in stats.txt

[minhson]

Running Environment (please complete the following information):

• Host OS and Kernel version: from https://drive.google.com/drive/folders/14b-kJmGXOhltX9Aqr8XV9i48KkZk4Lzs?usp=sharing
• Compiler version used to build SimpleSSD-FullSystem: GCC 11.2.0
• SimpleSSD-FullSystem version: 2.0.10
• SimpleSSD version: 2.0.13

Execution information

• Execution command line of gem5:
  ./build/X86/gem5.opt --debug-flag=M5Print --debug-file=debug.txt
  ./configs/example/fs.py --kernel=x86_64-vmlinux-4.9.92
  --num-cpu=1 --cpu-clock=4.4GHz --caches --l2cache --cpu-type=TimingSimpleCPU
  --mem-size=4GB --mem-type=DDR4_2400_8x8
  --ssd-interface=nvme --ssd-config=./src/dev/storage/simplessd/config/sample.cfg
  --disk-image=x86root.img
  #--root-device=/dev/sdb1
• Execution command line in guest OS (inside of simulation):
  #!/bin/bash
  m5 resetstats
  ./fio --direct=1 --ioengine=libaio --iodepth=1 --bs=4k
  --rw=read --numjobs=1 --name=test --write_lat_log=test
  --write_iops_log=test --write_bw_log=test
  --log_avg_msec=10 --time_based --runtime=5s
  --randseed=13425 --filename=/dev/nvme0n1 --size=32m
  m5 dumpstats
  m5 writefile test_clat.1.log
  m5 writefile test_slat.1.log
  m5 writefile test_lat.1.log
  m5 writefile test_iops.1.log
  m5 writefile test_bw.1.log
  m5 exit

Explain what you want to ask here:

Hello, i run the simplessd-fullsystem with the configurations and commands as mentioned above. However, the "Total consumed energy by NAND (uJ)" from stats.txt is 0. The details of stats.txt file is in:
https://drive.google.com/drive/folders/12gNa-XEoD1gxuDncmTPnZOvFlI9KPH5q?usp=sharing

Thank you!