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Hello! If you have anything to say to me, feel free to open an issue, and I will reply. For gem5 issues, prefer asking on Stack Overflow or the mailing list: https://www.gem5.org/mailing_lists/ or: https://github.com/cirosantilli2/gem5-issues
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DRAMSim2 on GEM5 is only giving refresh prints #3

Open prakhargurawa opened 6 years ago

prakhargurawa commented 6 years ago

I have successfully setup GEM5 in fs mode and with DRAMSim2 memory type. The command I am using is: build/ARM/gem5.opt configs/example/fs.py --disk-image=/home/prakhar/full_system_2/disks/linux-arm-ael.img --mem-type=DRAMSim2

Everything is working fine. Now, I have added some comments in DRAMSim2 code to analyze the flow of code and to study command sequence. Then, I have again compile the ARM system to save the changes.

scons build/ARM/gem5.opt

Now, when I am running gem5 arm in fs mode again, it is just showing the comments of refresh commands. Like this:

6 0---------- refresh... 6 0---------- refresh... 6 0---------- refresh... 6 0---------- refresh... 6 0---------- refresh... 6 0---------- refresh... 6 0---------- refresh... 6 0---------- refresh... 6 0---------- Why can't I see other commands like ACT,READ,WRITE etc.There should be some read,write,act even when the OS is booting up? I have added comments in /gem5/ext/dramsim2/DRAMSim2/MemoryController.cpp

Steps to add DRAMSim2 in gem5:

  1. Go to ext/dramsim2 in gem5 directory.
  2. Clone DRAMSim2: git clone git://github.com/dramninjasUMD/DRAMSim2.git
  3. Re-build the system by scons.
  4. Run again in fs mode adding --mem-type=DRAMSim2 at last.

In the ext/dramsim2/DRAMSim2 there is a file MemoryController.cpp.In that file there is a function update().There is a switch-case of different commands like READ,WRITE,ACTIVATE.In respective cases for each command i have added cout like cout<<"read...." in read case, cout<<"refresh..." for refresh case. Again rebuild the system and run with fs mode and --mem-type=DRAMSim2. Now i m just getting comments of "refresh...." and not others, but there should be other comments also like "read..." and all as there is some read,write,activate while booting of OS.

cirosantilli2 commented 4 years ago

Sorry, I just found out I wasn't subscribed to this repo, what a fail.

I don't know much about the memory system, better ask on mailing list or Stack Overflow.