I am using gem5 for generation of memory traces. While going through gem5
videos I found a method to generate traces using commMonitor. I have
modified the code as follows:
system.comm_monitor=CommMonitor()
system.comm_monitor.cpu_side_port=system.membus.mem_side_ports
system.comm_monitor.trace=MemTraceProbe(trace_file=f"mem_trace",trace_compress=True)
#system.system_port = system.membus.slave
system.mem_ctrl=MemCtrl()
system.mem_ctrl.dram = DDR3_1600_8x8()
system.mem_ctrl.dram.range = system.mem_ranges[0]
#system.mem_ctrl.port = #system.membus.mem_side_ports
system.mem_ctrl.port = system.comm_monitor.mem_side_port
system.system_port = system.membus.cpu_side_ports
I am running SE mode using arm ISA. I have got the traces as well:
7,r,980,4,256,0
7,r,984,4,256,77000
7,r,988,4,256,126000
8,r,474576,4,10,175000
7,r,992,4,256,238000
7,r,996,4,256,287000
8,w,474576,4,10,336000
7,r,1000,4,256,357000
8,w,474572,4,10,406000
7,r,1004,4,256,427000
8,r,1028,4,10,476000
7,r,1008,4,256,525000
8,w,474568,4,10,574000
Now my doubt is what does port number 7,8 mean. should I consider the
entire trace as a memory trace? I want only traces of the main memory.




Thanks and Regards,
Sadhana,
Research Scholar-NITK,
Dept. of Computer Science and Engineering
.
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