[gem5-users] Sum of system.cpu**.num_insts doesn't equal to sim_insts

[zhengchl]

Hi,

Sum of system.cpu**.num_insts doesn't equal to sim_insts?
sim_insts 1056981309                       # Number of instructions 
simulated
system.cpu0.num_insts 108073118                       # Number of 
instructions executed
system.cpu1.num_insts 105227026                       # Number of 
instructions executed
system.cpu2.num_insts 111365104                       # Number of 
instructions executed
system.cpu3.num_insts 101689390                       # Number of 
instructions executed
system.cpu4.num_insts 107883306                       # Number of 
instructions executed
system.cpu5.num_insts 107863273                       # Number of 
instructions executed
system.cpu6.num_insts 107858566                       # Number of 
instructions executed
system.cpu7.num_insts 107883876                       # Number of 
instructions executed

Sum of all num_insts is 857843659, less than sim_insts, this is strange. 
So which one can be used for calculate IPC?

Thank you

--
Chuanlei Zheng

Department of Computer Science and Technology
Nanjing University

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