On 20.02.2013 16:55, Umesh Bhaskar wrote:
> Hi all, > > I am trying to understand the various stats available in the stats.txt file for the Hello World binary under O3 configuration. > Specifically, I am looking at the folder <gem5_path>/tests/quick/se/00.hello/ref/arm/linux/o3-timing. > > Here the total committed instruction count is mentioned as > > system.cpu.commit.committedInsts 4591 # Number of instructions committed > system.cpu.commit.committedOps 5729 # Number of ops (including micro ops) committed > > with the other stats listed below. > > system.cpu.commit.swp_count 0 # Number of s/w prefetches committed > system.cpu.commit.refs 2138 # Number of memory references committed > system.cpu.commit.loads 1200 # Number of loads committed > system.cpu.commit.membars 12 # Number of memory barriers committed > system.cpu.commit.branches 1007 # Number of branches committed > system.cpu.commit.fp_insts 16 # Number of committed floating point instructions. > system.cpu.commit.int_insts 4976 # Number of committed integer instructions. > system.cpu.commit.function_calls 82 # Number of function calls committed. > system.cpu.commit.bw_lim_events 119 # number cycles where commit BW limit reached > > Now, to calculate the final instruction count, I would calculate the following sum : int_insts + fp_insts + branches + refs = 4976+16+1007+2138 = 8137, which does not match either committedInsts or committedOps. > Am I missing something here ? > > Thanks, > Umesh > > _______________________________________________ > gem5-users mailing list > gem5-users@gem5.org > http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users [1] The flags aren't mutually exclusive. int_insts is any instruction that accesses an integer register and fp_insts is any instruction that accesses an fp register. Most load instructions are going to be integer operations. Ali Links: ------ [1] http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users
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