I'm still a little concerned about instruction counts across CPU models. For instance, looking in the gzip tests for "sim_insts": tests/long/00.gzip/ref/alpha/tru64/simple-atomic/stats.txt:8:sim_insts 601856964 # Number of instructions simulated tests/long/00.gzip/ref/alpha/tru64/simple-timing/stats.txt:8:sim_insts 601856964 # Number of instructions simulated tests/long/00.gzip/ref/alpha/tru64/o3-timing/stats.txt:8:sim_insts 565552443 # Number of instructions simulated
How can that be? There are only 17 syscalls in the program. Even if faulting instructiosn get double counted, that's a large discrepancy, no? It seems like we had this conversation a while back, but I cant remember the conclusion exactly. I thought it had to do with how counting for SS compatibility confused things but I'm open to other reasoning if someone has that... On Wed, Apr 22, 2009 at 4:53 PM, nathan binkert <[email protected]> wrote: > Hi Everyone, > > I wanted to let everyone know that the format of the statistics file > has changed with a recent commit that I made. Up until today, M5 had > an option to print statistics in a simplescalar compatible output > format. The default was usually to use this compatibility mode, but > due to an initialization bug, sometimes this wouldn't happen. There > were even examples of committed tests where some of the tests were in > one mode and some were in another. The combination of this bug, the > fact that the compatibility mode isn't that important, and the fact > that it just made the code more complicated, I've removed the > compatibility mode. All statistics outputs should be consistent now. > > As a side benefit, I believe that people will find that the new text > format is much easier to parse now. One notable change was that > "<err: div-0>" and "no value" are both now "no_value". This makes the > new format easily parsed using white space to separate into three > colums: stat name, value, and an option comment/description. > > Nate > _______________________________________________ > m5-dev mailing list > [email protected] > http://m5sim.org/mailman/listinfo/m5-dev > -- ---------- Korey L Sewell Graduate Student - PhD Candidate Computer Science & Engineering University of Michigan
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