Well, you have to look at the complexity of the instructions in the binary in terms of how they are simulated. If bzip2 uses some specific instructions in ISA X which are then simulated in an inefficient way on host machine Y, you could have a big discrepancy in how long each tick takes to execute.
So I'd say this is perfectly possible. On Fri, Jan 13, 2012 at 9:03 AM, Mahmood Naderan <[email protected]>wrote: > with the above config, ipc of bzip2 is 1.53 and lbm is 0.5 > > On 1/13/12, Mehmet Burak Aykenar <[email protected]> wrote: > > I am not quite sure but the "IPC" of 'lbm' might be higher than 'bzip2' > .. > > In my tests, benchmarks having higher "IPC" usually finish earlier.. > > > > Regards, > > Burak > > > > 2012/1/13 Mahmood Naderan <[email protected]> > > > >> hi > >> I ran two benchmarks at the same time with similar number of fast > >> forwards and maxticks. But the lbm (with reference input which is big) > >> reaches the end much much sooner than bzip2 (with test input). > >> > >> > >> configs/example/cmp.py --prog-interval=1000000 -F 1000000 --maxtick > >> 100000000000 -d --caches --l2cache -b lbm > >> > >> configs/example/cmp.py --prog-interval=1000000 -F 1000000 --maxtick > >> 100000000000 -d --caches --l2cache -b bzip2_dryer > >> > >> Is that normal? > >> -- > >> // Naderan *Mahmood; > >> _______________________________________________ > >> gem5-users mailing list > >> [email protected] > >> http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users > >> > >> > >> !DSPAM:6374,4f101b927441533729461! > >> > >> > >> > > > > > > -- > > *Mehmet Burak AYKENAR > > Graduate Student of Computer Engineering > > Research Assistant > > **TOBB ETU Z-10 > > Microprocessors Laboratory* > > * > > mbaykenar.etu.edu.tr > > [email protected]* > > > > > -- > -- > // Naderan *Mahmood; > _______________________________________________ > gem5-users mailing list > [email protected] > http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users >
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