Analyze your benchmark by running for fewer number of loops(say 2 loops, first loop all miss and second loop all hits) and look at the gems statistics. This might give you a lead.
Thanks, Prathap On Sep 8, 2017 4:27 PM, "Jackie Chan" <chanjackie...@gmail.com> wrote: > I'm actually using SE mode, so the only process running is this small > program. > > On Fri, Sep 8, 2017 at 7:10 PM, Prathap Kolakkampadath < > kvprat...@gmail.com> wrote: > >> Could you provide more details about your system configuration? How are >> you making sure that no other process or kernel accessing the memory. >> >> Thanks, >> Prathap >> >> On Sep 8, 2017 7:54 AM, "Jackie Chan" <chanjackie...@gmail.com> wrote: >> >> Hey guys! >> >> I'm running a small program on gem5 to test data cache. The cache size is >> 32kB (assoc: 8 and block size: 64 bytes). The program loads independent >> data values from an array with an offset of 64 bytes (the cache block >> size), such that the total size of array is 32kB, and the accesses keep on >> happening in a loop. Theoretically the number of data cache misses should >> be very low in this case. However I am noticing 72 million data cache >> misses for a total of 520 million accesses. I reduced the size of the >> array to 30kB rather than 32kB ( using the same size of data cache) and the >> number of misses reduced to less than a thousand. I am not sure what I >> might be missing here? Any thoughts? >> >> _______________________________________________ >> gem5-users mailing list >> gem5-users@gem5.org >> http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users >> >> >> >> _______________________________________________ >> gem5-users mailing list >> gem5-users@gem5.org >> http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users >> > > > _______________________________________________ > gem5-users mailing list > gem5-users@gem5.org > http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users >
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