Hi, I asked before about obtaining cache misses ( http://www.mail-archive.com/[email protected]/msg03331.html) and i was advised to use performance measurement tools for real system to see cache misses.
So have you tried this way ? Thanks Best Regards Wael Amr On Thu, May 3, 2012 at 5:30 PM, Hamid Reza Khaleghzadeh < [email protected]> wrote: > Thanks for your answer but could you tell me how L2 cache miss count can > be calculated by these information and histograms? > I think MOESI_CMP_token, the coherency protocol which I am using, must be > modified. Is that true? > > > On Thu, May 3, 2012 at 6:49 PM, Korey Sewell <[email protected]> wrote: > >> There is definitely information in there in that file. >> >> At the very least there are histograms for all the memory accesses in the >> system. >> depending on your config values a chunk of those values will be L2 >> accesses/misses. >> >> There's also tracking of all the transitions in the cache controllers in >> the ruby.stats file. For instance, if there is a transition from Invalid to >> Valid state (toy example), then that's more then likely a cache miss right? >> >> Also, depending on your protocol you may or may not have to add more >> specific stats to the L2 cache controllers. To do that, you'll need to >> understand the profiling code src/mem/ruby/profilers/* and the various >> "printStats" functions in the ruby objects. >> >> -Korey >> >> >> On Thu, May 3, 2012 at 10:11 AM, Hamid Reza Khaleghzadeh < >> [email protected]> wrote: >> >>> I cannot find any useful information about L2 miss count in this file. >>> >>> On 5/3/12, Nilay Vaish <[email protected]> wrote: >>> > On Thu, 3 May 2012, Hamid Reza Khaleghzadeh wrote: >>> > >>> >> Hello guys, >>> >> >>> >> I use ruby_fs.py for simulating a CMP machine. Could you tell me where >>> >> number of L2 cache misses can be found? I cannot find any information >>> >> about >>> >> L2 cache misses in stats.txt file. >>> >> >>> > >>> > All Ruby related statistics are in the file ruby.stats. >>> > _______________________________________________ >>> > gem5-users mailing list >>> > [email protected] >>> > http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users >>> > >>> >>> >>> -- >>> Hamid Reza Khaleghzadeh >>> http://hkhaleghzadeh.webs.com >>> _______________________________________________ >>> gem5-users mailing list >>> [email protected] >>> http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users >>> >> >> >> >> -- >> - Korey >> >> _______________________________________________ >> gem5-users mailing list >> [email protected] >> http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users >> > > > > -- > Hamid Reza Khaleghzadeh > http://hkhaleghzadeh.webs.com > > > > > _______________________________________________ > gem5-users mailing list > [email protected] > http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users >
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