The patch was incorporated into some other recent ruby stat changes recently (1-2 weeks): specifically the removal of the cache profiler, and the counting of hits/misses directly in the sm file. So you should probably update.
The other thing is, I think your complicating your calculations a bit: L2 miss rate = 100*(total L2 misses for all L2 banks) / (total L1 Dcache misses+total L1 Icache misses) Specifically, how are you going to access an L1 cache miss count/rate from an L2 cache in the code? You should just stick to basics when thinking about rates (%/total%): Whenever a request comes from L1port to L2 cache, it is an access, and when that access "misses" (the request has to be forwarded/sent up to directory) it is a miss type. Malek On Wed, Jun 12, 2013 at 12:51 PM, Mahshid Sedghi <mahshid.sed...@gmail.com>wrote: > Thanks for your reply Maxime. But is there anything wrong with the way I > calculate the rates? I see that the patch has been submitted for review > long time back, but has not been applied to the gem5 release yet. Is this > patch reliable? > > Thanks. > Mahshid > > > On Wed, Jun 12, 2013 at 7:29 AM, Maxime Chéramy > <maxime.cher...@gmail.com>wrote: > >> Have a look to http://reviews.gem5.org/r/1467/ but the support of >> MESI_CMP is not correct, you'll have to do some changes. >> >> 2013/6/12 Mahshid Sedghi <mahs...@cse.psu.edu> >> >>> Hi all, >>> >>> I'm trying to calculate L1 and L2 cache miss rates for a full system >>> simulation using ruby (MESI_CMP_directory) + garnet. I dump stats >>> periodically to get the trend of the rates. I can see that in ruby.stats, >>> total_misses for each L1 and L2 cache bank is reported. Also, I can see the >>> events which are happening inside the coherency protocol. So, I use the >>> total "Load" and "Store" counts and calculate the miss rates as the >>> following: >>> >>> L1 Dcache miss rate = 100* (total L1D misses for all L1D caches) >>> /(Loads+Stores) >>> >>> L2 miss rate = 100*(total L2 misses for all L2 banks) / (total L1 Dcache >>> misses+total L1 Icache misses) >>> >>> But for some reason, the rates I am getting does not make sense. I was >>> wondering if this is the right way to calculate the miss rates using ruby >>> statistics. >>> >>> I appreciate any help. >>> Mahshid >>> >>> _______________________________________________ >>> 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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