Hi, the miss rates are exactly the same when using the in-order CPU for both when using level 1 cache alone and using it with level 1 and 2 cache. For O3CPU, there is a very minor difference (i.e. a difference of 0.01) but almost the same. This shouldn't be the case, if I only have one level of cache should I not have a higher miss rate in it compared to when using it together with a l2 cache? especially in the case of random accesses to the memory?
On Thu, 22 Oct 2020 at 20:03, Abhishek Singh <abhishek.singh199...@gmail.com> wrote: > Hi, > > Does this happen with O3 CPU or just the in order CPU? > > On Thu, Oct 22, 2020 at 1:01 PM Muhammad Aamir via gem5-users < > gem5-users@gem5.org> wrote: > >> Hi everyone, >> >> I have noticed that the stat: >> "system.cpu.dcache.overall_miss_rate::total" is the same if I only use 1 >> level of cache or use the system with a level 2 cache. As we know it >> should change but it remains exactly the same, how is this possible? Would >> someone be kind enough to explain why this is so or is there something I am >> missing while configuring the config scripts? >> >> >> the script that i am running with 2 level of caches: ./build/X86/gem5.opt >> ./configs/example/se.py --cmd=../../gapbs-master/src/pr7 >> --cpu-type=TimingSimpleCPU --l1d_size=1kB --l1i_size=1kB --l2_size=2kB >> --cacheline_size=16 --caches --l2cache >> >> >> the script that I am running with just 1 level of >> cache: ./build/X86/gem5.opt ./configs/example/se.py >> --cmd=../../gapbs-master/src/pr7 --cpu-type=TimingSimpleCPU --l1d_size=1kB >> --l1i_size=1kB --cacheline_size=16 --cache >> >> any explanation would be highly appreciated. >> >> Thanks >> _______________________________________________ >> gem5-users mailing list -- gem5-users@gem5.org >> To unsubscribe send an email to gem5-users-le...@gem5.org >> %(web_page_url)slistinfo%(cgiext)s/%(_internal_name)s > > -- > Best Regards, > Abhishek >
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