Hi Ali, I want to confirm that when we report the miss rate for detailed mode (data cache), should we use dcache.overall_mshr_miss_rate or dcache.overall_miss_rate?
How is the dcache.overall_mshr_miss_rate calculated? Is it # mshr misses/# overall accesses? If I understand correctly, using dcache.overall_miss_rate should get similar result as atomic mode. Thanks! Best regards Fangfei From: gem5-users-boun...@gem5.org [mailto:gem5-users-boun...@gem5.org] On Behalf Of Ali Saidi Sent: 2013年1月30日 11:50 To: gem5 users mailing list Subject: Re: [gem5-users] Understanding the dcache.overall_miss_rate in stat.txt Hi Si, I imagine you're sampling multiple times? THe cpu.data vs switch_cpu.data is because the transition between CPU models when you restored from a checkpoint. I imagine the second switch_cpus is a another sample. Note you probably want overall_mshr_miss_rate. Thanks, Ali On 30.01.2013 09:35, Si Chen wrote: Hi all, I am running bbench on arm detailed mode. But I have some trouble of understanding the stat results. I found that there are five different values in the stat for the dcache.overall_miss_rate. system.cpu.dcache.overall_miss_rate::switch_cpus.data 0.163675 # miss rate for overall accesses system.cpu.dcache.overall_miss_rate::cpu.data 0.333333 # miss rate for overall accesses system.cpu.dcache.overall_miss_rate::total 0.163678 # miss rate for overall accesses system.cpu.dcache.overall_miss_rate::switch_cpus.data 0.065822 # miss rate for overall accesses system.cpu.dcache.overall_miss_rate::total 0.065822 # miss rate for overall accesses What is the difference between them? Which one should I refer to as the overall miss rate? Why there are two entirely different total dcache.overall_miss_rate? Thanks, Si _______________________________________________ gem5-users mailing list gem5-users@gem5.org<mailto:gem5-users@gem5.org> http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users
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