What's the degree of the prefetcher? I have found out the number like this for degree-4
On Sat, Feb 4, 2012 at 12:30 PM, Mahmood Naderan <[email protected]>wrote: > hi > While simulating a workload using X86_SE, I noticed that L2 misses are > large but prefetch issue rate is very very small. > > system.l2.prefetcher.num_hwpf_identified > 220 # number of hwpf identified > system.l2.prefetcher.num_hwpf_already_in_mshr > 0 # number of hwpf that were already > in mshr > system.l2.prefetcher.num_hwpf_already_in_cache > 17 # number of hwpf that were already > in the cache > system.l2.prefetcher.num_hwpf_already_in_prefetcher > 0 # number of hwpf that were already > in the prefetch queue > system.l2.prefetcher.num_hwpf_evicted > 0 # number of hwpf removed due to no > buffer left > system.l2.prefetcher.num_hwpf_removed_MSHR_hit > 0 # number of hwpf removed because > MSHR allocated > system.l2.prefetcher.num_hwpf_issued > 203 # number of hwpf issued > system.l2.prefetcher.num_hwpf_span_page > 0 # number of hwpf spanning a virtual > page > system.l2.prefetcher.num_hwpf_squashed_from_miss > 0 # number of hwpf that got squashed > due to a miss aborting calculation time > > system.l2.ReadReq_hits > 7628303 # number of ReadReq hits > system.l2.Writeback_hits > 138429 # number of Writeback hits > system.l2.ReadExReq_hits > 17957 # number of ReadExReq hits > system.l2.demand_hits > 7646260 # number of demand > (read+write) hits > system.l2.overall_hits > 7646260 # number of overall hits > system.l2.ReadReq_misses > 21786661 # number of ReadReq misses > system.l2.ReadExReq_misses > 27500 # number of ReadExReq misses > system.l2.demand_misses > 21814161 # number of demand > (read+write) misses > system.l2.overall_misses > 21814161 # number of overall misses > > > > As you can see number of misses are much larger than hits, but number > of prefetches are very very small. > > Is there any suggestion about that? > Thanks > -- > // Naderan *Mahmood; > _______________________________________________ > gem5-users mailing list > [email protected] > http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users > -- *thanks®ards * *BISWABANDAN*
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