yes. The degree is 4. One more question is that what is the *unit* of degree? Does it mean 4 blocks? or it means 4 memory address?
On 2/4/12, biswabandan panda <[email protected]> wrote: > 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* > -- -- // Naderan *Mahmood; _______________________________________________ gem5-users mailing list [email protected] http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users
