We are running a timing CPU model with 4 cores in gem5. Ruby is enabled and MOESI_CMP_DIRECTORY is the cache coherence protocol. Benchmark - Blackscholes from Parsec with 64 threads
I am getting all misses as zero. Here is my snippet of rubystats.txt. I am getting other events such as Load, Cache Stats: system.l1_cntrl0.L1IcacheMemory system.l1_cntrl0.L1IcacheMemory_total_misses: 0 system.l1_cntrl0.L1IcacheMemory_total_demand_misses: 0 system.l1_cntrl0.L1IcacheMemory_total_prefetches: 0 system.l1_cntrl0.L1IcacheMemory_total_sw_prefetches: 0 system.l1_cntrl0.L1IcacheMemory_total_hw_prefetches: 0 Cache Stats: system.l1_cntrl0.L1DcacheMemory system.l1_cntrl0.L1DcacheMemory_total_misses: 0 system.l1_cntrl0.L1DcacheMemory_total_demand_misses: 0 system.l1_cntrl0.L1DcacheMemory_total_prefetches: 0 system.l1_cntrl0.L1DcacheMemory_total_sw_prefetches: 0 system.l1_cntrl0.L1DcacheMemory_total_hw_prefetches: 0 --- L1Cache --- - Event Counts - Load [174868554 163855032 221745226 166711739 ] 727180551 Ifetch [924567274 861223004 1180618876 875681854 ] 3842091008 Store [116265701 110546818 138053735 112724748 ] 477591002 L1_Replacement [2419806 232035 2469089 665311 ] 5786241 Own_GETX [322 239 249 138 ] 948 Fwd_GETX [22044 11221 67881 26829 ] 127975 Fwd_GETS [163707 122323 148798 142861 ] 577689 Fwd_DMA [2 0 0 0 ] 2 Inv [3797 5618 9397 10513 ] 29325 Ack [50413 12189 38092 51382 ] 152076 Data [404780 103025 415698 293237 ] 1216740 Exclusive_Data [2070056 152001 2140166 429355 ] 4791578 Writeback_Ack [386312 94307 394124 275575 ] 1150318 Writeback_Ack_Data [2015856 133928 2007161 378049 ] 4534994 Writeback_Nack [0 0 0 3 ] 3 All_acks [233031 28095 203273 79717 ] 544116 Use_Timeout [2070376 152240 2140415 429493 ] 4792524 L1 replacement and Inv is present. But no cache misses. DO I need to enable something to see the cache misses?? Regards, Atish
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