Performance of caches - computer architecture, Computer Engineering

Performance of caches:

      Amdahl's Law regarding overall speed up:

 

354_Performance of caches1.png

 

             Alternatively, CPU stall can be considered:                                                                  

CPU execution time =( CPU clock cycle + Memory stall cycle)*clock cycle

The number of memory stall cycle depends:

Memory stall cycle=IC * Memory reference per instruction *Miss rate *Miss penalty

Table: Direct mapped cache,32-byte block ,SPEC92,DEC station 5000

 

1340_Performance of caches.png

 

Posted Date: 10/13/2012 5:17:46 AM | Location : United States







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