{"product_id":"performance-evaluation-of-directory-based-cache-coherence-protocols-von-ipek-abasikeles-und-m-fatih-akay","title":"PERFORMANCE EVALUATION OF DIRECTORY¿BASED CACHE COHERENCE PROTOCOLS","description":"\u003cp\u003eThe performance of three directory-based cache- coherence protocols; strict request-response,  intervention forwarding and reply forwarding are  evaluated via simulation on the SOME-Bus, which is a  fiber-optic interconnection network supporting DSM.  The simulated system contains 64 nodes, each of which has a processor, cache controller, directory  controller and output channel. Simulations have been  conducted for each protocol to measure average  processor utilization and average network latency for varying values of DSM parameters such as the ratio of the mean channel service time to mean thread run time (T\/R), probability of a cache block being in modified state {P(M)}, the fraction of write misses {P(W)} and under different traffic patterns. The results reveal that the performance of all protocols decreases under all traffic patterns as P(W),P(M) or T\/R increases. The effect of P(W) on the performance of the protocols reduces as P(M) increases. Reply forwarding performs the best for high P(M) values, intervention forwarding yields the best performance for low P(M) and high P(W) values and strict request-response is the best protocol under hot-region (HR) traffic.\u003c\/p\u003e\u003cdiv class=\"aw-variant-hidden-subtitle-div\" id=\"aw-variant-subtitle-9783844391879\"\u003e\u003ch3\u003eON AN OPTICAL INTERCONNECTION NETWORK SUPPORTING DISTRIBUTED SHARED MEMORY\u003c\/h3\u003e\u003c\/div\u003e","brand":"Autorenwelt Shop","offers":[{"title":"Softcover - 9783844391879","offer_id":39495938867293,"sku":"9783844391879","price":49.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0622\/files\/180d4281-4f95-4778-988e-777bf6e255d4.jpg?v=1758952468","url":"https:\/\/shop.autorenwelt.de\/en\/products\/performance-evaluation-of-directory-based-cache-coherence-protocols-von-ipek-abasikeles-und-m-fatih-akay","provider":"Autorenwelt Shop","version":"1.0","type":"link"}