Managing Contention for Shared Resources on Multicore Processors Case Study - 1

Managing Contention for Shared Resources on Multicore Processors - Case Study Example As a result, they ran a group of applications on different schedules, paired differently such that each application had the opportunity to pair with the other applications. They ran each possible schedule in the same memory domain rather than as an individual entity. In doing this they managed to attain the actual degradation of each bench mark while sharing the same memory domain as another bench mark. They then compared the actual best schedule with the estimated best schedule, that is they compared the degradation of the estimated best schedule in relation to the actual best one. They concluded that high-rate-miss applications should not be combined with low-rate-miss applications. Zhuravlev et al.(2) adds that previous works meant to improve thread performance in multicore systems was based on cache contention as it was assumed that it was the main, if not the only cause of performance degradation. They also state that (Zhuravlev et al. 20) "in this context cache contention is suffering extra cache misses because its co-runner (threads running on cores that share the same LLC) bring their own data into the LLC evicting the data of others." As stated by (Federova et al. 45) when a thread requests a cache line that doesnt exist, then a cache miss is registered, and a new cache line must be allocated. Chandra, Guo, Kim and Salihin (nd, p1) indicate that the sharing of a cache by threads in multicore processors is important to prevent redundancy. However, when several threads share the same cache, they compete for the available cache space. The sharing of cache space isnt uniform and therefore, the performance of those threads that access less cache space is greatly reduced. Federova et al. (32) have throughout the analysis aim to prove that the best formula to avoid contention in multicore processor systems is by building a contention-aware scheduler. They state that assigning applications to cores depending on the best possible schedule, may

Analyze the production of M.Butterfly Research Paper

Analyze the production of M.Butterfly - Research Paper Example David Hwang’s M Butterfly is one of the literary works that best speaks of the Asian nation and culture. It showcases the actual traits of Asian people giving birth to a new perception of their capacity in opposed to the world’s stereotyping. David Henry Hwang’s M. Butterfly is a fictional play that is based on historical account of a French diplomat that had an affair with a Chinese opera singer, who is after all a man. The play had its premiere at Eugene O’Neill Theatre on Broadway in the year 1988. The play garnered several Tony Awards. It is contextually rich and is considered as a spectacular, intriguing, and shocking tale that moves audiences not just from the East but also the population of the West. A close examination of this literary work creates an impact to the viewer’s perspective about gender, identity, cultural race, concepts of self and the issues of pervasive implications of stereotyping gender and race. The play is illuminating and shocking, portraying a different perspective to the audience about the grotesque clash of illusion with reality in the complex web of stereotypes. The play of M. Butterfly is set in a present day prison in Paris, France. Points in the history are revealed through flashbacks, dreams and memories. It started with Monsieur Rene Gallimard’s narration about his life at the cell. He dreams of a woman Song Liling, dancing to a love duet. Gallimard continues his hallucination of the events in the opera imagining himself as Pinkerton, a masculine figure. He thought to himself that the events in his past are similar with what happened in the opera, with him as the sensitive one. Scenes of Gallimard’s childhood are shown revealing his deep insecurity with the girls. There is a hint of identity crises in Gallimard based on the flashback scenes in the play. Liling Song, the opera singer, who plays the Madame Butterfly in the play, was