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Сообщение от Paul Kellerman
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по EAV мне тоже ждать?
п.с. ну чем гугл не угодил
Hyper-threading: Oracle and VMware vSphere 5
Опубликовано: Sam Lucido в Everything Oracle at EMC в 02.11.2011 14:57:46
On some Intel processors each physical processor core can behave like two logical processors. The vSphere 5 Resource Management manual summarizes it very well, “While hyperthreading does not double the performance of a system, it can increase performance by better utilizing idle resources leading to greater throughput for certain important workload types. An application running on one logical processor of a busy core can expect slightly more than half of the throughput that it obtains while running alone on a non-hyperthreaded processor. Hyperthreading performance improvements are highly application-dependent, and some applications might see performance degradation with hyperthreading because many processor resources (such as the cache) are shared between logical processors.”