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  • Performance impact: hyperthreading for OLTP queries -- II

    This is in part a response to a comment by Paul White (@SQL_Kiwi) to my previous post on the performance impact of enabling hyperthreading (HT) on OLTP queries, and in part due to my desire to capture a more complete set of test data for future investigation on this very topic. I’m posting below the results of re-running the same exact test as ...
    Posted to Linchi Shea (Weblog) by Linchi Shea on January 11, 2012
  • Performance impact: hyperthreading for OLTP queries

    My previous post focuses on the performance impact of enabling hyperthreading (HT) on a machine with four Intel Westmere-EX processors on reporting queries. Let’s turn our attention to OLTP queries. To oversimplify it, reporting queries are generally processed by scanning a large number of pages, whereas quick index seeks are the hallmark of OLTP ...
    Posted to Linchi Shea (Weblog) by Linchi Shea on January 5, 2012
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