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  • My AWS Aurora Postgres instance is 100% CPU. What’s next?

    I had to investigate today situation when my AWS Aurora PostgreSQL instance CPU was 100%.I have started to search for a root cause at the database statistic views level. There is a view pg_stat_activity which shows information related to the current activity of each process, such as host ip, last transaction starttime and waitstats ...
    Posted to Maria Zakourdaev (Weblog) by Maria Zakourdaev on October 26, 2018
  • SIMD Extensions for the Database Storage Engine

    For the last 15 years, Intel and AMD have been progressively adding special purpose extensions to their processor architectures. The extensions mostly pertain to vector operations with Single Instruction, Multiple Data (SIMD) concept. The reasoning was that achieving significant performance improvement over each successive generation for the ...
    Posted to Joe Chang (Weblog) by jchang on February 7, 2011
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