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  1. Core Server
  2. SERVER-12304

Query concurrency regression on windows

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Details

    • Icon: Bug Bug
    • Resolution: Won't Fix
    • Icon: Critical - P2 Critical - P2
    • None
    • 2.5.4
    • Concurrency, Querying
    • Windows Server 2008 R2/Linux Red Hat 6.4
      Linux ip-10-232-37-146.ec2.internal 2.6.32-358.14.1.el6.x86_64 #1 SMP Mon Jun 17 15:54:20 EDT 2013 x86_64 x86_64 x86_64 GNU/Linux
    • Fully Compatible
    • ALL
    • Server 2.7.5, Server 2.7.6, Platform 00 2/20/15

    Description

      The concurrency of query subsystem is somewhat lower in 2.6.
      This is most evident on Windows, but affect Linux and Solaris as well.

      Example queries that show the slowdown in throughput (ops/s):

      Platform and version Query 1 Query 2 Query 3
      Red Hat 2.4.8 2160.56090475 2009.83491425 1159.27502825
      Red Hat master 1924.269752 1792.2990925 447.8258245

      githash of master: 06851f4859a61019a17147ea96c4e6d9462f354b

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            mark.benvenuto@mongodb.com Mark Benvenuto
            davide.italiano Davide Italiano
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            Dates

              Created:
              Updated:
              Resolved: