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  1. MariaDB Server
  2. MDEV-40169

With high number of threads , performance decrease over time

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      After some running time with many short running queries (1000+) performance degration can be seen, which is difficult to reproduce.

      This not happened with 10.6.18, but seen in 10.6.20 and still exists 10.6.25 (10.6.19 was not tested)

      So maybe a regression of
      https://jira.mariadb.org/browse/MDEV-34515

      ?
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      After some running time with many short running queries (1000+) performance degration can be seen, which is difficult to reproduce. This not happened with 10.6.18, but seen in 10.6.20 and still exists 10.6.25 (10.6.19 was not tested) So maybe a regression of https://jira.mariadb.org/browse/MDEV-34515 ?
    • Q4/2026 Server Maintenance

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        Bug - A problem which impairs or prevents the functions of the product. MDEV-21423 lock-free trx_sys get performance regression cause by lf_find and ut_delay

        • Critical - Crashes, loss of data, severe memory leak.
        • Closed

        Bug - A problem which impairs or prevents the functions of the product. MDEV-34515 Contention between secondary index UPDATE and purge due to large innodb_purge_batch_size

        • Critical - Crashes, loss of data, severe memory leak.
        • Closed

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            marko Marko Mäkelä
            Richard Richard Stracke
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