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  1. MariaDB Server
  2. MDEV-6530

Examine and apply Power8 patches suggested by Stewart Smith

    Details

    • Type: Task
    • Status: Open
    • Priority: Major
    • Resolution: Unresolved
    • Fix Version/s: 10.0
    • Component/s: None
    • Labels:
      None

      Description

      See linked tasks for the list of patches.

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              svoj Sergey Vojtovich added a comment -

              As we don't use fast mutexes since MDEV-5081 is fixed, we're probably not interested in the following patches:
              Bug#72805 - mutex_delay() creating excess memory traffic, GCC mem barrier needed
              http://bugs.mysql.com/bug.php?id=72805
              Bug#72806 - mutex_delay() missing x86 pause instruction optimization
              http://bugs.mysql.com/bug.php?id=72806
              Bug#72807 - Set thread priority in my_pthread_fastmutex_lock
              http://bugs.mysql.com/bug.php?id=72807

              Show
              svoj Sergey Vojtovich added a comment - As we don't use fast mutexes since MDEV-5081 is fixed, we're probably not interested in the following patches: Bug#72805 - mutex_delay() creating excess memory traffic, GCC mem barrier needed http://bugs.mysql.com/bug.php?id=72805 Bug#72806 - mutex_delay() missing x86 pause instruction optimization http://bugs.mysql.com/bug.php?id=72806 Bug#72807 - Set thread priority in my_pthread_fastmutex_lock http://bugs.mysql.com/bug.php?id=72807
              Hide
              svoj Sergey Vojtovich added a comment -

              MySQL "Bug#72829 - LOCK_grant is major contention point, leaves 30-40% idle CPU." should have been fixed by Monty long time ago.

              Show
              svoj Sergey Vojtovich added a comment - MySQL "Bug#72829 - LOCK_grant is major contention point, leaves 30-40% idle CPU." should have been fixed by Monty long time ago.

                People

                • Assignee:
                  axel Axel Schwenke
                  Reporter:
                  svoj Sergey Vojtovich
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                  Dates

                  • Created:
                    Updated: