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base repository: postgresql-cfbot/postgresql
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  • 2 commits
  • 1 file changed
  • 2 contributors

Commits on Mar 13, 2025

  1. Optimize iteration over PGPROC for fast-path lock searches. 

    This commit improves efficiency in FastPathTransferRelationLocks()
and GetLockConflicts(), which iterate over PGPROCs to search for
fast-path locks.

Previously, these functions recalculated the fast-path group during
every loop iteration, even though it remained constant. This update
optimizes the process by calculating the group once and reusing it
throughout the loop.

The functions also now skip empty fast-path groups, avoiding
unnecessary scans of their slots. Additionally, groups belonging to
inactive backends (with pid=0) are always empty, so checking
the group is sufficient to bypass these backends, further enhancing
performance.

Author: Fujii Masao <[email protected]>
Reviewed-by: Heikki Linnakangas <[email protected]>
Reviewed-by: Ashutosh Bapat <[email protected]>
Discussion: https://postgr.es/m/[email protected]
    @MasaoFujii
    MasaoFujii authored and Commitfest Bot committed Mar 13, 2025
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  2. [CF 5494] v3 - Optimizing FastPathTransferRelationLocks() 

    This branch was automatically generated by a robot using patches from an
email thread registered at:

https://commitfest.postgresql.org/patch/5494

The branch will be overwritten each time a new patch version is posted to
the thread, and also periodically to check for bitrot caused by changes
on the master branch.

Patch(es): https://www.postgresql.org/message-id/[email protected]
Author(s): Fujii Masao
    Commitfest Bot committed Mar 13, 2025
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