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base repository: postgresql-cfbot/postgresql
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head repository: postgresql-cfbot/postgresql
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compare: cf/5938
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  • 2 commits
  • 27 files changed
  • 2 contributors

Commits on Aug 30, 2025

  1. Add pg_get_process_memory_context function 

    This adds a function for retrieving memory context statistics
and information from backends as well as auxiliary processes.
The intended usecase is cluster debugging when under memory
pressure or unanticipated memory usage characteristics.

When calling the function it sends a signal to the specified
process to submit statistics regarding its memory contexts
into dynamic shared memory.  Each memory context is returned
in detail, followed by a cumulative total in case the number
of contexts exceed the max allocated amount of shared memory.
Each process is limited to use at most 1Mb memory for this.

A summary can also be explicitly requested by the user, this
will return the TopMemoryContext and a cumulative total of
all lower contexts.

In order to not block on busy processes the caller specifies
the number of seconds during which to retry before timing out.
In the case where no statistics are published within the set
timeout, NULL is returned.
    @Rahila
    Rahila authored and Commitfest Bot committed Aug 30, 2025
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  2. [CF 5938] v34 - Enhancing Memory Context Statistics Reporting 

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

https://commitfest.postgresql.org/patch/5938

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/CAH2L28uL=Vm9E4Uf=tkg2Ki7_uDuAXORHVyCA7K_L=PAQ2p4sA@mail.gmail.com
Author(s): Rahila Syed
    Commitfest Bot committed Aug 30, 2025
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    466353a View commit details
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