From: Tomas Vondra <tomas.vondra@postgresql.org>
To: pgsql-committers@lists.postgresql.org
Subject: pgsql: Add CHECK_FOR_INTERRUPTS into pg_numa_query_pages
Date: Tue, 01 Jul 2025 10:59:35 +0000
Message-ID: <E1uWYi7-004B6r-0Z@gemulon.postgresql.org> (raw)
Add CHECK_FOR_INTERRUPTS into pg_numa_query_pages
Querying the NUMA status can be quite time consuming, especially with
large shared buffers. 8cc139bec34a called numa_move_pages() once, for
all buffers, and we had to wait for the syscall to complete.
But with the chunking, introduced by 7fe2f67c7c to work around a kernel
bug, we can do CHECK_FOR_INTERRUPTS() after each chunk, allowing users
to abort the execution.
Reviewed-by: Christoph Berg <myon@debian.org>
Reviewed-by: Bertrand Drouvot <bertranddrouvot.pg@gmail.com>
Discussion: https://postgr.es/m/aEtDozLmtZddARdB@msg.df7cb.de
Backpatch-through: 18
Branch
------
master
Details
-------
https://git.postgresql.org/pg/commitdiff/bf1119d74a79b68d9c9086e5d32d44fb294a1427
Modified Files
--------------
src/port/pg_numa.c | 3 +++
1 file changed, 3 insertions(+)
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To: pgsql-committers@postgresql.org
Cc: tomas.vondra@postgresql.org, pgsql-committers@lists.postgresql.org
Subject: Re: pgsql: Add CHECK_FOR_INTERRUPTS into pg_numa_query_pages
In-Reply-To: <E1uWYi7-004B6r-0Z@gemulon.postgresql.org>
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