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help / color / mirror / Atom feedFrom: Alexander Lakhin <[email protected]>
To: Melanie Plageman <[email protected]>
To: Andres Freund <[email protected]>
Cc: Tomas Vondra <[email protected]>
Cc: David Rowley <[email protected]>
Cc: Kirill Reshke <[email protected]>
Cc: Chao Li <[email protected]>
Cc: Andrey Borodin <[email protected]>
Cc: Xuneng Zhou <[email protected]>
Cc: Robert Haas <[email protected]>
Cc: PostgreSQL Hackers <[email protected]>
Cc: Heikki Linnakangas <[email protected]>
Subject: Re: eliminate xl_heap_visible to reduce WAL (and eventually set VM on-access)
Date: Fri, 3 Apr 2026 08:00:00 +0300
Message-ID: <[email protected]> (raw)
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Hello Melanie and Andres,
31.03.2026 19:19, Melanie Plageman wrote:
> Thanks for the reply! I have committed the patches in this thread and
> marked the CF entry accordingly.
I've come across an interesting failure produced starting from 378a21618:
when using a build made with CFLAGS="-DRELCACHE_FORCE_RELEASE" and
echo "io_method = sync" >/tmp/temp.config, the test run:
TEMP_CONFIG=/tmp/temp.config TESTS=temp make -s check-tests
fails as below:
--- .../src/test/regress/expected/temp.out 2026-02-13 06:15:55.887368624 +0200
+++ .../src/test/regress/results/temp.out 2026-04-03 07:51:36.735504156 +0300
@@ -493,11 +493,7 @@
-- Check that read streams deal with lower number of pins available
SELECT count(*), max(a) max_a, min(a) min_a, max(cnt) max_cnt FROM test_temp;
- count | max_a | min_a | max_cnt
--------+-------+-------+---------
- 10000 | 10000 | 1 | 0
-(1 row)
-
+ERROR: no empty local buffer available
ROLLBACK;
Could you look please, if it indicates some regression?
Best regards,
Alexander
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Subject: Re: eliminate xl_heap_visible to reduce WAL (and eventually set VM on-access)
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