From: PG Bug reporting form <noreply@postgresql.org>
To: pgsql-bugs@lists.postgresql.org
Cc: szmscy4nfxk@protonmail.com
Subject: BUG #19096: Hugepages configuration is probably not reserving the allocated number of pages
Date: Tue, 28 Oct 2025 09:37:18 +0000
Message-ID: <19096-9c7bdf8a427906f3@postgresql.org> (raw)
The following bug has been logged on the website:
Bug reference: 19096
Logged by: dex terity
Email address: szmscy4nfxk@protonmail.com
PostgreSQL version: 18.0
Operating system: Debian 12, 13
Description:
Thanks for Postgresql
I have been exploring hugepages functionality in PG and other applications,
found out there's actually a worthy performance improvement. The problem is
that while other applications such as libvirt, php all play nice with HP, if
I launch PG with HP then the next apps will show problems, even though the
number of pages is in excess. Without PG it is possible to run any
combination of apps and instances without problems. PG runs happy when alone
or with one libvirt vm. One thing I noticed is PG does not reserve the full
number of pages when started... maybe that's the problem.
Regards
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Reply to all the recipients using the --to and --cc options:
reply via email
To: pgsql-bugs@postgresql.org
Cc: noreply@postgresql.org, pgsql-bugs@lists.postgresql.org, szmscy4nfxk@protonmail.com
Subject: Re: BUG #19096: Hugepages configuration is probably not reserving the allocated number of pages
In-Reply-To: <19096-9c7bdf8a427906f3@postgresql.org>
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
This inbox is served by DDX for PostgreSQL; see mirroring instructions
for how to clone and mirror all data and code used for this inbox