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relnote: add ARM64 spinlock item

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Reported-by: Jonathan Katz

Discussion: per private email
This commit is contained in:
Bruce Momjian
2022-05-10 16:47:48 -04:00
parent 653443ed83
commit 40131af573
1 changed files with 11 additions and 0 deletions
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doc/src/sgml/release-15.sgml
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@ -838,6 +838,17 @@ Author: David Rowley <drowley@postgresql.org>
<para> <para>
Improve the performance of window functions that use row_number(), rank(), and count() (David Rowley) Improve the performance of window functions that use row_number(), rank(), and count() (David Rowley)
</para> </para>
</listitem>
<!--
Author: Tom Lane <tgl@sss.pgh.pa.us>
2022-04-06 [a82a5eee3] Use ISB as a spin-delay instruction on ARM64.
-->
<listitem>
<para>
Improve the performance of spinlocks on high-core-count ARM64 systems (Geoffrey Blake)
</para>
</listitem> </listitem>
</itemizedlist> </itemizedlist>