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authorNeil Fortner <fortnern@gmail.com>2023-08-23 21:49:51 (GMT)
committerGitHub <noreply@github.com>2023-08-23 21:49:51 (GMT)
commitb155ec5b102781fc1eac72d24db0bc90ffa80aea (patch)
treef717e88baf2042219bf480f40711aa29c03e7d7a /release_docs/RELEASE.txt
parent755dd4ea37b2b116a6c0301d27366667ab10238d (diff)
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Add RELEASE.txt entry for compound performance regression fix (#3376) (#3416)
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diff --git a/release_docs/RELEASE.txt b/release_docs/RELEASE.txt
index 2772dd8..d817117 100644
--- a/release_docs/RELEASE.txt
+++ b/release_docs/RELEASE.txt
@@ -292,6 +292,16 @@ Bug Fixes since HDF5-1.14.0 release
===================================
Library
-------
+ - Fixed performance regression with some compound type conversions
+33
+ In-place type conversion was introduced for most use cases in 1.14.2.
+ While being able to use the read buffer for type conversion potentially
+ improves performance by performing the entire I/O at once, it also
+ disables the optimized compound type conversion used when the destination
+ is a subset of the source. Disabled in-place type conversion when using
+ this optimized conversion and there is no benefit in terms of the I/O
+ size.
+
- Fixed an assertion in a previous fix for CVE-2016-4332
An assert could fail when processing corrupt files that have invalid