From b205d7254f9b378ccbeb4e4b859e83687f1d8dc0 Mon Sep 17 00:00:00 2001 From: Neil Fortner Date: Wed, 23 Aug 2023 17:49:51 -0400 Subject: [PATCH] Add RELEASE.txt entry for compound performance regression fix (#3376) (#3416) --- release_docs/RELEASE.txt | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/release_docs/RELEASE.txt b/release_docs/RELEASE.txt index 2772dd8aa61..d817117810a 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