diff options
Diffstat (limited to 'release_docs/RELEASE.txt')
| -rw-r--r-- | release_docs/RELEASE.txt | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/release_docs/RELEASE.txt b/release_docs/RELEASE.txt index 9c91a0b..ba9af1b 100644 --- a/release_docs/RELEASE.txt +++ b/release_docs/RELEASE.txt @@ -362,6 +362,19 @@ Bug Fixes since HDF5-1.10.3 release Library ------- + - Fixed the slowness of regular hyperslab selection in a chunked dataset + + It was reported that the selection of every 10th element from a 20G + chunked dataset was extremely slow and sometimes could hang the system. + The problem was due to the iteration and the building of the span tree + for all the selected elements in file space. + + As the selected elements are going to a 1-d contiguous single block + memory space, the problem was fixed by building regular hyperslab selections + in memory space for the selected elements in file space. + + (VC - 2019/09/26, HDFFV-10585) + - Fixed a bug caused by bad tag value when condensing object header messages |