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| author | Vailin Choi <vchoi@hdfgroup.org> | 2019-10-09 20:03:12 (GMT) |
|---|---|---|
| committer | Vailin Choi <vchoi@hdfgroup.org> | 2019-10-09 20:03:12 (GMT) |
| commit | 19c2eb2800a48d0bd5a8af7757e21cc5cd22fa3c (patch) | |
| tree | 9014b153133e8772d77efb17cad62fba2d917e9a /release_docs | |
| parent | e487737b4fb7267385d8219796263ef29c3b9b95 (diff) | |
| parent | bffa18b684de83359f4ad25e11f4ad0b15f34040 (diff) | |
| download | hdf5-19c2eb2800a48d0bd5a8af7757e21cc5cd22fa3c.zip hdf5-19c2eb2800a48d0bd5a8af7757e21cc5cd22fa3c.tar.gz hdf5-19c2eb2800a48d0bd5a8af7757e21cc5cd22fa3c.tar.bz2 | |
Merge pull request #1962 in HDFFV/hdf5 from ~VCHOI/my_third_fork:bugfix/112_HDFFV-10585-investigate-slowness-of-regular to hdf5_1_12
* commit 'bffa18b684de83359f4ad25e11f4ad0b15f34040':
Merge pull request #1957 in HDFFV/hdf5 from ~LRKNOX/hdf5_lrk:develop to develop
Merge pull request #1934 in HDFFV/hdf5 from ~VCHOI/my_third_fork:bugfix/HDFFV-10585-investigate-slowness-of-regular to develop
Diffstat (limited to 'release_docs')
| -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 35247cc..a43768b 100644 --- a/release_docs/RELEASE.txt +++ b/release_docs/RELEASE.txt @@ -370,6 +370,19 @@ 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 |