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| author | Quincey Koziol <koziol@hdfgroup.org> | 2002-06-05 15:19:07 (GMT) |
|---|---|---|
| committer | Quincey Koziol <koziol@hdfgroup.org> | 2002-06-05 15:19:07 (GMT) |
| commit | 1eb15039114f4bcda7269cc406111138ceba1f0f (patch) | |
| tree | fe953b93bf77b54218ceacbac8083886a3d7f5b8 /release_docs | |
| parent | 1500b00b079e8f50b4836e3156d76ce5a7f178eb (diff) | |
| download | hdf5-1eb15039114f4bcda7269cc406111138ceba1f0f.zip hdf5-1eb15039114f4bcda7269cc406111138ceba1f0f.tar.gz hdf5-1eb15039114f4bcda7269cc406111138ceba1f0f.tar.bz2 | |
[svn-r5535] Purpose:
New feature.
Description:
Added a "small data" block allocation mechanism to the library, similar to
the mechanism used for allocating metadata currently.
See the RFC for more details:
http://hdf.ncsa.uiuc.edu/RFC/SmallData/SmallData.html
This reduces the number of I/O operations which hit the disk for my test
program from 19 to 15 (i.e. from 393 to 15, overall).
Platforms tested:
Solaris 2.7 (arabica) w/FORTRAN and FreeBSD 4.5 (sleipnir) w/C++
Diffstat (limited to 'release_docs')
| -rw-r--r-- | release_docs/RELEASE.txt | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/release_docs/RELEASE.txt b/release_docs/RELEASE.txt index 7a8a71b..8f4fd7e 100644 --- a/release_docs/RELEASE.txt +++ b/release_docs/RELEASE.txt @@ -42,6 +42,8 @@ New Features ========= o General --------- + * Added internal "small data" aggregation, which can reduce the number of + actual I/O calls made, improving performance. QAK - 2002/06/05 * Improved internal metadata aggregation, which can reduce the number of actual I/O calls made, improving performance. Additionally, this can reduce the size of files produced. QAK - 2002/06/04 |