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| author | Dana Robinson <43805+derobins@users.noreply.github.com> | 2023-10-23 19:45:41 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2023-10-23 19:45:41 (GMT) |
| commit | d76d591555c57f95460e23a12baff66c6150a124 (patch) | |
| tree | fb070152b76be2b82f1b9c758057b5a8aeb2d5b0 /release_docs/RELEASE.txt | |
| parent | 66396cadb14faf892907b1b7fd2f21854b7655f4 (diff) | |
| download | hdf5-d76d591555c57f95460e23a12baff66c6150a124.zip hdf5-d76d591555c57f95460e23a12baff66c6150a124.tar.gz hdf5-d76d591555c57f95460e23a12baff66c6150a124.tar.bz2 | |
Add a simple cache to the ros3 VFD (#3753)
Adds a small cache of the first N bytes of a file opened with the
read-only S3 (ros3) VFD, where N is 4kiB or the size of the file,
whichever is smaller. This avoids a lot of small I/O operations
on file open.
Addresses GitHub issue #3381
Diffstat (limited to 'release_docs/RELEASE.txt')
| -rw-r--r-- | release_docs/RELEASE.txt | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/release_docs/RELEASE.txt b/release_docs/RELEASE.txt index 0239a9e..19c7831 100644 --- a/release_docs/RELEASE.txt +++ b/release_docs/RELEASE.txt @@ -228,6 +228,16 @@ New Features Library: -------- + - Added a simple cache to the read-only S3 VFD + + The read-only S3 VFD now caches the first N bytes of a file stored + in S3 to avoid a lot of small I/O operations when opening files. + This cache is per-file and created when the file is opened. + + N is currently 4kiB or the size of the file, whichever is smaller. + + Addresses GitHub issue #3381 + - Added new API function H5Pget_actual_selection_io_mode() This function allows the user to determine if the library performed |