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| author | Lion Krischer <krischer@geophysik.uni-muenchen.de> | 2016-05-27 17:06:56 +0200 |
|---|---|---|
| committer | Lion Krischer <krischer@geophysik.uni-muenchen.de> | 2016-06-06 19:51:12 +0200 |
| commit | 2de9651b99da9d3308de5df510cfd28c1a3a0f19 (patch) | |
| tree | cfe67667ac9620a2668d1d06928f5b5008868ad3 /doc | |
| parent | f65b233dc5689ecbb79a4ed8a383ef0251bc39c6 (diff) | |
| download | numpy-2de9651b99da9d3308de5df510cfd28c1a3a0f19.tar.gz | |
ENH: Changing FFT cache to a bounded LRU cache
Replaces the simple dictionary caches for the twiddle factors of
numpy.fft to bounded LRU (least recently used) caches. The caches can
thus no longer grow without bounds.
See #7686.
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/release/1.12.0-notes.rst | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/doc/release/1.12.0-notes.rst b/doc/release/1.12.0-notes.rst index 9302e02c6..028d77663 100644 --- a/doc/release/1.12.0-notes.rst +++ b/doc/release/1.12.0-notes.rst @@ -185,6 +185,13 @@ Add ``bits`` attribute to ``np.finfo`` This makes ``np.finfo`` consistent with ``np.iinfo`` which already has that attribute. +Caches in `np.fft` are now bounded in total size and item count +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +The caches in `np.fft` that speed up successive FFTs of the same length can no +longer grow without bounds. They have been replaced with LRU (least recently +used) caches that automatically evict no longer needed items if either the +memory size or item count limit has been reached. + Changes ======= |