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author | mainzer <mainzer#hdfgroup.org> | 2020-08-05 20:39:49 (GMT) |
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committer | mainzer <mainzer#hdfgroup.org> | 2020-08-05 20:39:49 (GMT) |
commit | 33f35183cbfdde70ee8f803acb5b735ad4dfe086 (patch) | |
tree | e18d05c2c6b34f4baba1d4b28250dc4cf9d51171 /src/H5Gprivate.h | |
parent | 50f404c887118577034c6412aeaaa1f6db2fe475 (diff) | |
download | hdf5-33f35183cbfdde70ee8f803acb5b735ad4dfe086.zip hdf5-33f35183cbfdde70ee8f803acb5b735ad4dfe086.tar.gz hdf5-33f35183cbfdde70ee8f803acb5b735ad4dfe086.tar.bz2 |
When flushing, the metadata cache attempts to flush entries in increasing
address order. To facilitate this, the metadata cache needs a list of
of dirty entries in increasing address order. This is implemented via a
skip list of all dirty entries in the cache.
To date this skip list has been maintained at all times.
However, profiling indicates that we can avoid significant overhead by
constructing the skip list of dirty entries just before a flush, taking
it down afterwareds, and not maintaining it during normal operation.
This commit implements this optimization for both serial and parallel.
Tested serial and parallel, debug and production on charis and jelly.
Diffstat (limited to 'src/H5Gprivate.h')
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