Cache ML -- layer on top of joblib to cache parsed datasets, dramatically reducing load time of large data files. Also supports encryption at rest.
Project description
Cache ML – layer on top of joblib to cache parsed datasets, dramatically reducing load time of large data files. Also supports encryption at rest. Currently supported backends are local filesystem and S3.
Example Usage
Here is an example from a Jupyter notebook:
import pandas as pd from cacheml.cache import LocalFile, Cache cache = Cache() @cache.cache # this function's result will be cached def read_and_filter_commits(commits_file_obj): return pd.read_csv(commits_file_obj.path) ts_all = read_and_filter_commits(LocalFile(commits.csv.gz))
Performance Test Results
There are from running the unit tests which simulate loading the time series data from datahut.ai, which is in a 216MB compressed csv file. The first case just loads into a dataframe, while the second case does some additional processing (sorting, removing entries outside a time range).
File location |
Time for raw df read |
Time for initial read and caching of file |
Time for cached read |
---|---|---|---|
Local File |
134.0 |
130.9 |
0.41 |
S3 |
153.6 |
144.6 |
0.38 |
File location |
Time for original function |
Time for initial read and caching of file |
Time for cached read |
---|---|---|---|
Local File |
139.6 |
142.49 |
1.04 |
S3 |
153.4 |
155.8 |
0.99 |
Copyright
Copyright 2021 by Benedat LLC. Available under the Apache 2.0 license.
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