rapidsai/cudf
GitHub で見る[FEA] `cudf.read_text` does not use the GDS-enabled datasource
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#13,880 opened on 2023年8月14日
PerformancePythoncuIOfeature requestgood first issuelibcudf
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説明
libcudf's multibyte_split has multiple ways to specify input data source when reading from a file:
-
auto const source = cudf::io::text::make_source_from_file(temp_file_name); // no GDS -
auto const datasource = cudf::io::datasource::create(temp_file_name);auto const source = cudf::io::text::make_source(*datasource); // supports GDS
cudf.read_text uses the first option to create the data_chunk_source object, so it does not benefit from potential direct reads with GDS.
cudf.read_text should create a cudf::io::datasource object to improve performance on GDS-enabled systems.