Wes McKinney created PARQUET-520:
------------------------------------
Summary: Add support for zero-copy InputStreams on memory-mapped
files
Key: PARQUET-520
URL: https://issues.apache.org/jira/browse/PARQUET-520
Project: Parquet
Issue Type: Improvement
Components: parquet-cpp
Reporter: Wes McKinney
Noted this while working on PARQUET-497. If we are using a memory-mapped file,
then copying data into a {{ScopedInMemoryInputStream}} as we are not is
unnecessary and will yield improved performance. Perhaps this should be made a
property of the {{InputStream}} (i.e. that it support zero-copy reads, and the
returned buffer does not become invalid after future reads as long as the
stream -- the memory map specifically in this example -- is alive)
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
