[ https://issues.apache.org/jira/browse/PARQUET-517?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Wes McKinney updated PARQUET-517: --------------------------------- Fix Version/s: cpp-1.6.0 > Ensuring aligned memory on encode / decode hot paths for SSE optimizations > -------------------------------------------------------------------------- > > Key: PARQUET-517 > URL: https://issues.apache.org/jira/browse/PARQUET-517 > Project: Parquet > Issue Type: Improvement > Components: parquet-cpp > Reporter: Wes McKinney > Priority: Major > Fix For: cpp-1.6.0 > > > We are using {{std::vector}} in many places for memory allocation; if we want > to use SSE on this memory we may run into some problems. > Couple things we should do > * Add an STL allocator for {{std::vector}} that ensure 16-byte aligned memory > * Check user-provided memory for alignment before utilizing an > SSE-accelerated routine (e.g. SSE hash functions for dictionary encoding) and > decide whether to copy and use SSE or no-copy and use no-SSE code. -- This message was sent by Atlassian JIRA (v7.6.3#76005)