Cheng Chang 0a0151fb99 Remove memcpy from RandomAccessFileReader::Read in direct IO mode (#6455) ... Summary: In direct IO mode, RandomAccessFileReader::Read allocates an internal aligned buffer, and then copies the result into the scratch buffer. If the result is only temporarily used inside a function, there is no need to do the memcpy and just let the result Slice refer to the internally allocated buffer. Pull Request resolved: https://github.com/facebook/rocksdb/pull/6455 Test Plan: make check Differential Revision: D20106753 Pulled By: cheng-chang fbshipit-source-id: 44f505843837bba47a56e3fa2c4dd3bd76486b58		2020-03-06 14:05:12 -08:00
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file_trace_reader_writer.cc	Remove memcpy from RandomAccessFileReader::Read in direct IO mode (#6455)	2020-03-06 14:05:12 -08:00
file_trace_reader_writer.h	Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433)	2020-02-20 12:09:57 -08:00