Streaming I/O and vectored I/O

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Workshop Title

Thomas Munro, 2024.pgconf.dev, Streaming I/O and vectored I/O

Date: October 2024

Resources

• Video: https://www.youtube.com/watch?v=7HHcD2shS4o

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The initiated mailing thread: Streaming I/O, vectored I/O (WIP)

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read stream interface & implementation:
https://github.com/postgres/postgres/blob/master/src/include/storage/read_stream.h
https://github.com/postgres/postgres/blob/master/src/backend/storage/aio/read_stream.c

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Two read stream use cases:

• BitmapHeapScan streaming read user and prelim refactoring
• Using read_stream in index vacuum

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Another talk same topic on PGConf.EU 2024: https://www.youtube.com/watch?v=8d6YrSByNew