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Last active September 3, 2020 16:22
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GSoC 2020 Project Report: Fast Merging of RNTuple Data Sets
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report.md

Pull requests

Complete list: https://github.com/root-project/root/pulls?q=author%3Amxxo+created%3A%3C2020-09-01

Highlights

Low-level merge functions

  • declare RNTuple is mergeable by hadd (#6008)
  • hadd bridge to call RNTuple merge functions (#6101)
  • implement low-level raw page read and write functions (#6105)

Investigation of asynchronous IO with io_uring

  • implement parallel reads using io_uring (#6162)
  • build infrastructure changes to include the io_uring userspace library liburing (#5919)

Ergonomic improvements

  • debug output for low-level RNTuple structures (#6025)
  • add builder interface for RNTuple field descriptors (#5934)
  • check for valid field names (#5879)
  • implement iterator over RNTuple field descriptors (#5848)
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