Sun, 07 Jul 2024

RcppSimdJson 0.1.12 on CRAN: Maintenance

A new maintenance release 0.1.12 of the RcppSimdJson package is now on CRAN.

RcppSimdJson wraps the fantastic and genuinely impressive simdjson library by Daniel Lemire and collaborators. Via very clever algorithmic engineering to obtain largely branch-free code, coupled with modern C++ and newer compiler instructions, it results in parsing gigabytes of JSON parsed per second which is quite mindboggling. The best-case performance is ‘faster than CPU speed’ as use of parallel SIMD instructions and careful branch avoidance can lead to less than one cpu cycle per byte parsed; see the video of the talk by Daniel Lemire at QCon.

This release responds to another CRAN request, this time to accomodate compilation under C++20 with g++-14. As this was alreadt addressed upstream in simdjson it was simply a matter of upgrading to the current upstream which Daniel did in a PR.

The (once again very short) NEWS entry for this release follows.

Changes in version 0.1.12 (2024-07-05)

  • Updated benchmarks now include 'yyjsonr'

  • simdjson was upgraded to version 3.95 (Daniel in #92 fixing #91)

  • Additional small update for C++20 compilation under g++-14

Courtesy of my CRANberries, there is also a diffstat report for this release. For questions, suggestions, or issues please use the issue tracker at the GitHub repo.

If you like this or other open-source work I do, you can now sponsor me at GitHub.

This post by Dirk Eddelbuettel originated on his Thinking inside the box blog. Please report excessive re-aggregation in third-party for-profit settings.

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