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 (also voted best talk).
This version brings the new upstream release, thanks to a comprehensive pull request by Daniel Lemire. The short NEWS entry follows.
Changes in version 0.1.6 (2021-09-07)
The C++17 dependency was stated more clearly in the DESCRIPTION file (Dirk)
The simdjson version was updated to release 1.0.0 (Daniel Lemire in #70)
We should point out that the package still has a dependency on C++17 even though simdjson no longer does. Some of our earlier wrapping code uses it, this could be changed. If you, dear reader, would like to work on this please get in touch.
If you like this or other open-source work I do, you can now sponsor me at GitHub.