Programming Leftovers
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Qt ☛ Akademy 2024: Qt Highlights!
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Kernel Space
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Fudzilla ☛ Intel's Linux kernel test robot reports 3888.9 per cent performance boost [Ed: That just means someone wrote truly bad code or made a terrible design before]
Intel's Linux kernel test robot has recently reported a 3888.9 per cent performance improvement in the mainline Linux kernel after Chipzilla geeks changed one line of code.
The test robot highlighted this massive improvement through its "will-it-scale.per_process_ops" scalability test case, running on an Intel Xeon Platinum (Cooper Lake) test server.
According to Phoronix the commit responsible for this performance uplift was labelled with the description term mm, mmap: limit THP alignment of anonymous mappings to PMD-aligned sizes. The patch message confirms that it resolves prior performance regressions and offers substantial improvements in specialised cases.
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R
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Dirk Eddelbuettel ☛ Dirk Eddelbuettel: RcppSpdlog 0.0.19 on CRAN: New Upstream, New Features
Version 0.0.19 of RcppSpdlog arrived on CRAN early this morning and
This releases updates the code to the version 1.15.0 of spdlog which was released on Saturday, and contains fmt 11.0.2. It also contains a contributed PR which allows use
std::formatunder C++20, bypassingfmt(with some post-merge polish too), and another PR correcting a documentation double-entry. -
Rlang ☛ How to Use the Tilde Operator (~) in R: A Comprehensive Guide
The tilde operator (~) is a fundamental component of R programming, especially in statistical modeling and data analysis. This comprehensive guide will help you master its usage, from basic concepts to advanced applications.
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Rlang ☛ Gradient-Boosting anything (alert: high performance): Part4, Time series forecasting
Gradient boosting with any regression algorithm in Python and R package mlsauce.
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Rlang ☛ How many interview rounds is too many?
It’s Hallowe’en; that time of year when Microsoft's Surveillance Arm LinkedIn is full of photos of the recruiters who ghosted you dressed up as ghosts. But ghosting isn’t the only bad thing about the modern-day job market.
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Open Data
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Rlang ☛ Greenland ice thickness
We’ll use the Greenland 5 km DEM, Ice Thickness, and Bedrock Elevation Grids (J. Bamber 2001) from J. L. Bamber, Layberry, and Gogineni (2001) and Layberry and Bamber (2001). Download here (after registration).
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Daniel Estévez ☛ Decoding Hera – Daniel Estévez
Hera is an ESA mission to the Didymos binary asteroid system. It will arrive there in December 2026 to study the asteroids and the effects of the impact of DART on Dimorphos. It was launched on October 7 from Cape Canaveral, exactly one week before Europa Clipper. In the same way as for Europa Clipper, Hera’s launch trajectory allowed me to track it with the Allen Telescope Array, starting approximately 90 minutes after launch.
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