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| | | Hey-yo, | Sorry for the delay today, was traveling. “Why not just make the issue the day before?” you ask. Well, by the time I was done with urgent work it was late and I wanted to sleep. Plus this way you get the piping hot, brand new content. Anyway, here’s the issue. |
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| Using @_silgen_name to call private Swift code and improve build times | Published: 14 March 2024 | Tags: swift | | Bruno Rocha explains what @_silgen_name is, how it works, and why you’d use it. | Some highlights: | “like every other underscored attribute in Swift, this is something you should avoid messing with unless you know exactly what you're doing” “akin to the old-school forward declarations in Obj-C / C, allowing it to call functions that live deeper in the Swift Runtime even though it shouldn't be able to” “this is not an official feature of the language”
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| Postgres Performance Boost: HOT Updates and Fill Factor | Published: 13 March 2024 | Tags: postgres, database, optimization | | Elizabeth Christensen dives into HOT updates, which allow you to update tables with updating all of their indices. | Some highlights: | “A HOT update occurs when a new version of a row can be stored on the same page as the original version, without the need to move the row to a new page” “By skipping the index update step, HOT updates reduce the amount of disk I/O and CPU processing required for an update operation, leading to better performance, especially for tables with large indexes or frequent updates” the system catalog can be queried to identify HOT updates
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| Differences Between ELF-32 and ELF-64 | Published: 13 March 2024 | Tags: elf, embed | | Eric Johnson describes what ELF files are and compares the 32 and 64 bit versions. | Some highlights: | “If you’re running a program on a UNIX-ish system, you’re probably using an ELF file” additional resources included on the ELF specification for further study the two formats are structurally similar, but differ in data representation and padding
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