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LLVM Merges Support For AMD's RMPCHKD, RMPREAD & RMPOPT Instructions

With the Linux kernel still working toward landing support for AMD's RMPOPT optimization for helping to reduce overhead on SEV-SNP enabled servers, the LLVM/Clang compiler has in turn prepped for the milestone by landing support for the RMPOPT, RMPREAD, and RMPCHKD instructions for Zen 5 and newer...

We haven't written up this one. Phoronix has the full story — the link below goes straight to it.

Read the original at phoronix.com →

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SQL Joins: Understanding How to combine Data from Multiple Tables

When you're diving into databases, you'll quickly notice that data isn't usually crammed into a single table. Take an e-commerce site, for instance, you'd typically find one table for customers…

  • SQL joins combine data from multiple tables into a unified view.
  • INNER JOIN returns only matching records from both tables.
  • LEFT JOIN includes all records from the left table, regardless of matches.

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