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AVX-512 xor_gen For Linux Updated & Looking Real Good For RAID Arrays

Being worked on the past few months for the Linux kernel has been an AVX-512 optimized version of xor_gen() that is used for generating and validating parity blocks such as with Linux's software RAID 5 and RAID 6 arrays. The latest iteration of AVX-512 xor_gen() was posted today and shows some impressive results on AMD Zen 5 hardware...

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 →

More in Tech

The Last Time I Googled an Error Message

I don't remember the last time I pasted an error into Google. Not the date. I mean the habit left and I didn't notice it go. Something I did five times a day just stopped. Here's the whole six years.

  • Habit of Googling error messages vanished around 2022
  • ChatGPT provided accurate responses in seconds by 2023
  • AI code assistants like Gemini 3 and Claude Code dominate in 2025

A Note from LWN

Article URL: https://lwn.net/Articles/1090585/ Comments URL: https://news.ycombinator.com/item?id=49535752 Points: 233 # Comments: 38

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