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BrikoX@lemmy.zip to Linux.zip@lemmy.zipEnglish · 2 years ago

The Linux kernel has been accidentally hardcoded to a maximum of 8 cores for the past 15 years and nobody noticed

thehftguy.com

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The Linux kernel has been accidentally hardcoded to a maximum of 8 cores for the past 15 years and nobody noticed

thehftguy.com

BrikoX@lemmy.zip to Linux.zip@lemmy.zipEnglish · 2 years ago
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3
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  • cross-posted to:
  • hackernews@lemmy.smeargle.fans
  • linux@lemmy.ml
  • hackernews@derp.foo
The Linux kernel scheduler has been accidentally hardcoded to a maximum of 8 cores for the past 15 years and nobody noticed
thehftguy.com
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TL;DR This doesn’t mean that the scheduler can’t use more than 8 cores. The scheduler controls how to allocate tasks to available cores. How to schedule particular workloads efficiently…
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  • OsrsNeedsF2P@lemmy.ml
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    2 years ago

    From HN:

    This article is clickbait and in no way has the kernel been hardcoded to a maximum of 8 cores. If you read the commit [0], you can see, that a /certain/ scaling factor for scheduling can scale linearly or logarithmically with the number of cores and for calculating this scaling factor, the number is capped to 8. This has nothing to do with the number of cores that can actually be used.

    [0] https://github.com/torvalds/linux/commit/acb4a848da821a095ae9e4d8b22ae2d9633ba5cd

    • BrikoX@lemmy.zipOP
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      2 years ago

      Thank you for clarification. I just use RSS feed from HN not the actual site, so I don’t see the comments.

  • blakeus12 [he/him]@hexbear.net
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    2 years ago

    thankfully, i can’t afford anything over an 8 core CPU

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