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  • Why does the western world care about Chinese CPUs, let them play in their sandbox with their own systems
  • Wang Miao? Is this the fault of sophons?
  • > The fix is to set bit 13 of MCSR24 to 1. MCSR24 is an internal CSR whose function is not described in the manual. After setting this bit, the lost update no longer occurs. Testing showed the performance loss is very small: single-core performance is unaffected, and multi-core performance drops only slightly.

    Presumably this is a so-called “chicken bit”.

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The Lost Atomic Update on Loongson CPU · Birbla