Solutions to this problem require additional system calls in which the UTS explicitly asks the kernel to preempt KSEs. This is expensive.

 
  • 解決這個(gè)問(wèn)題,UTS為了搶先KSE,需要額外的系統調用去查詢(xún)內核得到準確的KSE優(yōu)先級。這樣的開(kāi)銷(xiāo)很大。
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