什麼是「Code Path」

在C語言的書籍中一直看到「Code Path」這個詞,不知道這與Process有何不同,到底定義是什麼
Update: 例如:
Here are some things that will kill your RT performance:

* get multiple TLB flushes on your RT code path (how to cause this??)
* get lots of instruction and data cache misses on your RT code path
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