xiaoxiang781216 commented on PR #12968:
URL: https://github.com/apache/nuttx/pull/12968#issuecomment-2301603538

   > What's the flash usage and ram usage impact? Lots of MCU's use an MPU only 
on startup, I see there are usecases for making it dynamic. But I really would 
like to know the cost of it.
   
   @PetervdPerk-NXP the impact is minor:
   delta
   ```
      text    data     bss     dec     hex filename
      60      -4         0        56       38   nuttx
   ```
   The new api is required to protect userspace task in protected build.


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