[GitHub] [incubator-nuttx] zyfeier opened a new pull request, #6968: arch/arm: change context switch to macro

[GitBox]

zyfeier opened a new pull request, #6968:
URL: https://github.com/apache/incubator-nuttx/pull/6968

   ## Summary
   
   Add arm context switch macro to improve performance
   
   ## Impact
   
   Code Size:
   
   before:
   ```
      text         data     bss     dec     hex filename
    109708          224   24940  134872   20ed8 nuttx
   ```
   after:
   ```
      text         data     bss     dec     hex filename
    109708          224   24940  134872   20ed8 nuttx
   ```
   
   Performance:
   sem_post -> sem_wait (cycle count):
   before:
   `195`
   after:
   `190`
   
   ## Testing
   
   sabre-6quad:nsh
   


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