[GitHub] [incubator-nuttx] v01d opened a new issue #3421: IMPROVED ARM INTERRUPT HANDLING

[GitBox <gi...@apache.org>]

v01d opened a new issue #3421:
URL: https://github.com/apache/incubator-nuttx/issues/3421


   ```
     Description: ARM interrupt handling performance could be improved in some
                  ways. One easy way is to use a pointer to the context save
                  area in g_current_regs instead of using up_copystate so much.
   
                  This approach is already implemented for the ARM Cortex-M0,
                  Cortex-M3, Cortex-M4, and Cortex-A5 families.  But still needs
                  to be back-ported to the ARM7 and ARM9 (which are nearly
                  identical to the Cortex-A5 in this regard).  The change is
                  *very* simple for this architecture, but not implemented.
     Status:      Open.  But complete on all ARM platforms except ARM7 and ARM9.
     Priority:    Low.
   ```


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