Reranko05 commented on PR #49748:
URL: https://github.com/apache/arrow/pull/49748#issuecomment-4266057864

   Hi @kou, I ran a quick benchmark comparing the previous implementation and 
this change.
   
   Results (200 iterations):
   
   Small (~100B):
   - Before: ~0 ms
   - After:  ~0 ms
   
   Medium (~10KB):
   - Before: 58 ms
   - After:  12 ms
   
   Large (~1MB):
   - Before: 4302 ms
   - After:  1126 ms
   
   The improvement is negligible for very small inputs but becomes significant 
as input size grows. This aligns with expectations, since the change replaces 
repeated linear `std::string::find` lookups with constant-time table access per 
character.


-- 
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.

To unsubscribe, e-mail: [email protected]

For queries about this service, please contact Infrastructure at:
[email protected]

Reply via email to