GWphua commented on PR #18477:
URL: https://github.com/apache/druid/pull/18477#issuecomment-3253036874

   Hi @kfaraz 
   
   Since the benchmark samples involving period show a similar result now, I 
have replaced the benchmark with new fallback samples, all of which uses 
non-period in start/end (e.g. without millis specified)
   
   When calling deserialization with the optimized method, we should try our 
best to not use intervals of this format, else risking the below performance:
   
   1. `"2022-01-01T00:00:00Z/2022-01-02T00:00:00Z"`
   2. `"2022-01-01/2022-01-02"`
   
   Benchmark results are as shown:
   ```
   Benchmark                                                          
(numValues)  Mode  Cnt   Score   Error  Units
   JodaIntervalDeserializationBenchmark.deserializeLegacyFallback           
20000  avgt       19.085          ms/op
   JodaIntervalDeserializationBenchmark.deserializeOptimizedFallback        
20000  avgt       33.561          ms/op
   ```


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