[GitHub] [arrow] pitrou commented on pull request #34323: GH-34322: [C++][Parquet] Encoding Microbench for ByteArray

[via GitHub]

pitrou commented on PR #34323:
URL: https://github.com/apache/arrow/pull/34323#issuecomment-1448373912

   I get the figures below. Is it expected?
   ```
   BM_DeltaLengthDecodingByteArray/max-string-length:8/batch-size:512           
     41664 ns        41656 ns        16802 bytes_per_second=46.7035M/s 
items_per_second=12.2911M/s
   BM_DeltaLengthDecodingByteArray/max-string-length:64/batch-size:512          
    240049 ns       239998 ns         2917 bytes_per_second=65.2239M/s 
items_per_second=2.13335M/s
   BM_DeltaLengthDecodingByteArray/max-string-length:1024/batch-size:512        
   3630825 ns      3630178 ns          193 bytes_per_second=68.947M/s 
items_per_second=141.04k/s
   BM_DeltaLengthDecodingByteArray/max-string-length:8/batch-size:2048          
    151227 ns       151203 ns         4778 bytes_per_second=51.36M/s 
items_per_second=13.5447M/s
   BM_DeltaLengthDecodingByteArray/max-string-length:64/batch-size:2048         
    935939 ns       935761 ns          744 bytes_per_second=66.5704M/s 
items_per_second=2.18859M/s
   BM_DeltaLengthDecodingByteArray/max-string-length:1024/batch-size:2048       
  14463162 ns     14461140 ns           48 bytes_per_second=68.9333M/s 
items_per_second=141.621k/s
   ```


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