ViggoC opened a new issue, #44642:
URL: https://github.com/apache/arrow/issues/44642
### Describe the enhancement requested
The performance of VariableWidthViewVector is much slower than
VariableWidthVector in some cases. `setZero` for overwriting is the bottleneck.
```
VariableWidthViewVectorBenchmarks.setSafeFromArray 1 avgt 5 0.088
± 0.002 ms/op
VariableWidthViewVectorBenchmarks.setSafeFromArray 2 avgt 5 0.095
± 0.020 ms/op
VariableWidthViewVectorBenchmarks.setSafeFromArray 10 avgt 5 0.091
± 0.012 ms/op
VariableWidthViewVectorBenchmarks.setSafeFromArray 40 avgt 5 0.087
± 0.001 ms/op
VariableWidthVectorBenchmarks.setSafeFromArray 1 avgt 5 0.010
± 0.001 ms/op
VariableWidthVectorBenchmarks.setSafeFromArray 2 avgt 5 0.013
± 0.001 ms/op
VariableWidthVectorBenchmarks.setSafeFromArray 10 avgt 5 0.032
± 0.001 ms/op
VariableWidthVectorBenchmarks.setSafeFromArray 40 avgt 5 0.105
± 0.002 ms/op
```
See code of benchmark in https://github.com/apache/arrow/pull/44634.
### Component(s)
Java
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