ritchie46 commented on pull request #348:
URL: https://github.com/apache/arrow-rs/pull/348#issuecomment-848502242
> @ritchie46 do we have some (micro) benchmark results, like:
```
Gnuplot not found, using plotters backend
concat str 10k time: [162.54 us 162.73 us 163.00 us]
change: [-3.7750% -3.6483% -3.5084%] (p = 0.00 <
0.05)
Performance has improved.
Found 2 outliers among 100 measurements (2.00%)
1 (1.00%) high mild
1 (1.00%) high severe
concat str 50% nulls 10k
time: [619.71 us 621.16 us 623.28 us]
change: [-1.1095% -0.9350% -0.7141%] (p = 0.00 <
0.05)
Change within noise threshold.
Found 10 outliers among 100 measurements (10.00%)
1 (1.00%) low mild
2 (2.00%) high mild
7 (7.00%) high severe
concat str 5% nulls 10k time: [391.61 us 391.71 us 391.81 us]
change: [-1.3337% -1.2446% -1.1878%] (p = 0.00 <
0.05)
Performance has improved.
Found 9 outliers among 100 measurements (9.00%)
6 (6.00%) high mild
3 (3.00%) high severe
```
Performance wise it doesn't matter/ or hurt that much. So it mostly is more
memory efficient.
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