[issue45330] dulwich_log performance regression in 3.10

[Inada Naoki]

Inada Naoki <songofacandy at gmail.com> added the comment:

I can not confirm performance regression between 33ec88ac and 23ae2c3b.

```
Performance version: 1.0.2
Python version: 3.10.0a7+ (64-bit) revision 33ec88ac81
Report on Linux-5.4.0-81-generic-x86_64-with-glibc2.31
Number of logical CPUs: 8
Start date: 2021-10-06 13:47:33.468553
End date: 2021-10-06 13:47:52.054876

### dulwich_log ###
Mean +- std dev: 99.7 ms +- 0.9 ms

Performance version: 1.0.2
Python version: 3.11.0a0 (64-bit) revision 23ae2c3bac
Report on Linux-5.4.0-81-generic-x86_64-with-glibc2.31
Number of logical CPUs: 8
Start date: 2021-10-06 13:47:07.767177
End date: 2021-10-06 13:47:26.175560

### dulwich_log ###
Mean +- std dev: 98.6 ms +- 0.9 ms
```

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nosy: +methane

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<https://bugs.python.org/issue45330>
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