uv/crates/puffin-distribution
Charlie Marsh cedd2e0b3f
Use a buffered reader for wheel metadata (#1082)
## Summary

It turns out this is significantly faster when reading (e.g.) _just_ the
`METADATA` file from a zipped wheel.

I audited other `File::open` usages, and everything else seems to be
using a buffered reader already (directly, or in whatever third-party
crate it's passed to) _or_ is read immediately in full.

See the criterion benchmark:

```
file_reader/numpy-1.26.3-pp39-pypy39_pp73-manylinux_2_17_x86_64.manylinux2014_x86_64.whl
                        time:   [6.9618 ms 6.9664 ms 6.9713 ms]
Found 4 outliers among 100 measurements (4.00%)
  4 (4.00%) high mild
file_reader/flask-3.0.1-py3-none-any.whl
                        time:   [237.50 µs 238.25 µs 239.13 µs]
Found 7 outliers among 100 measurements (7.00%)
  3 (3.00%) high mild
  4 (4.00%) high severe

buffered_reader/numpy-1.26.3-pp39-pypy39_pp73-manylinux_2_17_x86_64.manylinux2014_x86_64.whl
                        time:   [648.92 µs 653.85 µs 660.09 µs]
Found 4 outliers among 100 measurements (4.00%)
  3 (3.00%) high mild
  1 (1.00%) high severe
buffered_reader/flask-3.0.1-py3-none-any.whl
                        time:   [39.578 µs 39.712 µs 39.869 µs]
Found 8 outliers among 100 measurements (8.00%)
  3 (3.00%) high mild
  5 (5.00%) high severe
```
2024-01-24 15:22:55 -05:00
..
src Use a buffered reader for wheel metadata (#1082) 2024-01-24 15:22:55 -05:00
Cargo.toml Remove some unused dependencies (#1077) 2024-01-24 11:58:21 -05:00