Time to walk linux's source tree on iMac (Retina 5K, 27-inch, Late 2015):
| threads | jwalk | ignore | walkdir | |
|---|---|---|---|---|
| unsorted | 8 | 54.631 ms | 70.848 ms | - |
| sorted | 8 | 56.133 ms | 93.345 ms | - |
| sorted, metadata | 8 | 86.985 ms | 122.08 ms | - |
| sorted, first 100 | 8 | 8.9931 ms | - | - |
| unsorted | 2 | 88.416 ms | 108.97 ms | - |
| unsorted | 1 | 141.66 ms | - | 134.28 ms |
| sorted | 1 | 150.89 ms | - | 170.24 ms |
| sorted, metadata | 1 | 313.91 ms | - | 310.26 ms |
Comparing the performance of jwalk, ignore, and walkdir and how well they
can use multiple threads.
Options:
- "unsorted" means entries are returned in
read_dirorder. - "sorted" means entries are returned sorted by name.
- "metadata" means filesystem metadata is loaded for each entry.
- "first 100" means only first 100 entries are taken.