provide an option to set the *_files/ directory suffix (#2550)
#902
| Job | Run time |
|---|---|
| 11m 15s | |
| 6m 24s | |
| 3m 29s | |
| 3m 8s | |
| 4m 3s | |
| 2m 21s | |
| 3m 6s | |
| 3m 17s | |
| 2m 45s | |
| 2m 55s | |
| 2m 25s | |
| 3m 12s | |
| 12m 59s | |
| 5m 14s | |
| 4m 33s | |
| 4m 51s | |
| 1h 15m 57s |