Allow ThreadPool to run jobs in both modes, and improve scheduling
#1412
| Job | Run time |
|---|---|
| 42s | |
| 36s | |
| 26m 9s | |
| 3m 3s | |
| 1m 21s | |
| 3m 3s | |
| 17m 13s | |
| 3m 4s | |
| 14m 59s | |
| 3m 2s | |
| 15m 15s | |
| 15m 51s | |
| 2m 25s | |
| 1m 52s | |
| 42s | |
| 1m 37s | |
| 42s | |
| 16s | |
| 2m 8s | |
| 18s | |
| 49s | |
| 47s | |
| 41s | |
| 30s | |
| 45s | |
| 0s | |
| 1h 57m 50s |