Add support for IndexHeadInsert for directories
#564
| Job | Run time |
|---|---|
| 25s | |
| 14m 10s | |
| 13m 5s | |
| 23s | |
| 7m 42s | |
| 7m 54s | |
| 8m 22s | |
| 8m 49s | |
| 8m 2s | |
| 8m 9s | |
| 8m 7s | |
| 8m 26s | |
| 8m 10s | |
| 7m 57s | |
| 8m 32s | |
| 8m 42s | |
| 20m 32s | |
| 21m 18s | |
| 24m 8s | |
| 23m 24s | |
| 20m 52s | |
| 21m 8s | |
| 18m 31s | |
| 19m 1s | |
| 8m 4s | |
| 8m 0s | |
| 15m 56s | |
| 19m 32s | |
| 18m 15s | |
| 15m 49s | |
| 8m 7s | |
| 8m 30s | |
| 9m 2s | |
| 9m 10s | |
| 9m 12s | |
| 9m 20s | |
| 13m 26s | |
| 13m 53s | |
| 19m 27s | |
| 21m 41s | |
| 8h 23m 13s |