nydus-image：optimize chunkdict save #1867
| Job | Run time |
|---|---|
| 3m 45s | |
| 2m 34s | |
| 3m 1s | |
| 3m 50s | |
| 5m 9s | |
| 8m 16s | |
| 4m 28s | |
| 1m 15s | |
| 10m 3s | |
| 1m 7s | |
| 1m 5s | |
| 4m 14s | |
| 45s | |
| 1m 30s | |
| 1m 23s | |
| 43s | |
| 1m 0s | |
| 3m 17s | |
| 1m 15s | |
| 25s | |
| 0s | |
| 59m 5s |
| Job | Run time |
|---|---|
| 3m 45s | |
| 2m 34s | |
| 3m 1s | |
| 3m 50s | |
| 5m 9s | |
| 8m 16s | |
| 4m 28s | |
| 1m 15s | |
| 10m 3s | |
| 1m 7s | |
| 1m 5s | |
| 4m 14s | |
| 45s | |
| 1m 30s | |
| 1m 23s | |
| 43s | |
| 1m 0s | |
| 3m 17s | |
| 1m 15s | |
| 25s | |
| 0s | |
| 59m 5s |