redis reboots faster with "appendonly.aof" instead of "dump.rdb"

[Gajendra Kumar]

I am doing a performance testing and trying to figure out how redis reboots with aof and rdb files. I collected following data:

with 4gb RAM

Size of aof file = 588 mb

Size of rdb dile = 7 mb

used_memory_human:616.97M

rebooting with rdb file = 1.299 seconds seconds

rebooting with aof file =  0.396 seconds

with 16GB RAM

Size of aof file = 4128 mb

Size of rdb dile = 48 mb

Total memory used =  used_memory_human:4.06G

rebooting with rdb file = 8.353 seconds

rebooting with aof file =  2.245 seconds

the redis version that I am using is : 3.2.11

The documentation says that redis reboots faster with rdb. But I am observing a faster reboot with aof. Could someone please help me understand this redis behavior?