A VLAN is also an interface, so you could use the same physical interface but have one VLAN at 1500 and another VLAN at 9000 on the same physical port. Unless you can guarantee all devices are 9000 on the segment (and some devices need larger if they don't include header/trailer but documented by the switch or nic vendor for that).
At 10G Jumbo would be nice to have but might not be worth the hassle...for 1G I don't recommend it anymore since we didn't see a big return on it...but for 10G it can be a good boost depending on what you are doing...but if small random I/O it might be diminishing returns.
If you can create a temporary VLAN and run it jumbo then do some testing compared to 1500 you can see or use SIO or iometer to simulate the workload.