A little while ago Wireshark introduced a really neat feature that I think many people may have missed.
When you go to Capture -> Interfaces there is a check box to the left of your interface descriptions.
As you can probably already guess, you can capture from multiple adapters simultaneously.
The good news is that your packets will now be using the same clock which makes calculating latency a lot easier.
The bad news is that you need to be aware of several things if you decide to use this feature:
- Be aware of your interface limitations. For example it is popular to use a USB to Ethernet adapter, but some of them introduce a lot of latency and drop packets.