If a file size is 1GB and is synchronized from the client to the server, the file size on the client grows to 1.2GB after a period of time, in this case, is the actual network traffic 1.2GB or 0.2GB? This is important for frequent updates and synchronization of large files.
It depends.
Assuming that you aren’t using the encrypted folder feature, it boils down to block re-use (see Understanding Synchronization — Syncthing documentation).
Unfortunately, I think the answer to your question is to test it in your environment.
Thanks for your reply. I have tested synchronization on folder aren’t using the encrypted feature. I think this mode is great, especially for large files were updated frequently.
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