Dropbox Deduplication test

Follow @sukeesh

It works by breaking files into blocks. Each of these blocks is hashed. Only blocks that are not yet known are uploaded to the server when syncing.

Check : Dropbox blog

Test

I used this video for testing which is 21.8 MB in size. The freshly downloaded file took 27 seconds ( approx ) to sync. Then, I renamed the file. This duplicate file took 4 seconds( approx )!

Video

some random