Begin typing your search term above and press enter to search. Press ESC to cancel. Skip to content Home How do I upload to Dropbox? Ben Davis May 31, How do I upload to Dropbox? How do I upload files from my computer to Dropbox? How do I use Dropbox? Why is my Dropbox syncing so slowly? Why is my Dropbox not updating? Why does Dropbox keep stopping? What happens if I quit Dropbox? What happens if I uninstall Dropbox from my computer?
How do I refresh Dropbox files? Dropbox file size limits and how to upload large files. Files uploaded to dropbox. How helpful was this article? Let us know how we can improve: Thanks for your feedback! Let us know how this article helped: Submit Thanks for your feedback! Regardless of how old we are, we never stop learning. Classroom is the educational resource for people of all ages. Based on the Word Net lexical database for the English Language. See disclaimer. How Long Does Dropbox Take?
About the Author A published author and professional speaker, David Weedmark has advised businesses and governments on technology, media and marketing for more than 20 years. Related Articles. It turns out that this is a known issue discussed in academic research papers see Appendix A below. In this example, flow-director-atr is specific to Intel i40e NICs. On the client side, the Windows platform overall upload speed immediately went up proportionally:.
This is the Week-over-Week ratio for average per-chunk upload speeds. Linux upload speeds here are not representative. This concluded recently with the Windows 10 build This heuristic upgrades TCP to be resilient to up to a round-trip-time worth of packet reordering in the network.
In theory, one can see that the rationale for the reordering heuristic covers our Flow-Director side-effect. One of the Microsoft team explained:. It can only distinguish between the two in hindsight if the missing sequence ranges are filled in later without retransmission. Thus, a loss detection algorithm needs to budget some wait time -- a reordering window -- to try to disambiguate packet reordering from packet loss. In practice, we reran our tests with the newest available Windows 10 build Even though this specific issue was very deep in our infrastructure network stack, troubleshooting it required work from multiple teams from both Dropbox and Microsoft sides:.
It goes deeper into the theory behind these TCP features and provides benchmarks for TCP performance under different conditions.
We were not the first to stumble upon this problem. Balancing performance with resource consumption across heterogeneous hardware and different use-cases is quite tricky: If we push compression too much, we starve upload threads on 10G servers. But if we pull it another way we waste bandwidth on slow internet connections. If we improve the performance of hashing code, it can cause high iowait on spinning disks. How we spotted the problem.
API Monitor for Windows.
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