![]() Since the connection is dedicated, and their trunk is sized about 3x more than peak bandwidth, it's normally not an issue. My max latency to my ISP before loss starts to occur is about 10ms. The reason loss occurs after the clamping is because my ISP uses small buffers. Once the Cisco router clamps down on the connection, I'm already uploading nearly 100mb/s and TCP can't back off in time before loss happens. Because my network latency is so low, the TCP stream can ramp up really fast. The way Cisco is calculating the mb/s seems to be via some sliding window, which allows a quick spike of a burst to happen in the first 1/4 of a second, but then clamps down. Why is my connection only doing 10mb/s with DropBox and getting packet-loss, while I can use BitTorrent at 45/45 up & down at the same time and not have loss or latency? DropBox seems to have the bandwidth, but the quick bursts are wrecking havoc with my ISP's traffic shaping via their Cisco router. I have a 50/50 dedicated fiber connection with a rock solid 0.35ms ping to my ISP and a solid 8ms ping to drop box servers. To correct for this, we needed a new file that wasn’t bit-for-bit identical to the video file we previously transferred. "Dropbox has a deduplication scheme in place – what this meant for our tests is that even though we deleted the video file from our Dropbox folder, traces of it still remained and Dropbox got ~50% faster at transferring the same video file each subsequent time we uploaded it. Again, quoted verbatum from the blog post: ![]() Not only did they give themselves the preferential treatment of same LAN, they also intentionally adjusted their tests to discount an advantage of a competitor. In other words, people agreed with me because they knew what I said to be true. We’re confident that a slower Internet connection would yield similar results." It’s important here to note that Dropbox, Google Drive and Microsoft OneDrive all rate-limit uploads and do not fully utilize the 1 Gbps bandwidth available (in regards to the office Internet connection, not the LAN switched). "Our tests were conducted over local LAN – on the same switch – in order to rule out available bandwidth as a limiting factor. The use of P2P ensures optimum speed for synchronization and data protection is extremely high with a 256-bit algorithm.Īrchive capability for retrieving previous versions of synced files.Option to exclude specific files/directoriesSupport for additional types of NAS devicesBug fixes ChangesĪrchive capability for retrieving previous versions of synced files.Maybe because 3-4 people actually read the Sync blog post where it states, and I quote: An app with great potentialīitTorrent Sync is an app with great potential. In addition, the use of P2P ensures that you can store and share potentially unlimited amounts of data and during our tests we were impressed by the performance and speed of synchronization of the app. These are the main differences between BitTorrent Sync and online storage services such as Dropbox or SkyDrive. You can see more in our video: Very fast P2P file transfersīitTorrent Sync does not rely on an external server and offers no public file sharing capabilities. Using the program is easy, but there are hundreds of other more advanced features too long to list here. You can choose to be notified at the end of a download, whether to set a bandwidth limit for uploading and downloading files and you can choose to run the app automatically when your computer starts. The interface of BitTorrent Sync is organized in tabs:ĭevices shows the computers with which you are synchronized Shared Folders shows the folders you have shared plus transfers in real time synchronizations, download and upload in progress History shows you a history of all transfers Preferences allows you to set BitTorrent Sync according to your needs. Data security is ensured by an algorithm instead of 256-bit encryption. There are 3 types of secret keys to be used according to your needs: keys with read and write access keys with read-only access and disposable keys to be used within 24 hours (read-only or read/write).Syncing occurs through a direct P2P connection, which ensures a very high transfer rate.
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