9700d88b1a
Recalculating outstanding bytes is expensive when the congestion window is large, as it iterates over all inflight data chunks. By doing it incrementally, it will be a constant operation in most cases, and in the remaining cases, a function of the number of chunks acked in a single SACK, which is typically just a few chunks. Implementing this fix required some refactoring to calculate it correctly (and to be honest, it was likely done incorrectly previously). Previously, the state of an item in the retransmission queue was simplified as "in flight", "acked", "nacked", "abandoned", but these were not completely orthogonal. A chunk could be abandoned while it was in-flight or it could be abandoned because it was lost. The difference between these if that chunk should be accounted for in outstanding_bytes() or not. Unit tests have been added to verify this. Bug: webrtc:12799 Change-Id: I72341538bb0c4f8f89555b08f0c8a28815f0f828 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/219623 Reviewed-by: Harald Alvestrand <hta@webrtc.org> Commit-Queue: Victor Boivie <boivie@webrtc.org> Cr-Commit-Position: refs/heads/master@{#34139}
WebRTC is a free, open software project that provides browsers and mobile applications with Real-Time Communications (RTC) capabilities via simple APIs. The WebRTC components have been optimized to best serve this purpose.
Our mission: To enable rich, high-quality RTC applications to be developed for the browser, mobile platforms, and IoT devices, and allow them all to communicate via a common set of protocols.
The WebRTC initiative is a project supported by Google, Mozilla and Opera, amongst others.
Development
See here for instructions on how to get started developing with the native code.
Authoritative list of directories that contain the native API header files.
More info
- Official web site: http://www.webrtc.org
- Master source code repo: https://webrtc.googlesource.com/src
- Samples and reference apps: https://github.com/webrtc
- Mailing list: http://groups.google.com/group/discuss-webrtc
- Continuous build: https://ci.chromium.org/p/webrtc/g/ci/console
- Coding style guide
- Code of conduct
- Reporting bugs