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Priyaranjan Jha says: ==================== tcp_bbr: Improving TCP BBR performance for WiFi and cellular networks Ack aggregation is quite prevalent with wifi, cellular and cable modem link tchnologies, ACK decimation in middleboxes, and common offloading techniques such as TSO and GRO, at end hosts. Previously, BBR was often cwnd-limited in the presence of severe ACK aggregation, which resulted in low throughput due to insufficient data in flight. To achieve good throughput for wifi and other paths with aggregation, this patch series implements an ACK aggregation estimator for BBR, which estimates the maximum recent degree of ACK aggregation and adapts cwnd based on it. The algorithm is further described by the following presentation: https://datatracker.ietf.org/meeting/101/materials/slides-101-iccrg-an-update-on-bbr-work-at-google-00 (1) A preparatory patch, which refactors bbr_target_cwnd for generic inflight provisioning. (2) Implements BBR ack aggregation estimator and adapts cwnd based on measured degree of ACK aggregation. ==================== Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net> |
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| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
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| README | ||
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.