5e040d4b1a
We already scored points when handling the RX event, no-one else does this, and looking at the history it appears this was originally meant to only score on merges, not on GRO_NORMAL. Moreover, it gets in the way of changing GRO to not immediately pass GRO_NORMAL skbs to the stack. Performance testing with four TCP streams received on a single CPU (where throughput was line rate of 9.4Gbps in all tests) showed a 13.7% reduction in RX CPU usage (n=6, p=0.03). Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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.