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aedfbe251e
Paolo Abeni says: ==================== udp_tunnel: GRO optimizations The UDP tunnel GRO stage is source of measurable overhead for workload based on UDP-encapsulated traffic: each incoming packets requires a full UDP socket lookup and an indirect call. In the most common setups a single UDP tunnel device is used. In such case we can optimize both the lookup and the indirect call. Patch 1 tracks per netns the active UDP tunnels and replaces the socket lookup with a single destination port comparison when possible. Patch 2 tracks the different types of UDP tunnels and replaces the indirect call with a static one when there is a single UDP tunnel type active. I measure ~5% performance improvement in TCP over UDP tunnel stream tests on top of this series. v3: https://lore.kernel.org/netdev/cover.1741632298.git.pabeni@redhat.com/ v2: https://lore.kernel.org/netdev/cover.1741338765.git.pabeni@redhat.com/ v1: https://lore.kernel.org/netdev/cover.1741275846.git.pabeni@redhat.com/ ==================== Link: https://patch.msgid.link/cover.1741718157.git.pabeni@redhat.com Signed-off-by: Paolo Abeni <pabeni@redhat.com> |
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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 reStructuredText 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.