Linux kernel for uConsole
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Jesper Dangaard Brouer says: ==================== This patchset utilize a number of different kernel bulk APIs for optimizing the performance for the XDP cpumap redirect feature. Benchmark details are available here: https://github.com/xdp-project/xdp-project/blob/master/areas/cpumap/cpumap03-optimizations.org Performance measurements can be considered micro benchmarks, as they measure dropping packets at different stages in the network stack. Summary based on above: Baseline benchmarks - baseline-redirect: UdpNoPorts: 3,180,074 - baseline-redirect: iptables-raw drop: 6,193,534 Patch1: bpf: cpumap use ptr_ring_consume_batched - redirect: UdpNoPorts: 3,327,729 - redirect: iptables-raw drop: 6,321,540 Patch2: net: core: introduce build_skb_around - redirect: UdpNoPorts: 3,221,303 - redirect: iptables-raw drop: 6,320,066 Patch3: bpf: cpumap do bulk allocation of SKBs - redirect: UdpNoPorts: 3,290,563 - redirect: iptables-raw drop: 6,650,112 Patch4: bpf: cpumap memory prefetchw optimizations for struct page - redirect: UdpNoPorts: 3,520,250 - redirect: iptables-raw drop: 7,649,604 In this V2 submission I have chosen drop the SKB-list patch using netif_receive_skb_list() as it was not showing a performance improvement for these micro benchmarks. ==================== Signed-off-by: Alexei Starovoitov <ast@kernel.org> |
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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 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.