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| Filename | Latest commit message | Latest commit date |
|---|---|---|
2db6dc2662
This patch restores cake's deployed behavior at line rate to always
split gso, and makes gso splitting configurable from userspace.
running cake unlimited (unshaped) at 1gigE, local traffic:
no-split-gso bql limit: 131966
split-gso bql limit: ~42392-45420
On this 4 stream test splitting gso apart results in halving the
observed interpacket latency at no loss in throughput.
Summary of tcp_nup test run 'gso-split' (at 2018-07-26 16:03:51.824728):
Ping (ms) ICMP : 0.83 0.81 ms 341
TCP upload avg : 235.43 235.39 Mbits/s 301
TCP upload sum : 941.71 941.56 Mbits/s 301
TCP upload::1 : 235.45 235.43 Mbits/s 271
TCP upload::2 : 235.45 235.41 Mbits/s 289
TCP upload::3 : 235.40 235.40 Mbits/s 288
TCP upload::4 : 235.41 235.40 Mbits/s 291
verses
Summary of tcp_nup test run 'no-split-gso' (at 2018-07-26 16:37:23.563960):
avg median # data pts
Ping (ms) ICMP : 1.67 1.73 ms 348
TCP upload avg : 234.56 235.37 Mbits/s 301
TCP upload sum : 938.24 941.49 Mbits/s 301
TCP upload::1 : 234.55 235.38 Mbits/s 285
TCP upload::2 : 234.57 235.37 Mbits/s 286
TCP upload::3 : 234.58 235.37 Mbits/s 274
TCP upload::4 : 234.54 235.42 Mbits/s 288
Signed-off-by: David S. Miller <davem@davemloft.net>
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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.
See Documentation/00-INDEX for a list of what is contained in each file.
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.