02bc3865aa
When ktls_bind_thread is 2, we pick a ktls worker thread that is bound to the same domain as the TCP connection associated with the socket. We use roughly the same code as netinet/tcp_hpts.c to do this. This allows crypto to run on the same domain as the TCP connection is associated with. Assuming TCP_REUSPORT_LB_NUMA (D21636) is in place & in use, this ensures that the crypto source and destination buffers are local to the same NUMA domain as we're running crypto on. This change (when TCP_REUSPORT_LB_NUMA, D21636, is used) reduces cross-domain traffic from over 37% down to about 13% as measured by pcm.x on a dual-socket Xeon using nginx and a Netflix workload. Reviewed by: jhb Sponsored by: Netflix Differential Revision: https://reviews.freebsd.org/D21648
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FreeBSD
FreeBSD is an operating system used to power modern servers, desktops, and embedded platforms. A large community has continually developed it for more than thirty years. Its advanced networking, security, and storage features have made FreeBSD the platform of choice for many of the busiest web sites and most pervasive embedded networking and storage devices.
For copyright information, please see the file COPYRIGHT in this directory. Additional copyright information also exists for some sources in this tree - please see the specific source directories for more information.
The Makefile in this directory supports a number of targets for building components (or all) of the FreeBSD source tree. See build(7), config(8), https://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/makeworld.html, and https://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig.html for more information, including setting make(1) variables.
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bin System/user commands.
cddl Various commands and libraries under the Common Development
and Distribution License.
contrib Packages contributed by 3rd parties.
crypto Cryptography stuff (see crypto/README).
etc Template files for /etc.
gnu Various commands and libraries under the GNU Public License.
Please see gnu/COPYING* for more information.
include System include files.
kerberos5 Kerberos5 (Heimdal) package.
lib System libraries.
libexec System daemons.
release Release building Makefile & associated tools.
rescue Build system for statically linked /rescue utilities.
sbin System commands.
secure Cryptographic libraries and commands.
share Shared resources.
stand Boot loader sources.
sys Kernel sources.
sys/<arch>/conf Kernel configuration files. GENERIC is the configuration
used in release builds. NOTES contains documentation of
all possible entries.
tests Regression tests which can be run by Kyua. See tests/README
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tools Utilities for regression testing and miscellaneous tasks.
usr.bin User commands.
usr.sbin System administration commands.
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