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Fabien Thomas f8e73c47d8 Add a SPD cache to speed up lookups. 
When large SPDs are used, we face two problems:

- too many CPU cycles are spent during the linear searches in the SPD
  for each packet
- too much contention on multi socket systems, since we use a single
  shared lock.

Main changes:

- added the sysctl tree 'net.key.spdcache' to control the SPD cache
  (disabled by default).
- cache the sp indexes that are used to perform SP lookups.
- use a range of dedicated mutexes to protect the cache lines.

Submitted by: Emeric Poupon <emeric.poupon@stormshield.eu>
Reviewed by: ae
Sponsored by:	Stormshield
Differential Revision: https://reviews.freebsd.org/D15050
2018-05-22 15:54:25 +00:00
..
boot lua-lint: Hint that try_include is now an accepted global 2018-03-26 19:08:19 +00:00
bsdbox Avoid referencing private lib names directly. 2017-11-10 07:53:02 +00:00
build Typo 2018-05-13 22:58:40 +00:00
bus_space Add an example program (in Python) for the AMD Am79c900 (ILACC) 2015-08-02 21:24:03 +00:00
debugscripts Assorted grammar, spelling and punctuation fixes. 2015-12-15 13:04:44 +00:00
diag Fix incorrect output for a file consisting of a single full-size 2018-04-19 22:43:55 +00:00
ifnet
kerneldoc Retire vxge(4). 2018-05-17 14:55:41 +00:00
KSE
LibraryReport
regression Convert tools/regression/sockets/socketpair to ATF 2018-02-10 19:43:52 +00:00
sched Add a dtrace script for collecting schedgraph data 2016-11-18 02:29:09 +00:00
test Add a test for vm86(2), simple to use and diagnose. 2018-05-12 11:53:49 +00:00
tools Add a SPD cache to speed up lookups. 2018-05-22 15:54:25 +00:00
install.sh Fix handling -U. It does not take any arguments. 2017-11-27 02:28:40 +00:00
make_libdeps.sh Improve the library dependencies helper script in src/tools. 2017-11-16 15:26:39 +00:00
README
tinder.sh Remove the old depend (mkdep) code and make FAST_DEPEND the one true way. 2016-03-30 23:50:23 +00:00

README 

$FreeBSD$

This directory tree contains tools used for the maintenance and
testing of FreeBSD.  There is no toplevel Makefile structure since
these tools are not meant to be built as part of the standard system,
though there may be individual Makefiles in some of the subdirs.

Please read the README files in the subdirs for further information.