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97d8d152c2
freebsd-dev/sys/conf
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Andre Oppermann 97d8d152c2 Introduce tcp_hostcache and remove the tcp specific metrics from 
the routing table.  Move all usage and references in the tcp stack
from the routing table metrics to the tcp hostcache.

It caches measured parameters of past tcp sessions to provide better
initial start values for following connections from or to the same
source or destination.  Depending on the network parameters to/from
the remote host this can lead to significant speedups for new tcp
connections after the first one because they inherit and shortcut
the learning curve.

tcp_hostcache is designed for multiple concurrent access in SMP
environments with high contention and is hash indexed by remote
ip address.

It removes significant locking requirements from the tcp stack with
regard to the routing table.

Reviewed by:	sam (mentor), bms
Reviewed by:	-net, -current, core@kame.net (IPv6 parts)
Approved by:	re (scottl)
2003-11-20 20:07:39 +00:00
..
defines
files Introduce tcp_hostcache and remove the tcp specific metrics from 2003-11-20 20:07:39 +00:00
files.alpha Hook-up the uart(4) driver to the build. For a detailed description 2003-09-06 23:23:26 +00:00
files.amd64 Initial landing of SMP support for FreeBSD/amd64. 2003-11-17 08:58:16 +00:00
files.i386 - Remove references to old interrupt and SMP code. 2003-11-03 22:46:43 +00:00
files.ia64 Remove unused file. db_disasm() has been implemented in db_interface.c 2003-10-24 06:48:41 +00:00
files.pc98 MFi386: revision 1.456 2003-11-04 13:11:58 +00:00
files.powerpc Hook grackle system controller/heathrow interrupt controller to PPC build. 2003-06-28 08:53:49 +00:00
files.sparc64 Copy ukbdmap.h rules from .i386. 2003-11-17 04:38:14 +00:00
kern.mk Move the inline limit default variable to a per-arch place. For example, 2003-11-04 23:29:17 +00:00
kern.post.mk Moved $FreeBSD$ to the beginning of the file. 2003-11-14 23:09:38 +00:00
kern.pre.mk Moved $FreeBSD$ to the beginning of the file. 2003-11-05 12:20:16 +00:00
kmod_syms.awk Our awk does not implement the ARGIND variable, so we were attempting 2002-08-06 19:31:04 +00:00
kmod.mk o Remove @- from the ln and change it to a -sf. This was bogus, and 2003-11-19 05:08:27 +00:00
ldscript.alpha Use the new freebsd output format from Binutils 2.13.1. 2002-10-11 19:38:04 +00:00
ldscript.amd64 Sync up with the files in the hammer branch in the p4 tree to get basic 2003-05-01 02:59:24 +00:00
ldscript.i386 Commit Bosko's patch to clean up the PSE/PG_G initialization to and 2003-10-01 23:46:08 +00:00
ldscript.ia64 Load the kernel at a 64M instead of 5M. The advantage of this is that 2003-09-06 05:15:36 +00:00
ldscript.powerpc Page align the data segment. 2001-10-08 10:43:34 +00:00
ldscript.sparc64 Use the same SEARCH_DIR as other platforms. 2003-06-07 18:23:50 +00:00
majors Free major#100 2003-11-03 10:19:33 +00:00
majors.awk Add necessary awk magic to create a table of major numbers allocated 2003-02-27 08:52:11 +00:00
Makefile.alpha Bump the config version to force people to upgrade their config(8) 2003-04-15 21:29:11 +00:00
Makefile.amd64 Stop this warning: 2003-09-30 03:49:09 +00:00
Makefile.i386 Bump the config version to force people to upgrade their config(8) 2003-04-15 21:29:11 +00:00
Makefile.ia64 Revamp of the syscall path, exception and context handling. The 2003-05-16 21:26:42 +00:00
Makefile.pc98 Bump the config version to force people to upgrade their config(8) 2003-04-15 21:29:11 +00:00
Makefile.powerpc Bump the config version to force people to upgrade their config(8) 2003-04-15 21:29:11 +00:00
Makefile.sparc64 Bump the config version to force people to upgrade their config(8) 2003-04-15 21:29:11 +00:00
makeLINT.mk Implemented "nooption" and "nomakeoption" config(8) tokens. 2003-02-26 23:36:59 +00:00
makeLINT.sed Implemented "nooption" and "nomakeoption" config(8) tokens. 2003-02-26 23:36:59 +00:00
newvers.sh ARGH. I *knew* I'd eventually accidently commit this. Change 5.1-XP back 2003-07-23 20:07:49 +00:00
NOTES Make interrupt pipe interval time configurable. 2003-11-16 12:26:10 +00:00
options Make interrupt pipe interval time configurable. 2003-11-16 12:26:10 +00:00
options.alpha Add option NO_SIO to work-around the hardcoded dependency on sio(4). 2003-08-25 03:43:08 +00:00
options.amd64 Initial landing of SMP support for FreeBSD/amd64. 2003-11-17 08:58:16 +00:00
options.i386 Disable probing of HTT CPUs by default for the MP Table case. HTT CPUs 2003-11-11 17:14:26 +00:00
options.ia64 Add LOG2_ID_PAGE_SIZE to the mix of options on ia64. 2003-09-09 18:30:20 +00:00
options.pc98 MFi386: revision 1.201. 2003-11-15 12:31:02 +00:00
options.powerpc Options that go into homonymous headers shouldn't specify the header name. 2003-04-12 09:40:37 +00:00
options.sparc64 Hook syscons and the creator driver up to the sparc64. This compiles but 2003-08-24 01:54:06 +00:00
systags.sh