Date: Thu, 20 Nov 2003 22:49:28 +0100 From: Andre Oppermann <andre@freebsd.org> To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/netinet6 raw_ip6.c Message-ID: <3FBD36E8.A5ADB8C8@freebsd.org> References: <200311202147.hAKLlKmZ005242@repoman.freebsd.org>
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Andre Oppermann wrote: > > andre 2003/11/20 13:47:20 PST > > FreeBSD src repository > > Modified files: > sys/netinet6 raw_ip6.c > Log: > 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) > > Revision Changes Path > 1.35 +3 -6 src/sys/netinet6/raw_ip6.c This fixes IPv6 build of kernel. I forgot to add this file to the previous commit. I'm sorry for any inconvinence this may have caused. Pointy hat to me. -- Andre
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