cvs commit: src/sys/netinet tcp_input.c tcp_subr.c tcp_var.h

[Steve Kargl]

On Tue, Feb 24, 2004 at 08:44:23AM -0700, Scott Long wrote:
> Andre Oppermann wrote:
> >Andre Oppermann wrote:
> >
> >>andre       2004/02/24 07:27:42 PST
> >>
> >> FreeBSD src repository
> >>
> >> Modified files:
> >>   sys/netinet          tcp_input.c tcp_subr.c tcp_var.h
> >> Log:
> >> Convert the tcp segment reassembly queue to UMA and limit the maximum
> >> amount of segments it will hold.
> >>
> >> The following tuneables and sysctls control the behaviour of the tcp
> >> segment reassembly queue:
> >>
> >>  net.inet.tcp.reass.maxsegments (loader tuneable)
> >>   specifies the maximum number of segments all tcp reassemly queues can
> >>   hold (defaults to 1/16 of nmbclusters).
> >>
> >>  net.inet.tcp.reass.maxqlen
> >>   specifies the maximum number of segments any individual tcp session 
> >>   queue
> >>   can hold (defaults to 48).
> >>
> >>  net.inet.tcp.reass.cursegments (readonly)
> >>   counts the number of segments currently in all reassembly queues.
> >>
> >>  net.inet.tcp.reass.overflows (readonly)
> >>   counts how often either the global or local queue limit has been 
> >>   reached.
> >>
> >> Tested by:      bms, silby
> >> Reviewed by:    bms, silby
> >
> >
> >This changes sizeof(struct tcpcb) and makes a recompile of libkvm and
> >related userland network utilities neccessary.
> >
> 
> Please make this statement a little louder via a HEADS UP message, and
> add an entry to src/UPDATING.
> 

Does this require a _FreeBSD_version bump?  In other words, will
it affect ports/{net,www,sysutils}?

-- 
Steve