Date: Tue, 17 Oct 2006 03:39:46 -0700 (PDT) From: Alvin Oga <aoga@mail.Linux-Consulting.com> To: freebsd-ipfw@freebsd.org Cc: Alvin Oga <aoga@mail.Linux-Consulting.com> Subject: Re: ipfw versions - /usr/src/sbin Message-ID: <200610171039.k9HAdkua024264@Maggie.Linux-Consulting.com> In-Reply-To: <200610060938.k969cCiO020772@Maggie.Linux-Consulting.com>
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> > Alvin Oga wrote:
> >
> > i need to change the lines:
> > #
> > # line 3484 in ipfw2.c v1.99
> > #
> > if ( p.fs.qsize > 100 )
> > errx ( EX_DATAERR, "2 <= queue size <= 100 )
> >
> > the 100 need to be changed to 10,000 to allow for a bigger queue
> > according to the customer that wants to use ipfw + dummynet for
> > testing gigE thruput
>
...
>
> src/sys/netinet/ip_dummynet.c:
>
> set_fs_parms(struct dn_flow_set *x, struct dn_flow_set *src)
> {
> x->flags_fs = src->flags_fs;
> x->qsize = src->qsize;
> x->plr = src->plr;
> x->flow_mask = src->flow_mask;
> if (x->flags_fs & DN_QSIZE_IS_BYTES) {
> if (x->qsize > 1024*1024)
> x->qsize = 1024*1024 ;
> } else {
> if (x->qsize == 0)
> x->qsize = 50 ;
> if (x->qsize > 100)
> x->qsize = 50 ;
we're changing the 100 to 10000
> }
...
> If I just remove this limit, will I hit some other limits in
> dummynet code (except overall KVA or UMA zone limit)?
there's other equivalent ( gigE ) changes we're making in:
src/sys/dev/em/if/en.h
/etc/sysctl.conf
ipfw2.c
DUMMYNET kernel ( modified GENERIC )
.. and still hunting for more options to see if we can go
.. bigger and faster than the generic bear
c ya
alvin
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