Date: Fri, 4 Mar 2011 14:36:05 -0500 From: Michael Scheidell <michael.scheidell@secnap.com> To: JJC <cummingsj@gmail.com> Cc: freebsd-ipfw@freebsd.org Subject: Re: if_bridge and ipdivert oddity? Message-ID: <4D713F25.6020909@secnap.com> In-Reply-To: <AANLkTi=u7N7SRHH1LxMmRZ0qpbuyw-cVEwyB=rnH8oGC@mail.gmail.com> References: <AANLkTi=u7N7SRHH1LxMmRZ0qpbuyw-cVEwyB=rnH8oGC@mail.gmail.com>
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Hey, thats a nice, clean looking test :-)
I suspect SOME of the latency is the unbuffered printf.
two printfs to &2 for every packet that flows.
On 3/4/11 2:01 PM, JJC wrote
> inline transparently on fBSD
>
> ** begin perl snippet**
> #!/usr/bin/perl -w
> use Net::Divert;
>
> select STDERR; $| = 1;
>
> my $divobj = Net::Divert->new('localhost',8000);
>
> printf(STDERR "open new divobj\n");
>
> $divobj->getPackets(\&alterPacket);
>
> sub alterPacket { my($packet,$fwtag) = @_;
> printf(STDERR "i");
> $divobj->putPacket($packet,$fwtag);
> printf(STDERR "o");
> }
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