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"); > } > _______________________________________________ > freebsd-ipfw@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-ipfw > To unsubscribe, send any mail to "freebsd-ipfw-unsubscribe@freebsd.org" -- Michael Scheidell, CTO o: 561-999-5000 d: 561-948-2259 ISN: 1259*1300 >*| *SECNAP Network Security Corporation * Certified SNORT Integrator * 2008-9 Hot Company Award Winner, World Executive Alliance * Five-Star Partner Program 2009, VARBusiness * Best in Email Security,2010: Network Products Guide * King of Spam Filters, SC Magazine 2008 ______________________________________________________________________ This email has been scanned and certified safe by SpammerTrap(r). For Information please see http://www.secnap.com/products/spammertrap/ ______________________________________________________________________
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