Date: Tue, 7 Mar 2017 14:07:57 -0800 From: Navdeep Parhar <nparhar@gmail.com> To: Mike Tancsa <mike@sentex.net> Cc: "freebsd-net@freebsd.org" <freebsd-net@freebsd.org> Subject: Re: Chelsio netmap support ? (RELENG_11) Message-ID: <CAPFoGT-oxsVCNAm05porR0cJi7o_4GTrw-O8V9zZTpRu9_q82Q@mail.gmail.com> In-Reply-To: <c7f36da2-ce4d-4377-c3d5-509c9ba692a5@sentex.net> References: <93e10699-ecc7-c062-bf85-a26de0de9633@sentex.net> <CAPFoGT9u4Ctw0cMtXeEC=6xP--sSW8rEbdSwGwcXZOpRtYp=EQ@mail.gmail.com> <CAPFoGT8iQg9on9xi%2ByNkZJF-knmHE7b58G1u18SvJyVAJa7MPA@mail.gmail.com> <CAPFoGT_CYSPLrB6h742U%2BTS5qqKeLdrF2tnPGGw%2BiyBwPjmDWw@mail.gmail.com> <c7f36da2-ce4d-4377-c3d5-509c9ba692a5@sentex.net>
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On Tue, Mar 7, 2017 at 1:53 PM, Mike Tancsa <mike@sentex.net> wrote: ... > > Using netsend, I cant seem to blast through a single flow of packets > greater than 800Kpps without packet loss. Can you point me to any > performance tweaks for forwarding / routing ? > > I have 3 boxes, with one in the middle > > (netsend box) <----> (router with chelsio nics) <---> (netreceive box) How is the router configured -- is this something netmap based? Please provide more details of the configuration. What kind of CPU/chipset is it? Do you see any PAUSE frames out of the T5? "sysctl dev.cxl dev.vcxl | grep _pause" Is any CPU core pegged at 100% during the test? Regards, Navdeep > #./netsend 10.151.10.3 500 100 800000 20 > Sending packet of payload size 100 every 0.000001250s for 20 seconds > calling time every 100 cycles > > start: 1488952041.000000000 > finish: 1488952061.000000837 > send calls: 16000000 > send errors: 0 > approx send rate: 800000 pps > time/packet: 1250 ns > approx error rate: 0 > waited: 333086341 > approx waits/sec: 16654317 > approx wait rate: 20 > >
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