Date: Sun, 18 Oct 2009 13:05:23 -0700 From: Brent Jones <brent@servuhome.net> To: Adrian Chadd <adrian@freebsd.org> Cc: Hongtao Yin <htyin@huawei.com>, freebsd-performance@freebsd.org Subject: Re: Comparison of FreeBSD/Linux TCP Throughput performance Message-ID: <ee9f3b480910181305x5c8661a7mb7bfdd2ddd0a267d@mail.gmail.com> In-Reply-To: <d763ac660910180755i7f6fd3c7q8578bfed11978b9d@mail.gmail.com> References: <78DB4AE8EF5F4A1EBD3992D7404B2725@china.huawei.com> <d763ac660910180755i7f6fd3c7q8578bfed11978b9d@mail.gmail.com>
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On Sun, Oct 18, 2009 at 7:55 AM, Adrian Chadd <adrian@freebsd.org> wrote: > FYI, I installed netperf on my local p4-D test boxes that I use for > other testing. > > 128 byte send/receive buffers on the client side: > > kristy# netperf -H 192.168.10.2 -p 22113 -l 10 > TCP STREAM TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to 192.168.10.2 > (192.168.10.2) port 0 AF_INET > Recv =A0 Send =A0 =A0Send > Socket Socket =A0Message =A0Elapsed > Size =A0 Size =A0 =A0Size =A0 =A0 Time =A0 =A0 Throughput > bytes =A0bytes =A0 bytes =A0 =A0secs. =A0 =A010^6bits/sec > > =A08192 =A0 =A0128 =A0 =A0128 =A0 =A010.00 =A0 =A0 426.17 > > 1kbyte send/receive buffers: > > kristy# netperf -H 192.168.10.2 -p 22113 -l 10 > TCP STREAM TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to 192.168.10.2 > (192.168.10.2) port 0 AF_INET > Recv =A0 Send =A0 =A0Send > Socket Socket =A0Message =A0Elapsed > Size =A0 Size =A0 =A0Size =A0 =A0 Time =A0 =A0 Throughput > bytes =A0bytes =A0 bytes =A0 =A0secs. =A0 =A010^6bits/sec > > =A08192 =A0 1024 =A0 1024 =A0 =A010.00 =A0 =A0 903.39 > > 8kbyte send/receive buffers: > > kristy# netperf -H 192.168.10.2 -p 22113 -l 10 > TCP STREAM TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to 192.168.10.2 > (192.168.10.2) port 0 AF_INET > Recv =A0 Send =A0 =A0Send > Socket Socket =A0Message =A0Elapsed > Size =A0 Size =A0 =A0Size =A0 =A0 Time =A0 =A0 Throughput > bytes =A0bytes =A0 bytes =A0 =A0secs. =A0 =A010^6bits/sec > > =A08192 =A0 8192 =A0 8192 =A0 =A010.00 =A0 =A0 913.71 > > Both boxes are 7.2-REL amd64 boxes on 3.4GHz Pentium-D CPUs using some > onboard flavour of the intel e1000 NIC: > > =A0 =A0device =A0 =A0 =3D '82573E Intel Corporation 82573E Gigabit Ethern= et > Controller (Copper)' > > They are connected via a Cisco 3750G L3 switch. In fact, the traffic > is routed, rather than switched. > > My /etc/sysctl.conf: > > net.inet.icmp.icmplim=3D0 > net.inet.icmp.icmplim_output=3D0 > net.inet.tcp.msl=3D3000 > net.inet.tcp.sendspace=3D8192 > net.inet.tcp.recvspace=3D8192 > kern.maxfilesperproc=3D65536 > kern.maxfiles=3D262144 > kern.ipc.maxsockets=3D32768 > kern.ipc.somaxconn=3D1024 > kern.ipc.nmbclusters=3D131072 > net.inet.ip.fw.enable=3D0 > kern.ipc.somaxconn=3D10240 > > 2c, > > > Adrian > > 2009/10/15 Hongtao Yin <htyin@huawei.com>: >> Hi, >> >> Can you try with 64K and up tp 1MB buffers? I see ~1Gbit speeds with my FreeBSD boxes using Broadcom NIC's and cheap Netgear switches. I'm not sure how the original tester got such poor numbers, when my setup is relatively low end, and sustaining Gbit speeds is no major feat. --=20 Brent Jones brent@servuhome.net
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