Date: Fri, 23 Dec 2005 17:11:04 +0800 From: "ShouYan Mao" <symao@juniper.net> To: "Andre Oppermann" <andre@freebsd.org>, <freebsd-current@freebsd.org> Cc: freebsd-net@freebsd.org Subject: RE: Network performance measurements of -current Message-ID: <6834BE1811D97C4B8581CE6BD14506800545C5@lepton.jnpr.net>
next in thread | raw e-mail | index | archive | help
So, would you try it with PCI-E Gigabit card?
Best Regards.
Shouyan
-------------------------------------------------------
I'm not the best, but I try to do better.
-------------------------------------------------------
-----Original Message-----
From: owner-freebsd-net@freebsd.org =
[mailto:owner-freebsd-net@freebsd.org] On Behalf Of Andre Oppermann
Sent: 2005=C4=EA12=D4=C223=C8=D5 2:17
To: freebsd-current@freebsd.org
Cc: freebsd-net@freebsd.org
Subject: Network performance measurements of -current
As part my funded TCP/IP optimization work I'm doing lots of =
measurements
and profiling with an Agilent N2X network tester and calibrated traffic
generator.
The following data shall serve as baseline of the current performance we
get out of FreeBSD 7-current. More to come tomorrow though.
OS: FreeBSD 7-current as of 20051222-1600 UTC
KERNEL: Generic kernel, minus WITNESS and INVARIANTS, plus HWPMC, =
HZ=3D1000
HARDWARE: Dual Opteron 852 2.6Ghz, Tyan S2882 Mobo with AMD-8131 PCI-X =
tunnel
HARDWARE: dual Broadcom Gigabit BMC5704C PCI-X-133 ("bge")
HARDWARE: dual Intel Gigabit 82546EB PCI-X-133 ("em")
Uniprocessor kernel
bge:
normal forwarding bge0->bge1: =
@64/326kpps/166us/402kpps(30%Loss)/194us
normal forwarding bge0->bge1: @1500/81kpps/520us
normal forwarding bge0->disc0: @64/1205kpps
IP fastforwarding bge0->bge1: =
@64/565kpps/192us/575kpps(60%Loss)/1090us
IP fastforwarding bge0->bge1: @1500/81kpps/730us
IP fastforwarding bge0->disc0: @64/1160kpps
net.isr.direct=3D1 bge0->bge1: =
@64/476kpps/211us/487kpps(68%Loss)/1284us
net.isr.direct=3D1 bge0->bge1: @1500/81kpps/760us
net.isr.direct=3D1 bge0->disc0: @64/1250kpps
polling (*) bge0->bge1: =20
@64/420kpps(9%Loss)/1385us/416kpps(72%Loss)/1600us
polling (*) bge0->bge1: @1500/71kpps(9%Loss)/850us
polling (*) bge0->disc0: @64/697kpps
Comments: Under full load the normal processing breaks completely down
while with IP fastforwarding it levels off but continues to forward.
Strangely with polling it has 9% loss at all loads (even at 1% =
wirespeed).
May be related to HZ=3D1000.
em:
normal forwarding em0->em1: =
@64/372kpps/112us/396kpps(11%Loss)/131us
normal forwarding em0->em1: @1500/81kpps/170us
normal forwarding em0->disc0: @64/1130kpps
IP fastforwarding em0->em1: =
@64/565kpps/45us/585kpps(4%Loss)/1600us
IP fastforwarding em0->em1: @1500/81kpps/135us
IP fastforwarding em0->disc0: @64/1116kpps
net.isr.direct=3D1 em0->em1: later
net.isr.direct=3D1 em0->disc0: later
polling (*) em0->em1: later
polling (*) em0->disc0: later
(*) max_burst=3D1000, user_frac=3D0, each_burst=3D30
Sponsored by: TCP/IP Optimization Fundraise 2005
--=20
Andre
_______________________________________________
freebsd-net@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-net
To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org"
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?6834BE1811D97C4B8581CE6BD14506800545C5>