Date: Fri, 29 Oct 2010 10:20:10 +0300 From: =?windows-1251?B?yu7t/Oru4iDF4uPl7ejp?= <kes-kes@yandex.ru> To: freebsd-net@freebsd.org Subject: How to obtain place of low perfomance? Message-ID: <364322520.20101029102010@yandex.ru>
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Hi, Freebsd-net.
serv1# ifocnfig nfe0
nfe0: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> metric 0 mtu 1500
options=10b<RXCSUM,TXCSUM,VLAN_MTU,TSO4>
ether 00:13:d4:ce:82:16
inet 10.11.8.17 netmask 0xfffffc00 broadcast 10.11.11.255
inet 10.11.8.15 netmask 0xfffffc00 broadcast 10.11.11.255
media: Ethernet autoselect (1000baseTX <full-duplex>)
status: active
serv1# ifconfig igb0
igb0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
options=19b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,TSO4>
ether 00:1b:21:45:da:b8
media: Ethernet autoselect (1000baseTX <full-duplex>)
status: active
serv1# ifconfig vlan7
vlan7: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
options=3<RXCSUM,TXCSUM>
ether 00:1b:21:45:da:b8
inet 10.11.15.15 netmask 0xffffff00 broadcast 10.11.15.255
inet 10.11.7.1 netmask 0xffffff00 broadcast 10.11.7.255
media: Ethernet autoselect (1000baseTX <full-duplex>)
status: active
vlan: 7 parent interface: igb0
doing bw test with iperf it show low performance on nfe0.
# iperf -c 10.11.8.17
------------------------------------------------------------
Client connecting to 10.11.8.17, TCP port 5001
TCP window size: 32.5 KByte (default)
------------------------------------------------------------
[ 3] local 10.11.8.16 port 63911 connected with 10.11.8.17 port 5001
[ ID] Interval Transfer Bandwidth
[ 3] 0.0-10.5 sec 124 MBytes 98.8 Mbits/sec
# iperf -c 10.11.7.1
------------------------------------------------------------
Client connecting to 10.11.7.1, TCP port 5001
TCP window size: 32.5 KByte (default)
------------------------------------------------------------
[ 3] local 10.11.7.2 port 61422 connected with 10.11.7.1 port 5001
[ ID] Interval Transfer Bandwidth
[ 3] 0.0-10.3 sec 800 MBytes 653 Mbits/sec
despite on it is integrated I expect about 300-400Mbit throughput
does nfe0 really so poor NIC?
state of nfe0 while 'iperf' testing
# netstat -w 1 -h -d -I nfe0
input (nfe0) output
packets errs bytes packets errs bytes colls drops
1.6K 0 543K 2.4K 0 1.9M 0 0
1.8K 0 613K 2.4K 0 1.9M 0 0
1.7K 0 620K 2.5K 0 1.9M 0 0
1.8K 0 627K 2.6K 0 2.0M 0 0
2.1K 0 1.2M 2.8K 0 1.9M 0 0
28K 0 40M 20K 0 3.0M 0 0
11K 0 14M 8.3K 0 2.3M 0 0
12K 0 16M 9.0K 0 2.3M 0 0
2.8K 0 2.0M 3.1K 0 2.0M 0 0
11K 0 14M 8.5K 0 2.5M 0 0
7.8K 0 9.6M 6.4K 0 2.2M 0 0
12K 0 16M 9.1K 0 2.3M 0 0
6.9K 0 8.4M 5.8K 0 2.1M 0 0
3.0K 0 2.5M 3.3K 0 2.0M 0 0
11K 0 14M 8.2K 0 2.3M 0 0
1.7K 0 664K 2.6K 0 1.9M 0 0
1.7K 0 588K 2.4K 0 1.9M 0 0
1.6K 0 627K 2.3K 0 1.8M 0 0
--
С уважением,
Коньков mailto:kes-kes@yandex.ru
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