Iperf loop性能比较及区别

测试环境

硬件：
IBM T43 (PM 2.0 / 1G /60G 7200KPM)

1. FC6

------------------------------------------------------------
Client connecting to 127.0.0.1, TCP port 5001
TCP window size: 49.2 KByte (default)
------------------------------------------------------------
[ 3] local 127.0.0.1 port 40239 connected with 127.0.0.1 port 5001
[ ID] Interval Transfer Bandwidth
[ 3] 0.0-10.0 sec 4.48 GBytes 3.85 Gbits/sec
[wangjh@ranger iperf-1.7.0-linux-2.1.tar.gz_FILES]$ ./iperf -c 127.0.0.1
------------------------------------------------------------
Client connecting to 127.0.0.1, TCP port 5001
TCP window size: 49.2 KByte (default)
------------------------------------------------------------
[ 3] local 127.0.0.1 port 40240 connected with 127.0.0.1 port 5001
[ ID] Interval Transfer Bandwidth
[ 3] 0.0-10.0 sec 4.50 GBytes 3.87 Gbits/sec
[wangjh@ranger iperf-1.7.0-linux-2.1.tar.gz_FILES]$ ./iperf -c 127.0.0.1
------------------------------------------------------------
Client connecting to 127.0.0.1, TCP port 5001
TCP window size: 49.2 KByte (default)
------------------------------------------------------------
[ 3] local 127.0.0.1 port 40377 connected with 127.0.0.1 port 5001
[ ID] Interval Transfer Bandwidth
[ 3] 0.0-10.0 sec 4.46 GBytes 3.83 Gbits/sec

2. Windows 2003

E:/Downloads/ByFireFox>iperf.exe -c 127.0.0.1
------------------------------------------------------------
Client connecting to 127.0.0.1, TCP port 5001
TCP window size: 8.00 KByte (default)
------------------------------------------------------------
[1908] local 127.0.0.1 port 1897 connected with 127.0.0.1 port 5001
[ ID] Interval Transfer Bandwidth
[1908] 0.0-10.0 sec 761 MBytes 638 Mbits/sec

E:/Downloads/ByFireFox>iperf.exe -c 127.0.0.1
------------------------------------------------------------
Client connecting to 127.0.0.1, TCP port 5001
TCP window size: 8.00 KByte (default)
------------------------------------------------------------
[1908] local 127.0.0.1 port 1900 connected with 127.0.0.1 port 5001
[ ID] Interval Transfer Bandwidth
[1908] 0.0-10.0 sec 763 MBytes 639 Mbits/sec

E:/Downloads/ByFireFox>iperf.exe -c 127.0.0.1
------------------------------------------------------------
Client connecting to 127.0.0.1, TCP port 5001
TCP window size: 8.00 KByte (default)
------------------------------------------------------------
[1908] local 127.0.0.1 port 1901 connected with 127.0.0.1 port 5001
[ ID] Interval Transfer Bandwidth
[1908] 0.0-10.0 sec 759 MBytes 635 Mbits/sec

由此可见 windows 2003的loop性能远低于Linux Fedora 6

PC机测试 DELL GX620

环境 FC6

------------------------------------------------------------
[ 3] local 127.0.0.1 port 50639 connected with 127.0.0.1 port 5001
[ 3] 0.0-10.0 sec 4.93 GBytes 4.23 Gbits/sec
[pollux@fedora ~]$ iperf -c 127.0.0.1
------------------------------------------------------------
Client connecting to 127.0.0.1, TCP port 5001
TCP window size: 49.2 KByte (default)
------------------------------------------------------------
[ 3] local 127.0.0.1 port 50640 connected with 127.0.0.1 port 5001
[ 3] 0.0-10.0 sec 4.35 GBytes 3.74 Gbits/sec
[pollux@fedora ~]$ iperf -c 127.0.0.1
------------------------------------------------------------
Client connecting to 127.0.0.1, TCP port 5001
TCP window size: 49.2 KByte (default)
------------------------------------------------------------
[ 3] local 127.0.0.1 port 50641 connected with 127.0.0.1 port 5001
[ 3] 0.0-10.0 sec 4.68 GBytes 4.02 Gbits/sec
[pollux@fedora ~]$ iperf -c 127.0.0.1
------------------------------------------------------------
Client connecting to 127.0.0.1, TCP port 5001
TCP window size: 49.2 KByte (default)
------------------------------------------------------------
[ 3] local 127.0.0.1 port 50642 connected with 127.0.0.1 port 5001
[ 3] 0.0-10.0 sec 4.26 GBytes 3.66 Gbits/sec