Iperf For Windows 7 64-bit
Iperf download link below http://www.softpedia.com/progDownload/Iperf-Download-78352.html. Mar 27, 2012 iperf download link below http://www.softpedia.com/progDownload/Iperf-Download-78352.html.
One of our clients shared his experience in testing 10G back-to-back link between two servers. The first three charts are for the iperf Client.
Note that UDP datagram size is set to the maximum 65500 bytes. It was found that setting it to 64kBytes somehow affects Windows Task Manager - it doesn't show the traffic. Four threads together pushed around 3Gbits/sec of traffic: Charts per thread and total of 4 threads match Task Manager. CPU goes around 70% on Clinet: This is the Server side: Packet loss is quite significant: Server CPU is less loaded: Another set of tests on Client:.and Server, with almost the same results: Minor tune up of parameters didn't help much, on Client:.and Server: When he launched the second pair of iperf Client - Server, total aggregated bandwidth was still around 3 Gbits/sec. Which points out to the possible problem with the 10G network cards. The bottleneck was proven to be not on Iperf side.
IPerf3 is a tool for active measurements of the maximum achievable bandwidth on IP networks. It supports tuning of various parameters related to timing, buffers and protocols (TCP, UDP, SCTP with IPv4 and IPv6). For each test it reports the bandwidth, loss, and other parameters. This is a new implementation that shares no code with the original iPerf and also is not backwards compatible. IPerf was orginally developed by NLANR/DAST.
IPerf3 is principally developed by ESnet / Lawrence Berkeley National Laboratory. It is released under a three-clause BSD license. IPerf features: TCP and SCTP Measure bandwidth Report MSS/MTU size and observed read sizes.
Iperf For Windows Server
Support for TCP window size via socket buffers. UDP Client can create UDP streams of specified bandwidth. Measure packet loss Measure delay jitter Multicast capable Cross-platform: Windows, Linux, Android, MacOS X, FreeBSD, OpenBSD, NetBSD, VxWorks, Solaris. Client and server can have multiple simultaneous connections (-P option).
Java 64 Bit Windows 7
Server handles multiple connections, rather than quitting after a single test. Can run for specified time (-t option), rather than a set amount of data to transfer (-n or -k option). Print periodic, intermediate bandwidth, jitter, and loss reports at specified intervals (-i option). Run the server as a daemon (-D option) Use representative streams to test out how link layer compression affects your achievable bandwidth (-F option). A server accepts a single client simultaneously (iPerf3) multiple clients simultaneously (iPerf2) New: Ignore TCP slowstart (-O option). New: Set target bandwidth for UDP and (new) TCP (-b option).
New: Set IPv6 flow label (-L option) New: Set congestion control algorithm (-C option) New: Use SCTP rather than TCP (-sctp option) New: Output in JSON format (-J option). New: Disk read test (server: iperf3 -s / client: iperf3 -c testhost -i1 -F filename) New: Disk write tests (server: iperf3 -s -F filename / client: iperf3 -c testhost -i1).