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Netperf
Netperf is a software application that provides network bandwidth testing between two hosts on a network. It supports Unix domain sockets, TCP, SCTP, DLPI and UDP via BSD Sockets. Netperf provides a number of predefined tests e.g. to measure bulk (unidirectional) data transfer or request response performance. Netperf was originally developed at Hewlett Packard. See also * Nuttcp * Iperf * NetPIPE * bwping * Flowgrind * Measuring network throughput * Packet generation model A traffic generation model is a stochastic model of the traffic flows or data sources in a communication network, for example a cellular network or a computer network. A packet generation model is a traffic generation model of the packet flows or ... References {{reflist External linksHomepage of netperf Computer network analysis Network performance ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flowgrind
Flowgrind is a testing and benchmarking tool to measure throughput and other metrics for TCP. It was originally developed to study performance and behavior of TCP variants within Wireless mesh networks. In contrast to similar tools like Iperf or Netperf it features a distributed architecture, where throughput and other metrics are measured between flowgrind server processes. The Flowgrind client has the purpose to schedule such measurements and collect the measurement data. Inherent with this architecture and its designation for Wireless mesh networks flowgrind supports: * separation of measured traffic and control traffic (e.g., to measure the wireless performance, but don't let the control traffic interfere), * a simultaneous measurement between any number of hosts running the flowgrind server (e.g., to create wireless crosstalk), * uni-directional, bi-directional or sophisticated request/response tests (e.g., to simulate various usage scenarios and protocols) and * packet ca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nuttcp
The program ttcp (Test TCP) is a utility for measuring network throughput, popular on Unix systems. It measures the network throughput between two systems using the TCP or optionally UDP protocols. It was written by Mike Muuss and Terry Slattery at BRL sometime before December 1984, to compare the performance of TCP stacks by the Computer Systems Research Group (CSRG) of the University of California, Berkeley and Bolt, Beranek and Newman (BBN) to help DARPA decide which version to place in 4.3BSD. Many compatible implementations and derivatives exist including the widely used Iperf. Testing can be done from any platform to any other platform, for example from a Windows machine to a Linux machine, as long as they both have a ttcp application installed. For normal use, ttcp is installed on two machines – one will be the sender, the other the receiver. The receiver is started first and waits for a connection. Once the two connect, the sending machine sends data to the rec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iperf
Iperf is a tool for network performance measurement and tuning. It is a cross-platform tool that can produce standardized performance measurements for any network. Iperf has client and server functionality, and can create data streams to measure the throughput between the two ends in one or both directions. Typical iperf output contains a time-stamped report of the amount of data transferred and the throughput measured. The data streams can be either Transmission Control Protocol (TCP) or User Datagram Protocol (UDP): * ''UDP'': When used for testing UDP capacity, iperf allows the user to specify the datagram size and provides results for the datagram throughput and the packet loss. * ''TCP'': When used for testing TCP capacity, iperf measures the throughput of the payload. Iperf uses 1024 × 1024 for mebibytes and 1000 × 1000 for megabytes. Iperf is open-source software written in C, and it runs on various platforms including Linux, Unix and Windows (either natively or inside ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cross-platform
In computing, cross-platform software (also called multi-platform software, platform-agnostic software, or platform-independent software) is computer software that is designed to work in several computing platforms. Some cross-platform software requires a separate build for each platform, but some can be directly run on any platform without special preparation, being written in an interpreted language or compiled to portable bytecode for which the interpreters or run-time packages are common or standard components of all supported platforms. For example, a cross-platform application may run on Microsoft Windows, Linux, and macOS. Cross-platform software may run on many platforms, or as few as two. Some frameworks for cross-platform development are Codename One, Kivy, Qt, Flutter, NativeScript, Xamarin, Phonegap, Ionic, and React Native. Platforms ''Platform'' can refer to the type of processor (CPU) or other hardware on which an operating system (OS) or application runs, t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Packet Generation Model
A traffic generation model is a stochastic model of the traffic flows or data sources in a communication network, for example a cellular network or a computer network. A packet generation model is a traffic generation model of the packet flows or data sources in a packet-switched network. For example, a web traffic model is a model of the data that is sent or received by a user's web-browser. These models are useful during the development of telecommunication technologies, in view to analyse the performance and capacity of various protocols, algorithms and network topologies . Application The network performance can be analyzed by network traffic measurement in a testbed network, using a network traffic generator such as iperf, bwping and Mausezahn. The traffic generator sends dummy packets, often with a unique packet identifier, making it possible to keep track of the packet delivery in the network. Numerical analysis using network simulation is often a less expensive approach. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Measuring Network Throughput
Throughput of a network can be measured using various tools available on different platforms. This page explains the theory behind what these tools set out to measure and the issues regarding these measurements. Reasons for measuring throughput in networks. People are often concerned about measuring the maximum data throughput in bits per second of a communications link or network access. A typical method of performing a measurement is to transfer a 'large' file from one system to another system and measure the time required to complete the transfer or copy of the file. The throughput is then calculated by dividing the file size by the time to get the throughput in megabits, kilobits, or bits per second. Unfortunately, the results of such an exercise will often result in the goodput which is less than the maximum theoretical data throughput, leading to people believing that their communications link is not operating correctly. In fact, there are many overheads accounted for in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bwping
BWPing is a tool to measure bandwidth and response times between two hosts using Internet Control Message Protocol ( ICMP) echo request/echo reply mechanism. It does not require any special software on the remote host. The only requirement is the ability to respond on ICMP echo request messages. BWPing supports both IPv4 and IPv6 networks. Command syntax bwping -6 -B bind_addr -I ident traf_class(v6) -r reporting_period -u buf_size -b kbps -s pkt_size -v volume target bwping6 -6 -B bind_addr -I ident traf_class(v6) -r reporting_period -u buf_size -b kbps -s pkt_size -v volume target Available options are: * -4 - Forces IPv4 mode. Default mode of operation is IPv4 for bwping and IPv6 for bwping6 otherwise. * -6 - Forces IPv6 mode. Default mode of operation is IPv4 for bwping and IPv6 for bwping6 otherwise. * -B - Sets the source address of outgoing ip packets. By default the address of the outgoing interface will be used. * -I - Sets the Identifier value o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hewlett Packard
The Hewlett-Packard Company, commonly shortened to Hewlett-Packard ( ) or HP, was an American multinational information technology company headquartered in Palo Alto, California. HP developed and provided a wide variety of hardware components, as well as software and related services to consumers, small and medium-sized businesses ( SMBs), and large enterprises, including customers in the government, health, and education sectors. The company was founded in a one-car garage in Palo Alto by Bill Hewlett and David Packard in 1939, and initially produced a line of electronic test and measurement equipment. The HP Garage at 367 Addison Avenue is now designated an official California Historical Landmark, and is marked with a plaque calling it the "Birthplace of 'Silicon Valley'". The company won its first big contract in 1938 to provide test and measurement instruments for Walt Disney's production of the animated film ''Fantasia'', which allowed Hewlett and Packard to formally esta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
C (programming Language)
C (''pronounced like the letter c'') is a General-purpose language, general-purpose computer programming language. It was created in the 1970s by Dennis Ritchie, and remains very widely used and influential. By design, C's features cleanly reflect the capabilities of the targeted CPUs. It has found lasting use in operating systems, device drivers, protocol stacks, though decreasingly for application software. C is commonly used on computer architectures that range from the largest supercomputers to the smallest microcontrollers and embedded systems. A successor to the programming language B (programming language), B, C was originally developed at Bell Labs by Ritchie between 1972 and 1973 to construct utilities running on Unix. It was applied to re-implementing the kernel of the Unix operating system. During the 1980s, C gradually gained popularity. It has become one of the measuring programming language popularity, most widely used programming languages, with C compilers avail ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
DLPI
Directorate of Language Planning and Implementation (DLPI) is a directorate of the Government of Manipur in charge of the language planning and the implementation of policies of Meitei language (officially known as Manipuri language) as well as other indigenous vernaculars of Manipur. The 1st anniversary of the Directorate of Language Planning & Implementation coincided with 18th Meitei Language Day (officially called Manipuri Language Day), the annual commemorative celebration of Meitei language's inclusion in the Eighth Schedule to the Indian Constitution. Though Meitei Language Day (officially called Manipuri Language Day) is annually observed even before the establishment of the Directorate of Language Planning & Implementation, the Directorate is serving as one of the key organisers of the very annual event after just its inception in 2013. Language planning and implementation works During November 2013, in collaboration with the ''Central Institute of Indian Languages ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SCTP
The Stream Control Transmission Protocol (SCTP) is a computer networking communications protocol in the transport layer of the Internet protocol suite. Originally intended for Signaling System 7 (SS7) message transport in telecommunication, the protocol provides the message-oriented feature of the User Datagram Protocol (UDP), while ensuring reliable, in-sequence transport of messages with congestion control like the Transmission Control Protocol (TCP). Unlike UDP and TCP, the protocol supports multihoming and redundant paths to increase resilience and reliability. SCTP is standardized by the Internet Engineering Task Force (IETF) in . The SCTP reference implementation was released as part of FreeBSD version 7, and has since been widely ported to other platforms. Formal oversight The IETF Signaling Transport (SIGTRAN) working group defined the protocol (number 132) in October 2000, and the IETF Transport Area (TSVWG) working group maintains it. defines the protocol. provides an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
