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Bonnie: Filesystem Benchmark Program Bonnie tests the speed of file I/O using standard C library calls. It does reads and writes of blocks, testing for the limit of sustained data rate (usually limited by the drive or controller) and updates on a file (better simulating normal operating conditions and quite dependent on drive and OS optimisations). The per-character read and write tests are generally limited by CPU speed only on current-generation hardware. It takes some 35 SPECint92 to read or write a file at a rate of 1MB/s using getc() and putc(). The seek tests are dependent on the buffer cache size, since the fraction of disk blocks that fits into the buffer cache will be found without any disk operation and will contribute zero seek time readings. I.e. if the buffer cache is 16MB and the Bonnie test file is 32MB in size, then the seek time will come out as half its real value. The seek time includes rotational delay, and will thus always come out higher than specified for a drive.

DBS is a useful tool chest for evaluating TCP implementations, specifically flow control, retransmission control and congestion avoidance. -It can treat multiple TCP connections spanning multiple hosts simultaneously, and -It has the capability of measuring the changes of application level throughput at every data transmission.

Dhrystone is a synthetic computing benchmark program developed in 1984 by Reinhold P. Weicker intended to be representative of system (integer) programming. The Dhrystone grew to become representative of general processor (CPU) performance. DMIPS value is result of dhrystone test divided by 1757, results are often reported in DMIPS/MHz. For more information, see http://en.wikipedia.org/wiki/Dhrystone.

Flowgrind is an advanced TCP traffic generator for testing and benchmarking Linux, FreeBSD, and Mac OS X TCP/IP stacks. In contrast to similar tools like iperf or netperf it features a distributed architecture, where throughput and other metrics are measured between arbitrary flowgrind server processes.

HPL is a software package that solves a (random) dense linear system in double precision (64 bits) arithmetic on distributed-memory computers. It can thus be regarded as aportable as well as freely available implementation of the High Performance Computing Linpack Benchmark. The algorithm used by HPL can be summarized by the following keywords: Two-dimensional block-cyclic data distribution - Right-looking variant of the LU factorization with row partial pivoting featuring multiple look-ahead depths - Recursive panel factorization with pivot search and column broadcast combined - Various virtual panel broadcast topologies - bandwidth reducing swap-broadcast algorithm - backward substitution with look-ahead of depth 1. The HPL package provides a testing and timing program to quantify the accuracy of the obtained solution as well as the time it took to compute it. The best performance achievable by this software on your system depends on a large variety of factors. Nonetheless, with some restrictive assumptions on the interconnection network, the algorithm described here and its attached implementation are scalable in the sense that their parallel efficiency is maintained constant with respect to the per processor memory usage.

NetPerfMeter is a network performance meter for the UDP, TCP, SCTP and DCCP transport protocols over IPv4 and IPv6. It simultaneously transmits bidirectional flows to an endpoint and measures the resulting flow bandwidths and QoS. The results are written as vector and scalar files. The vector files can e.g. be used to create plots of the results.

This program is a much more convient version of the ttcp program. It uses inetd (or simulates its behaviour) to start off the remote side program which will send/receive data. Both sides measure the time and number of bytes transfered. The local side will print the measures. The format of the output can be specified on the commandline.

The octave-forge package is the result of The GNU Octave Repositry project, which is intended to be a central location for custom scripts, functions and extensions for GNU Octave. contains the source for all the functions plus build and install scripts. This is benchmark. The package contains code used to benchmark speed of Octave.

Pathrate is a tool that can estimate the capacity of network paths. An important feature of Pathrate is that it is robust to cross traffic effects, meaning that it can measure the path capacity even when the path is significantly loaded. This is crucial, since the hardest paths to measure are the heavily loaded ones.

ClustalW2 is a general purpose multiple sequence alignment program for DNA or proteins. It produces biologically meaningful multiple sequence alignments of divergent sequences. It calculates the best match for the selected sequences, and lines them up so that the identities, similarities and differences can be seen. Evolutionary relationships can be seen via viewing Cladograms or Phylograms.