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GitHub - machinezone/tcpkali: Fast multi-core TCP and WebSockets load generator.

 6 years ago
source link: https://github.com/machinezone/tcpkali
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About

tcpkali is a high performance TCP and WebSocket load generator and sink.

tcpkali mascot

Features

  • Opens millions of connections from a single host by using available interface aliases.
  • Efficient multi-core operation (--workers); utilizes all available cores by default.
  • Allows opening massive number of connections (--connections)
  • Allows limiting an upstream and downstream of a single connection throughput (--channel-bandwidth-downstream, --channel-bandwidth-upstream or --message-rate)
  • Allows specifying the first and subsequent messages (--message, --first-message).
  • Measures response latency percentiles using HdrHistogram (--latency-marker)
  • Sends stats to StatsD/DataDog (--statsd)

Quick example: testing a web server

tcpkali -em "GET / HTTP/1.1\r\nHost: google.com\r\n\r\n" -r 10 \
        --latency-marker "HTTP/1.1" google.com:80

Install

From packages

OS Package manager Command
Mac OS X Homebrew brew install tcpkali
Mac OS X MacPorts port install tcpkali
FreeBSD pkgng pkg install tcpkali
Linux nix nix-env -i tcpkali

From sources

Install the following packages first:

  • autoconf
  • automake
  • libtool
  • bison
  • gcc-c++
  • ncurses-devel or equivalent ncurses package, optional.

Build and install:

test -f configure || autoreconf -iv
./configure
make
sudo make install

Usage (Short version)

Usage: tcpkali [OPTIONS] [-l <port>] [<host:port>...]
Where some OPTIONS are:
  -h                   Print this help screen, then exit
  --help               Print long help screen, then exit
  -d                   Dump i/o data for a single connection

  -c <N>               Connections to keep open to the destinations
  -l <port>            Listen on the specified port
  --ws, --websocket    Use RFC6455 WebSocket transport
  -T <Time=10s>        Exit after the specified amount of time

  -e                   Unescape backslash-escaping in a message string
  -1 <string>          Message to send to the remote host once
  -m <string>          Message to repeatedly send to the remote
  -r <Rate>            Messages per second to send in a connection

Variable units and recognized multipliers:
  <N>, <Rate>:  k (1000, as in "5k" is 5000), m (1000000)
  <Time>:       ms, s, m, h, d (milliseconds, seconds, minutes, hours, days)
  <Rate> and <Time> can be fractional values, such as 0.25.

You can get the full list of options using tcpkali --help, from man tcpkali, and by consulting the tcpkali man page source.

Usage Examples

A few command line examples


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