Vegeta 
Vegeta is a versatile HTTP load testing tool built out of a need to drill
HTTP services with a constant request rate.
It can be used both as a command line utility and a library.
Install
Pre-compiled executables
Get them here.
Homebrew on Mac OS X
You can install Vegeta using the Homebrew package manager on Mac OS X:
$ brew update && brew install vegeta
Source
You need go installed and GOBIN in your PATH. Once that is done, run the
command:
$ go get -u github.com/tsenart/vegeta
Versioning
Both the library and the CLI are versioned with SemVer v2.0.0.
After v8.0.0, the two components
are versioned separately to better isolate breaking changes to each.
CLI releases are tagged with cli/vMAJOR.MINOR.PATCH and published on the Github releases page.
As for the library, new versions are tagged with both lib/vMAJOR.MINOR.PATCH and vMAJOR.MINOR.PATCH.
The latter tag is required for compatibility with go mod.
Contributing
See CONTRIBUTING.md.
Usage manual
Usage: vegeta [global flags] <command> [command flags]
global flags:
-cpus int
Number of CPUs to use (defaults to the number of CPUs you have)
-profile string
Enable profiling of [cpu, heap]
-version
Print version and exit
attack command:
-body string
Requests body file
-cert string
TLS client PEM encoded certificate file
-chunked
Send body with chunked transfer encoding
-connections int
Max open idle connections per target host (default 10000)
-duration duration
Duration of the test [0 = forever]
-format string
Targets format [http, json] (default "http")
-h2c
Send HTTP/2 requests without TLS encryption
-header value
Request header
-http2
Send HTTP/2 requests when supported by the server (default true)
-insecure
Ignore invalid server TLS certificates
-keepalive
Use persistent connections (default true)
-key string
TLS client PEM encoded private key file
-laddr value
Local IP address (default 0.0.0.0)
-lazy
Read targets lazily
-max-body value
Maximum number of bytes to capture from response bodies. [-1 = no limit] (default -1)
-max-workers uint
Maximum number of workers (default 18446744073709551615)
-name string
Attack name
-output string
Output file (default "stdout")
-proxy-header value
Proxy CONNECT header
-rate value
Number of requests per time unit [0 = infinity] (default 50/1s)
-redirects int
Number of redirects to follow. -1 will not follow but marks as success (default 10)
-resolvers value
List of addresses (ip:port) to use for DNS resolution. Disables use of local system DNS. (comma separated list)
-root-certs value
TLS root certificate files (comma separated list)
-targets string
Targets file (default "stdin")
-timeout duration
Requests timeout (default 30s)
-unix-socket string
Connect over a unix socket. This overrides the host address in target URLs
-workers uint
Initial number of workers (default 10)
encode command:
-output string
Output file (default "stdout")
-to string
Output encoding [csv, gob, json] (default "json")
plot command:
-output string
Output file (default "stdout")
-threshold int
Threshold of data points above which series are downsampled. (default 4000)
-title string
Title and header of the resulting HTML page (default "Vegeta Plot")
report command:
-buckets string
Histogram buckets, e.g.: "[0,1ms,10ms]"
-every duration
Report interval
-output string
Output file (default "stdout")
-type string
Report type to generate [text, json, hist[buckets], hdrplot] (default "text")
examples:
echo "GET http://localhost/"