---
name: "hey"
section: "1"
platform: "linux"
package: "hey"
version: "0.1.4+ds-1+b8"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/hey"
---

# hey(1)

HTTP load generator, formerly known as rakyll/boom

## NAME

hey - HTTP load generator, formerly known as rakyll/boom

## SYNOPSIS

**hey** \[*options*...\] *\<url\>*

## OPTIONS

- **-n**

  Number of requests to run. Default is 200.

- **-c**

  Number of workers to run concurrently. Total number of requests cannot be smaller than the concurrency level. Default is 50.

- **-q**

  Rate limit, in queries per second (QPS) per worker. Default is no rate limit.

- **-z**

  Duration of application to send requests. When duration is reached, application stops and exits. If duration is specified, n is ignored. Examples: **-z** 10s **-z** 3m.

- **-o**

  Output type. If none provided, a summary is printed. "csv" is the only supported alternative. Dumps the response metrics in comma-separated values format.

- **-m**

  HTTP method, one of GET, POST, PUT, DELETE, HEAD, OPTIONS.

- **-H**

  Custom HTTP header. You can specify as many as needed by repeating the flag. For example, **-H** "Accept: text/html" **-H** "Content-Type: application/xml" .

- **-t**

  Timeout for each request in seconds. Default is 20, use 0 for infinite.

- **-A**

  HTTP Accept header.

- **-d**

  HTTP request body.

- **-D**

  HTTP request body from file. For example, */home/user/file.txt* or ./file.txt.

- **-T**

  Content-type, defaults to "text/html".

- **-a**

  Basic authentication, username:password.

- **-x**

  HTTP Proxy address as host:port.

**-h2** Enable HTTP/2.

**-host** HTTP Host header.

- **-disable-compression**

  Disable compression.

- **-disable-keepalive**

  Disable keep-alive, prevents re-use of TCP connections between different HTTP requests.

- **-disable-redirects**

  Disable following of HTTP redirects

- **-cpus**

  Number of used cpu cores. (default for current machine is 6 cores)