oha is a tiny program that sends some load to a web application and show realtime tui inspired by rakyll/hey.
This program is written in Rust and powered by tokio and beautiful tui by tui-rs.
This program is built on stable Rust.
cargo install oha
You can optionally build oha against rustls instead of native-tls.
cargo install --no-default-features --features rustls oha
pacman -S oha
brew install oha
echo "deb http://packages.azlux.fr/debian/ buster main" | sudo tee /etc/apt/sources.list.d/azlux.list
wget -qO - https://azlux.fr/repo.gpg.key | sudo apt-key add -
apt update
apt install oha
-q option works different from rakyll/hey. It's set overall query per second instead of for each workers.
``` oha 0.5.2 hatoo hato2000@gmail.com Ohayou(おはよう), HTTP load generator, inspired by rakyll/hey with tui animation.
USAGE:
oha [FLAGS] [OPTIONS]
ARGS:
OPTIONS:
-n
-c <N_WORKERS>
Number of workers to run concurrently. You may should increase limit to number of open
files for larger `-c`. [default: 50]
-z <DURATION>
Duration of application to send requests. If duration is specified, n is ignored.
Examples: -z 10s -z 3m.
-q <QUERY_PER_SECOND>
Rate limit for all, in queries per second (QPS)
--latency-correction
Correct latency to avoid coordinated omission problem. It's ignored if -q is not set.
--no-tui
No realtime tui
--fps <FPS>
Frame per second for tui. [default: 16]
-m, --method <METHOD>
HTTP method [default: GET]
-H <HEADERS>
Custom HTTP header. Examples: -H "foo: bar"
-t <TIMEOUT>
Timeout for each request. Default to infinite.
-A <ACCEPT_HEADER>
HTTP Accept Header.
-d <BODY_STRING>
HTTP request body.
-D <BODY_PATH>
HTTP request body from file.
-T <CONTENT_TYPE>
Content-Type.
-a <BASIC_AUTH>
Basic authentication, username:password
--http-version <HTTP_VERSION>
HTTP version. Available values 0.9, 1.0, 1.1, 2.
--host <HOST>
HTTP Host header
--disable-compression
Disable compression.
-r, --redirect <REDIRECT>
Limit for number of Redirect. Set 0 for no redirection. [default: 10]
--disable-keepalive
Disable keep-alive, prevents re-use of TCP connections between different HTTP requests.
--ipv6
Lookup only ipv6.
--ipv4
Lookup only ipv4.
--insecure
Accept invalid certs.
--connect-to <CONNECT_TO>
Override DNS resolution and default port numbers with strings like
'example.org:443:localhost:8443'
-h, --help
Print help information
-V, --version
Print version information
```
oha uses default options inherited from rakyll/hey but you may need to change options to stress test in more realistic condition.
I suggest to run oha with following options.
oha <-z or -n> -c <number of concurrent connections> -q <query per seconds> --latency-correction --disable-keepalive <target-address>
--disable-keepalive
In real, user doesn't query same URL using Keep-Alive. You may want to run without Keep-Alive.
--latency-correction
You can avoid Coordinated Omission Problem by using --latency-correction.
Feel free to help us!
Here are some issues to improving.