Benchmarks

This folder includes a small deno/ts utility to benchmark execution of jobs & flows.

Installation

Install the wmill CLI tool using deno install --unstable -A https://deno.land/x/wmillbench/main.ts.

Update to the latest version using wmillbench upgrade.

To build a local version, you can just run:

deno install -A main.ts

Quickstart

Have your instance expose prometheus metrics (METRICS_ADDR=true).

Then

wmillbench -e admin@windmill.dev -p changeme --host YOUR_HOST

Usage

Usage: wmillbench

Description:

Run Benchmark to measure throughput of windmill.

Options:

-h, –help - Show this help. -V, –version - Show the version number for this program. –host - The windmill host to benchmark. (Default: “http://127.0.0.1:8000/”) –workers - The number of workers to run at once. (Default: 1) -s, –seconds - How long to run the benchmark for (in seconds). (Default: 30) -e, –email - The email to use to login. -p, –password - The password to use to login. -t, –token - The token to use when talking to the API server. Preferred over manual login. -w, –workspace - The workspace to spawn scripts from. (Default: “starter”) -m, –metrics - The url to scrape metrics from. (Default: “http://localhost:8001/metrics”) –export-json - If set, exports will be into a JSON file. –export-csv - If set, exports will be into a csv file. –export-histograms [histograms…] - Mark metrics (without label) that are reported as histograms to export. –export-simple [simple…] - Mark metrics (without label) that are reported as simple values. –maximum-throughput - Maximum number of jobs/flows to start in one second. (Default: Infinity) –use-flows - Run flows instead of jobs. –histogram-buckets [buckets…] - Define what buckets to collect from histograms. (Default: [ “+Inf”, “10”, “5”, “2.5”, “2.5”, “1”, “0.5”, “0.25”, “0.1”, “0.05”, “0.025”, “0.01”, “0.005” ])

Environment variables:

WM_TOKEN - The token to use when talking to the API server. Preferred over manual login. WM_WORKSPACE - The workspace to spawn scripts from.

This will run a simple benchmark against localhost (the default admin email + password are set above), all execution is done in the “bench” workspace (as set via --workspace).

Metrics are exported to JSON will only include mean & stdev, histograms get one entry for each bucket. CSV will include a full list of all values scraped.

NOOP jobs benchmark

A specific benchmark creating a set of NOOP jobs all at once in windmill is also available. in benchmarks_noop.ts

You can build it locally with:

deno install -A benchmarks_noop.ts

and then

benchmarks_noop -e admin@windmill.dev -p changeme --host YOUR_HOST

By default it creates 10000 jobs in Windmill in a single batch, but this is parametrizable.