Practical overview
When it fits
Use Flood when evaluating how EVM nodes respond to controlled RPC request patterns, or when comparing performance across nodes and configurations.
Who it is for
- Developers and infrastructure teams evaluating EVM node performance.
- Teams comparing node clients, hardware or software configurations, and RPC providers.
Documented uses
- Apply controlled request loads to an EVM node’s RPC endpoint.
- Measure throughput, latency percentiles and error rates for RPC methods.
- Compare node or provider results and generate shareable reports.
- Use differential tests to check whether two nodes return matching responses.
Requirements & limits
- The documented CLI installation requires Python 3.7 or later and Vegeta on the system path; a Docker image is also offered.
- Tests can run from the local machine or a remote process, with remote runs requiring login credentials and routing details.
- Flood measures load-related performance; its differential-test mode instead compares responses between two nodes.
- Runs save parameters and results, including metrics, figures and summaries, to an output directory.
Check current requirements in the official documentation. Source-based guidance does not mean OpenViST has run or independently tested this project.
Install Flood for RPC benchmarking
Prepare the documented Python CLI installation and confirm the command is available.
Before you start
- Python 3.7 or later
- Vegeta installed and available on the system path
- pip
Steps
Install Vegeta for your operating system and ensure it is on your path.
Install Flood with the command below.
pip install paradigm-floodRun
flood helpto display the command help; if the executable is not on your path, the README documents the command below as an alternative.python3 -m flood
Expected outcome
Flood is installed and its help output can be accessed from the terminal.
Guide limitations
- This guide covers installation and help access only, not a completed benchmark run.
- Docker is also documented as an alternative, but its setup steps are not included here.
Sources & review
Source record details
- Source availability
- Active
- Sources checked
- 14 October 2026
- Original website title
- paradigmxyz/flood · Official homepage title · retained in its source language

