info_tfgrid/collections/documentation/developers/internals/zos/performance/iperf.md

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<h1> IPerf </h1>
<h2>Table of Contents</h2>
- [Overview](#overview)
- [Configuration](#configuration)
- [Details](#details)
- [Result Sample](#result-sample)
***
## Overview
The `iperf` package is designed to facilitate network performance testing using the `iperf3` tool. with both UDP and TCP over IPv4 and IPv6.
## Configuration
- Name: `iperf`
- Schedule: 4 times a day
- Jitter: 20 min
## Details
- The package using the iperf binary to examine network performance under different conditions.
- It randomly fetch PublicConfig data for randomly public nodes on the chain + all public node from free farm. These nodes serve as the targets for the iperf tests.
- For each node, it run the test with 4 times. through (UDP/TCP) using both node IPs (v4/v6)
- result will be a slice of all public node report (4 for each) each one will include:
```
UploadSpeed: Upload speed (in bits per second).
DownloadSpeed: Download speed (in bits per second).
NodeID: ID of the node where the test was conducted.
NodeIpv4: IPv4 address of the node.
TestType: Type of the test (TCP or UDP).
Error: Any error encountered during the test.
CpuReport: CPU utilization report (in percentage).
```
## Result Sample
```json
{
"description": "Test public nodes network performance with both UDP and TCP over IPv4 and IPv6",
"name": "iperf",
"result": [
{
"cpu_report": {
"host_system": 2.4433388913571044,
"host_total": 3.542919199613454,
"host_user": 1.0996094859359695,
"remote_system": 0.24430594945859846,
"remote_total": 0.3854457128784448,
"remote_user": 0.14115962407747246
},
"download_speed": 1041274.4792242317,
"error": "",
"node_id": 124,
"node_ip": "88.99.30.200",
"test_type": "tcp",
"upload_speed": 1048549.3668460822
},
{
"cpu_report": {
"host_system": 0,
"host_total": 0,
"host_user": 0,
"remote_system": 0,
"remote_total": 0,
"remote_user": 0
},
"download_speed": 0,
"error": "unable to connect to server - server may have stopped running or use a different port, firewall issue, etc.: Network unreachable",
"node_id": 124,
"node_ip": "2a01:4f8:10a:710::2",
"test_type": "tcp",
"upload_speed": 0
}
],
"timestamp": 1700507035
}
```