esnet/iperf

easily parseable real time output option

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#444 opened on Jul 23, 2016

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Help Wantedenhancementfeat:outputs

Description

Hi I made a GUI for iperf 2 in Powershell: https://github.com/ili101/PPerf

I want to add iperf 3 support but iperf 3 don't have a parseable real time output option

iperf 2 have CSV output iperf 3 have JSON output but it's only updates at the end

I don't think JSON can support real time updates because of it's structure, probably why you are updating it only at the end.

Can you add CSV support or something with similar functionality?

Thank you

Contributor guide

Tech stack
c
Domain
cliperformance
Issue type
feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
3-5 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
clear
Prerequisites
C programmingiperf output system knowledge
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
30
Research direction
Review iperf3's current output implementation in the src/iperf output.c file. Understand how JSON output is generated and sent at the end of a test. Compare with iperf2's CSV output that provides incremental updates. Consider implementing an incremental JSON format (JSON lines) or adding CSV support. Check any existing discussions in the comments for additional context (e.g., whether maintainers had concerns about JSON streaming). No linked PRs were found, so this is an open feature request.