False download speed spikes in the speed graph #6454

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opened 2026-02-21 18:25:43 -05:00 by deekerman · 1 comment

deekerman commented

2026-02-21 18:25:43 -05:00

Owner

Originally created by @redfellow on GitHub (Nov 27, 2017).

qBittorrent version and Operating System

Version / OS: 4.0.1 & Windows 10

What is the problem

Download speed according to built in speed graph spikes and makes the graph unusable for a long time

What is the expected behavior

No spikes

Steps to reproduce

High I/O on drives from other apps while downloading multiple torrents on high speed - I/O locks the system for a few seconds which Qbittorrent calculates as "no changes" and then all the data downloaded during the lockup is written as a huge spike, sometimes going over 200-300Mbps

Extra info(if any)

Originally created by @redfellow on GitHub (Nov 27, 2017). ### qBittorrent version and Operating System Version / OS: 4.0.1 & Windows 10 ### What is the problem Download speed according to built in speed graph spikes and makes the graph unusable for a long time ### What is the expected behavior No spikes ### Steps to reproduce High I/O on drives from other apps while downloading multiple torrents on high speed - I/O locks the system for a few seconds which Qbittorrent calculates as "no changes" and then all the data downloaded during the lockup is written as a huge spike, sometimes going over 200-300Mbps ### Extra info(if any) ![Example](https://vgy.me/2sbM7g.png)