RAM usage increases overtime while working on the project

[Imad_Saddik]

Problem

Hi everyone,

I have a question about memory usage. I have seen a lot of threads about this already, but wanted to share my experience too.

Previously, I was using Shotcut with 16GB of RAM. Working with big projects usually consumed 80% of my RAM, but it was OK. The memory warning kept appearing multiple times, and I just clicked wait to ignore it.

Now, I added 16GB of RAM to my laptop. Today, I was working on a 60 minutes video. I was not doing a lot of editing, I was just cleaning the video. I was surprised to see that Shotcut is consuming 25GB of RAM.

It seems that it kept increasing slowly while working on the project. Restarting Shotcut helps release memory, but the memory usage will keep growing again while working on the project.

I am aware that this guide exist:

How to Reduce Memory Usage

Here are ways to reduce the memory usage in general: Save and restart Shotcut Close other browser tabs. Close other applications. Reboot (does all of the above). Here are ways to reduce the memory usage of your project: Reduce the resolution of the Video Mode. Reduce the number of tracks. The number of tracks will increase the amount of caching to prevent files from being closed and reopened repeatedly from one frame to the next. Here are some ways to reduce the memory usage while editing: …

I am just curious about the memory usage and would like to know why it increases overtime.

Software, OS, and hardware information

Shotcut

Version 25.08.16 on:

Hardware

• Hardware Model: ASUSTeK COMPUTER INC. ROG Strix G614JI_G614JI
• Memory: 32.0 GiB
• Processor: 13th Gen Intel® Core™ i7-13650HX × 20
• Graphics: Intel® Graphics (RPL-S)
• Graphics 1: NVIDIA Corporation AD106M [GeForce RTX 4070 Max-Q / Mobile]
• Disk Capacity: 1.0 TB

OS

• Firmware Version: G614JI.331
• OS Name: Ubuntu 24.04.3 LTS
• OS Build: (null)
• OS Type: 64-bit
• GNOME Version: 46
• Windowing System: X11
• Kernel Version: Linux 6.11.0-29-generic