RTX RAPID HDR - Pc RAM usage increases for every sdr to hdr conversion

TENCHI

I’m converting over hundred of 20 minute episodes from sdr to hdr. They are 1.4gb files 1080p. After about 50 converted episodes my pc freezes and I have to power on and off the computer. Before I powered off the pc I was able to get task manager up and notice my RAM memory was at 22gb usage out of my 32gb RAM. After restarting the pc I tried converting another 50 episodes. this time keeping an eye on the RAM. The RAM idle is at 7gb. As the episodes finish converting the RAM increases little by little. On average the ram was increasing by 500MB. By the end of 50 episodes my RAM is at 22gb out of 32gb. I removed all of the FINISHED file but that didn’t solve the problem. I waited an hour to see if it automatically go away but nope. Once I closed unifab my RAM went back to idle usage at 7gb.
I will have to convert in batches of 25 episodes and open and close unifab each time to prevent my pc from freezing. By the way the RAM issue is happening on unifab version 3 and 4 and 5

Also I have a suggestion. Unifab saves a 1.5Mb bitmap screenshot picture for every episode I convert. When I first noticed this after a few months I had a couple of gigabytes of useless .bmp files. Can u make the software auto delete those files when the program closes. So far I just been deleting the TEMP folder

Adventurer

Hello, thank you for providing such detailed testing results and resource usage information.

Regarding the issue you mentioned, where the RAM usage gradually increases as completed tasks accumulate when batch converting a large number of 1080p SDR videos to HDR, and does not automatically decrease after removing the finished files or waiting for some time, only returning to the idle level after closing UniFab, we understand that this affects the stability of long batch conversions.

Based on your description, this behavior may be related to memory release, cache management, or temporary resource cleanup after batch tasks are completed. We need to further confirm it based on the logs and specific task information.

To help our technical team investigate the issue, please provide the following information:

The specific UniFab version you are currently using
Your Windows system version, CPU, graphics card model, graphics driver version, and RAM capacity
The specific parameter settings selected for SDR to HDR conversion
Screenshots showing RAM usage at the start of the task, after converting around 25 episodes, and after converting around 50 episodes
The UniFab log files after the issue occurs

The current workaround of converting in smaller batches and restarting UniFab can be used temporarily, but we will also forward this continuously increasing memory usage issue to our technical team for further analysis.

Regarding the .bmp screenshot files generated during conversion and accumulating over time, we will also organize your suggestion to “automatically clean up temporary screenshot files when closing the software / optimize TEMP file management” and forward it to our product team as a reference for future optimization.

For now, if these temporary files are taking up a large amount of disk space, you may continue manually cleaning the corresponding TEMP folder. Before deleting them, please make sure UniFab is not running any conversion tasks, to avoid affecting files that are still being processed.

Thank you for providing the specific batch conversion scenario and reproduction details. This is very helpful for us to investigate resource management issues and improve the temporary file cleanup mechanism.

TENCHI

window 11, amd 7950x, msi 5070, Driver 610.62, 32GB ram, unifab versioon 4.1.4.0

the computer freeze after batch converting has always been i problem since i first got your RTX RAPID HDR back in december. i think it was version 3 something. ever since then i have been doing small batches of 10 or so and closing the software each time. i never noticed the RAM usage until a week ago when i started experimenting by doing larger batches. i figured its been 6 months since i got your software. theres been alot of software updates. so “MAYBE” the issue got fixed.

anyways i think my problem is easy to replicate. just convert a few 20 minute episodes of whatever and you will see in task manager the RAMs continuous increase.