I’ve found a way to utterly ruin my computer’s performance: transferring large files via FTP (specifically, I use WinSCP with the transfer rate cap set to 8192 KB/s). I do not know the threshold, but I know it is >16 GB, as I transferred a 16 GB file via FTP without issue earlier today.
I have noticed, first after transferring a 27 GB file via FTP and more recently a 23 GB file, that the system slows down significantly during transfer and continues to do so long after the transfer ends, only being alleviated by rebooting. Chrome will randomly freeze, network connections will randomly drop (IRC, electron apps, Steam, browsers, etc), VLC will struggle to play a small WAV file, MMCs will take multiple minutes to load, etc. And it only gets worse - within a day, if I do not reboot, I will be faced with catastrophically bad performance, with even task manager taking upwards of 5 minutes to load, despite the system load as reported by task manager rarely being >30% on CPU, GPU, RAM, and all disks.
Does anyone have any idea why this happens? Is it just time to reinstall Windows?
Edit: specs, for those who might be wondering:
- Win 10 Pro x64, build 2004 (though this happened with 1909 as well)
- 64 GB RAM
- GTX 1070 Ti
- A mix of 3 SSDs and 1 HDD; the files were being saved to an HGST HDN726050ALE610 (5 TB HDD)
I haven’t tried unlimited speed in WinSCP because each time I’ve been watching a youtube video while transferring files and didn’t want that to get interrupted.