Crazy amount of CPU usage when idle

[v3i1y]

System and IINA version:

• macOS
  10.14.1
• IINA
  0.0.15

Expected behavior:
Using very low CPU when paused or not playing.

Actual behavior:
Using 300% CPU and become unresponsive.

Steps to reproduce:
Play some videos or audios and pause. (I use IINA to play music and audios a lot, which might relate to the issue)

Sample
I see you requested for Sample Process in an old thread so I did that as well.
Sample of IINA.txt

[inflation]

Can you update to latest version and try again?

[v3i1y]

Isn't that already the latest version?

[inflation]

Sorry, I mean beta version, currently 1.0.0-rc.

[v3i1y]

Ok, I might need some time to see if it happens again. Thanks!

[lhc70000]

Could you provide the log files? You can enable logging in Preferences - Advanced, then restart IINA and reproduce this issue.

Please also try if 1.0.0-rc has this problem since a lot of changes have been made since 0.0.15.

[v3i1y]

I am using 1.0.0-rc

[v3i1y]

Sorry, I hit that by accident. I cannot reproduce it right now, I will post the log when it happens again.

[v3i1y]

Were you able to resolve the issue?

[xpader]

It's happend on my Macbook Air too, everytime when paly a video finished and IINA in idle state, THE IINA PROCESS use up 90% cpu, EVERYTIME.
I have update IINA to newest version 1.0.3, the issue still exists.

[sensibleish]

I am seeing this issue under Mac OS 10.15.4 and IINA 1.0.6 build 113. You get a maxed-out 100%-CPU thread. Steps to reproduce:

1. Launch IINA.
2. Open a video file.
3. Close the file.
4. Check Activity Monitor. IINA will be using 100% of a CPU.

I don't know if it'll help, but I'm attaching a sample of the IINA process in this state.
Sample of IINA.txt

[lhc70000]

@sensibleish

It stuck when trying to match local subtitles. While I think this issue has been resolved by #2531, it seems that there still remains some edge cases.

Would you mind sending me the log (you can enable logging in Preferences - Advanced)? Please note that the log might contain the filenames that IINA tried to match.

[sensibleish]

@lhc70000 I think I have narrowed the steps to reproduce. This seems to happen only when I open video files that are immediate children of a folder with a lot of items in it. It happens to be on a USB-connected spinning hard disk. The folder /Volumes/Garage/Media has about 140 children (mix of files and folders), but if you go through all subfolders there are 3600 files. When I open and close /Volumes/Garage/Media/movie.mp4, I see the high-CPU problem. The sub-folder /Volumes/Garage/Media/Show only has a few items. If I open and close a file from there, the problem does not occur. So it does make me suspect that there's some kind of inefficient file system scan happening.

Logs attached.
high-cpu-mpv.log
high-cpu-iina.log
normal-cpu-mpv.log
normal-cpu-iina.log