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abegreen
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Post subject: Generating h.265 preview image too heavy on CPU. Posted: October 13th, 2020, 7:13 pm |
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Joined: March 15th, 2020, 9:53 pm Posts: 91
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Hi,
ffmpg will use 100% of CPU by default.
In case of h.265 files, and especially large h.265 files, one image generation overloads whole server.
I tried to limit ffmpg to some number of cores, but every new process starts unlimited.
What can be done to limit CPU load for these processes?
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Freddy
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Post subject: Re: Generating h.265 preview image too heavy on CPU Posted: October 13th, 2020, 7:17 pm |
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Site Admin |
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Joined: March 10th, 2011, 11:14 pm Posts: 12666 Location: Earth
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Freddy
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Post subject: Re: Generating h.265 preview image too heavy on CPU. Posted: October 26th, 2020, 6:24 am |
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Site Admin |
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Joined: March 10th, 2011, 11:14 pm Posts: 12666 Location: Earth
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It really has nothing to do with h.265 in general.
Those are 8K very large resolution files. It needs more CPU it be able to process them.
You can set "Processes limit" to 1 in "Settings" -> "General". That would help a bit (since it would process one file at a time) or upgrade the CPU if you're dealing with large files constantly.
Edit: actually there is separate "threads" option for ffmpeg tool which does help (but then takes longer to process). I will add that option in "Settings" -> "Process" -> "Preview" for next update (1.71).
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