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Old 16.10.2020, 14:27
Etshy Etshy is offline
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Default Jdownloader cause "System" process high CPU usage

Since a few days ago and the latest update, when JDownloader download it make the "System" process go high CPU usage and make my PC freeze a bit.

And the faster I download, the higher CPU usage. Downloading at about 80-90 MB/s made my System process go to about 60% usage.

For example right, I download at 3-4 MB/s and my system process is at 2-3% (normally less than 1%)

I happens only after the lastest update few days ago (or more like, I only noticed it making my pc freeze since the latest update)

Here is a link for a screenshot of the about popup for information
https://i.imgur.com/kDip89P.png

If a dump log is necessary, let me know how to do it, I don't remember how to generate it.
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  #2  
Old 16.10.2020, 16:01
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Jiaz Jiaz is offline
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Most likely caused by AES GCM Cipher and old Java Version, see https://support.jdownloader.org/Know...ng-downloading
Download/install JDownloader with newer Java Version, see
https://jdownloader.org/jdownloader2
Backup your complete cfg folder from your current installation and then restore/replace it over new cfg. So all settings/links/accounts are kept. Then it should be fine
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Old 04.11.2020, 22:06
Etshy Etshy is offline
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Hey What's the difference between the two installer Java 1.8 and java 11 ?

I don't know a thing about JAVA and the more I search about the more I'm confused ... ^^'

When i do a "java -version" in a CMD I got "java version "15.0.1" 2020-10-20" but after updating java via the Windows control panel I have this in revo app list : "Java 8 update 271"

What's the "best" version of jDownloader ?


Edit : uninstalled and re-installed the "java 11" version and now I have both Jdownloader AND system that takes high CPU (both 25/40% so I'm about at 80% CPU usage), downloading at 80MB/s in average (if that matters

Last edited by Etshy; 04.11.2020 at 22:14.
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Old 05.11.2020, 11:30
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Jiaz Jiaz is offline
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Check about dialog of JDownloader, it shows what Java is in use. by default it will prefer its own bundled java in jre/java folder within your JDownloader folder.
System cpu usage doesn't come from Java, it comes from firewall/AV/drivers/system.
80 Mbyte/s of course will cause CPU usage or what do you expect? You have 80 Mbyte/s Network Stream + HTTPs decryption + writing to disk + much more other stuff. CPU usage sounds normal to me.
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