[Student im ersten Jahr]

Two program instances! It looks like a bug. Two processes. This is what happens if JD2 is very busy and the first process takes a long time to finish and you try to restart JD2 during this time. If just the download lists are large:
1,000,000 links (size 400 MB of CFG package).
Each package has an average of 600 - 700 links.

I think there should be a "lock" that prevents JD2 from starting until the process is fully end/terminated.
It may take a few minutes to complete END the process javaw.exe because I have large CFG packages (DownloadList).

https://postimg.cc/LgPS4Htd

Log:
Password 12345
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[pspzockerscene]

Which launcher are you using?
Which firewall/AV scanner are you using?

While installing updates there can be two instances for a short time.
It sounds as if your JD doesn't have enough memory.
Please contact us again via: support@jdownloader.org.

-psp-

[Student im ersten Jahr]

I set up Xmx11G
I think that's enough.
About Jownlaoder: Usage: 4.93 GB - Allocated: 8.59 GB - Max: 9.78 GB

Downloading files of several kilobytes (little size) uses up to 100% CPU


The RAM reduction can be reduced twice if I set: Remove finished download: when package is ready
Remove finished download: immediately (use high RAM) I/O issue
**External links are only visible to Support Staff****External links are only visible to Support Staff**

My Windows firewall/Bitdefender is turned off

[pspzockerscene]

Originally Posted by Student im ersten Jahr

The RAM reduction can be reduced twice if I set: Remove finished download: when package is ready

Of course! the less entries the list has, the less memory it requires.

Originally Posted by Student im ersten Jahr

Remove finished download: immediately (use high RAM) I/O issue

What do you expect? Of course it will result in high cpu/io when you have 1 mio links in list
and JDownloader has to write changed list to disk after each download!
Increase DownloadController.maximumsavedelay and DownloadController.minimumsavedelay to delay writing to disk even further. default value is min 5 secs after last change and max 60 secs after last change e.g. change them to 5 mins or higher.

-psp-

[Student im ersten Jahr]

Everything seems to be fine, the processor power has decreased.

**External links are only visible to Support Staff****External links are only visible to Support Staff**

[Student im ersten Jahr]

What's going on?
Why does JD2 sometimes run as two instances (identical duplicates!)
I run the program normally (mouse double click) with the extension "*.jar"
Downloader.jar