i just noticed my jdownloader had a huge cpu load
while loading just a few of 5 files with 2 threats per file.
Stopped, restarted and updated to latest update, still happening
1 file 2 threats already ~25% cpu load - 5 files and the system starts to hang because of so much cpu load

(this time i was grabbing share-online over premiumize.me)
noticed that it seemt "laggy" already a few days ago...

+ while i just post here another problem that happens for weeks and month now, when i update it doesnt restart jdownloader, i always have to manually start it again when using the integrated update function

Anyone noticed that to or any help avail for my problems?

Thx

[Jiaz]

Hi,
Can we do teamviewer session? Would like to see myself and do some tests.
What os? What system specs?
What Firewall/Av?

Windows 7 x64 system is: **External links are only visible to Support Staff****External links are only visible to Support Staff**
antivir is avira free antivir (never had problems with it)
i use windows 7 firefall controll, but jdownloader is "enable all" in it so it doesnt interfere

teamviewer sorry wont work, tried more than once. i'm on a crippled cable ipv6 line with bad "DS-Lite", cant forward ports and nothing, some things just dont work

thx for fast response
i could take some screenshots of cpu load on 1 file, 2files, etc

[Jiaz]

Does cpu usage reduce when you switch view(settings,linkgrabber, hide window)
Can you provide screenshot of you downloadlist (via email to support@jdownloader.org if you like) so I can see how many columns/what columns you have active.

Hi, cpu load stays when i switch colums, also on minimize or close to taskbar.
made a few screenshots already:
http://i.imgur.com/GkgJ209.jpg
http://i.imgur.com/YaNz7Rf.jpg
http://i.imgur.com/OxLLOim.jpg
http://i.imgur.com/I5BEzdy.jpg
http://i.imgur.com/y1CtcQF.jpg
http://i.imgur.com/GfjShTD.jpg

[Jiaz]

Wenn du auf den Linkgrabber wechselst, bleibt die CPU Last dann ebenfalls oben?
Ich würde wirklich gerne eine Teamviewer Session versuchen, Das Problem ist uns völlig unbekannt.

[raztoki]

can you please post a log from that session, How to post a log

if premiumize is sending data via HTTPS it would account for high CPU loads.

[Jiaz]

But not a complete core per download

ja, egal wohin ich wechsle oder minimiere
wir können teamviewer gerne nochmal probieren, war bisher immer nicht erfolgreich aber man weiß ja nie
habe die daten an die email geschickt muss ja nich jeder sehen

i have SSL eneabled on premiumize me, but i have it like that for (ages)

[raztoki]

https has always resulted in highloads for me, though of late (maybe 4-6+months) its higher than it used to be.

9Meg/sec https = 97%cpu (last image)

[Jiaz]

We did a teamviewer session, will so some tests locally

Just for further info, might be that ssl results in some more cpu load,
but i can do over 20mb/s (200mbit) and did those speeds since i have that line, so it worked at some point without hitting the 100%, cant tell when that changed, just noticed the cpu load today, i usally never check

[raztoki]

I assume jiaz did tests when he teamviewed, but encase he didn't. it would be interesting to compare http/https load differences.

[Jiaz]

Please uninstall your ulimiter (as this software sits on tcp level it can cause such issues) and restart and try again.I'm unable to reproduce this, even with 10 downloads and 10Gbit/s.
That would also explain why cpu stays high even when no JDownloader is visible.

Hi,
aus Verständnisgründen schreibe ich das mal lieber auf deutsch: Ich habe das selbe Problem. Seit ein paar Tagen kann ich nicht mehr als 2 Downloads mit je 2 Verbindungen starten (da selbst diese die CPU auf 30-40% jagen). Bei meinen üblichen 4-5 Downloads mit 3-4 Verbindungen kann ich nichts mehr machen. Alles hängt und ich bange nur ob der Bluescreen kommt oder nicht Es ändert sich durch nichts als die Reduzierung der Downloads resp. Verbindungen. Teamviewer session/ts/icq/etc pp bin ich auch gerne dabei (Admins können mir ja gerne ne Mail/pn mit Instruktionen zukommen lassen).

Mein spec:
CPU: AMD FX8320 (8x3,5GHz)
RAM: Crucial 1x8GB 1800MHz
GPU: AMD R9 280X
SSD: Samsung 840 Evo 256GB
HDD: WD 1TB 7200rpm
Netzteil: Thermaltake 620W

Ethernet: 200MBits~25MBs


Hier nen log mit 4 verschiedenen Downloadsessions (hoffe das is so richtig is mein erster jd log^^): 25.02.15 15.01.29to23.02.15 11.56.00 jdlog://6465986763241/

[Jiaz]

Würde gerne Teamviewer machen. Schreib mir einfach per mail an support@jdownloader.org
Ulimiter oder so nutzt du nicht? Irgendwelche firewall?

Mail is raus. teamspeak evtl noch dazu? und habe kein Ulimiter oder sowas und Firewall habsch auch net. Antivirenprogramm is der Windoofdefender von Win 8.1 die Windoof Firewall is aus.
Edit: Ebenfalls premiumize.me

[Jiaz]

Ursache gefunden. AES GCM Modus für https, gibt da ne regression in Java (bug). Ich schau ob man da was machen kann ohne auf Update warten zu müssen

[Jiaz]

Ist ein Java bug, sollte mit 1.8 Update 60 (noch beta) fixed sein
bugs.openjdk.java.net/browse/JDK-8069072
Ich versuch nen Workaround für kleinere Versionen

[Jiaz]

Workaround geht gleich lvie, Feedback wäre nett

[Jiaz]

ist Live

Geilo !!!!!!!!

24mb/s bei 14% Cpu

Vielen Dank für die schnelle Reaktion, jetzt machts wieder Spass

[Jiaz]

Danke fürs Feedback Und sorry das ich erst auf andere Sachen geschlossen habe, aber dank Teamviewer und JVisualVM war der Java-Bug dann auch schon gefunden

Just wanted to give feedback:
After the update(s) from yesterday evening (2015-02-25) my JD2 became nearly unuseable after a time; high CPU load, excessive memory usage. My PC has 6-core CPU @3.2 GHz and 16GB of RAM so it still was usable but very laggy. After some time JDownloader.exe became unresponsive and crashed.
The problem occured when I "clicked around" in JD2, that is, switching between tabs, opening and closing settings and so on. Couldn't recognize a single trigger for that behaviour.

With todays (2015-02-26) update the problems were gone. JD2 now makes fun again. Thank you for fixing that so quickly!

Regards,
Steve

[Jiaz]

It was not caused by JDownloader. The server you've downloaded from changed the order of its ssl ciphers and in combination with a java bug -> huge performance issue

Ok, thanks for the feedback.

That said, I have another problem that occured just an hour ago with the new update: JD2 now tries to unrar every single part of a package instead of the whole package after finishing it. I'll try to restart.

[Jiaz]

Im already working on that

Solved!