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Re: Suddenly downloads are stuttering
Posted: October 15th, 2023, 2:07 pm
by sander
Oh: which version of SABnzbd?
Any changes in that 2 days ago?
Firewall or virusscanner kicking in? You use Windows, after all.
Re: Suddenly downloads are stuttering
Posted: October 15th, 2023, 3:24 pm
by marklard
Soooooo it looks like it is a Windows Defender issue. As per Reddit user
If you're on Windows and downloading RAR files, try adding your SABnzbd Temporary Download Folder to the Defender Antivirus scanning exclusions. This same issue started happening to me a couple days ago after recent Windows updates added native RAR support. It seems to cause the virus scanner to go into overdrive while SABnzbd is downloading RAR files. Adding the exclusion immediately fixed the issue for me.
Re: Suddenly downloads are stuttering
Posted: October 15th, 2023, 3:47 pm
by sander
Windows and virusscanners ... always a recipe for fun!
Re: Suddenly downloads are stuttering
Posted: October 15th, 2023, 4:16 pm
by tomuse
A typical behavior for these performance drops is also this switch under Switches/Direct Unpack.
Turn it off and repeat the download. With many single SSDs, this can lead to noticeable performance drops.
This does not normally happen with a RAID 5/6 Volume.
Re: Suddenly downloads are stuttering
Posted: October 15th, 2023, 4:26 pm
by Vertigo1
marklard wrote: ↑October 15th, 2023, 3:24 pm
Soooooo it looks like it is a Windows Defender issue. As per Reddit user
If you're on Windows and downloading RAR files, try adding your SABnzbd Temporary Download Folder to the Defender Antivirus scanning exclusions. This same issue started happening to me a couple days ago after recent Windows updates added native RAR support. It seems to cause the virus scanner to go into overdrive while SABnzbd is downloading RAR files. Adding the exclusion immediately fixed the issue for me.
I love you!!
Just added the folder to the exclusions and bingo, solved the problem immediately!
Must have been a recent Defender update. ****** Microsoft - I had something similar a few weeks ago when a Defender update suddenly quarantined my Tor.exe file. Should have thought of this.
Re: Suddenly downloads are stuttering
Posted: October 15th, 2023, 5:46 pm
by marklard
Happy to help and thank you for your help as well Sander.