Decreased speed with more downloads

General support for problems installing or using Deluge
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Newguy025
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Joined: Sun Jul 17, 2016 4:27 am

Decreased speed with more downloads

Post by Newguy025 »

Hello,

I am getting drastically decreased speeds when adding more downloads.
It happens even with just 2 downloads, and with the download locations on different drives.

I did 2 tests with different torrents:
With 1 download (12 connections) I was getting 3 MB/s.
With 2 downloads (24 connections) I was getting 1 MB/s each.

With 1 download (9 connections) I was getting 5-6 MB/s.
With 2 downloads (20 connections) I was getting 2-3 MB/s each.

It scales with different speeds, so I could have a 500 KB/s cut as well. With more than 2 downloads the speeds get reduced even further.

I have had single download as high as 40 MB/s, so I don't think it's a bandwith issue.
Tried the default Bandwith settings, peers and seeders connections remained unchanged (in the tests above).

Setup: i5 8400, B360, 5 HDD's via SATA3 (2 SSD's+3 platter) (with 1 SSD for Deluge download only), Win10x64. Fibre connection > router > lan cable > 1GB ethernet port.
These do not make any difference on or off, but Zone Alarm as firewall, Avast AV.
Deluge 2.0b1, 512 cache (16 blocks) with 60 seconds expiry, no port forwarding.
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