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qBittorrent => Windows => Topic started by: brusantoli on March 07, 2019, 10:02:32 pm

Title: PC Very Slow
Post by: brusantoli on March 07, 2019, 10:02:32 pm
I have an intel core i5, 8gb of ram, internet 20mbps.

Recently, when downloading a torrent, my pc got very slow.

It had never happened before.

I read that it might be something cache related.

Could you kindly tell me how to solve the problem?
Title: Re: PC Very Slow
Post by: there on March 08, 2019, 01:11:39 am
if this had been happening over the past few days, MS has been releasing pre-update patches, and update patches too. they have been killing my PC, especially startups for nearly a week. Today just downloaded over 200mb update, Hope the event is over
Title: Re: PC Very Slow
Post by: brusantoli on March 08, 2019, 02:32:33 am
the strangest thing, is that it only gets slow when the download rate is high. somebody help me?
Title: Re: PC Very Slow
Post by: Switeck on March 08, 2019, 12:39:32 pm
I'd expect extreme PC slowness if there was either buggy network drivers, an overloaded (and poorly written) software firewall, or malware present.

Is qbittorrent.exe spiking to 1 full cpu core's max at the same time?

Incidentally, I also have an Intel i5 but I don't experience general PC slowness at high download speeds..."high" can mean only 1-10 megabytes/second download speeds while downloading torrents on the internet OR torrent LAN/local loopback tests that can run in excess of 100 megabytes/second.
Title: Re: PC Very Slow
Post by: brusantoli on March 08, 2019, 04:49:50 pm
I downloaded torrent 15 years ago.

this problem is recent

only while downloading

I'm going to install utorrent back to test
Title: Re: PC Very Slow
Post by: brusantoli on March 08, 2019, 05:15:46 pm
someone help me?

I downloaded uTorrent and the problem persists.

My operating system runs on an SSD.

I have an HD on which I save the files.

Title: Re: PC Very Slow
Post by: tiagocaridade on March 09, 2019, 01:02:00 am
I'm having the same problem.

When start downloading 1 cpu core spike to 100%
Title: Re: PC Very Slow
Post by: Switeck on March 09, 2019, 09:08:19 pm
Likely a software firewall is overloaded by qBitTorrent's network traffic.
Title: Re: PC Very Slow
Post by: brusantoli on March 11, 2019, 07:13:35 pm
the only firewall in my pc, is the windows native
Title: Re: PC Very Slow
Post by: Switeck on March 12, 2019, 05:14:24 am
Many AV products have 'lite' software firewalls built into them...and they are terrible at it, with very high CPU usage when network is busy.