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Weird untability while uploading... Hdd issues or noise on the line?

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Talix:
Hey

I am back after two weeks of getting settled in my new apartment (hehe, or just waiting for my internet ;p ) but now i have run into some problems. As the topic title says, my upload is unstable, and I can not figure out why.

It is not like I disconnect at all really, the upload just goes crazy low. And my browser and games all stay online. It only seems to be torrents having problems. I uploaded an image showing the weird stats in a 30 sec interval:



It could be one of two things tho:
1) I was told my connection might be unstable because of noise on the cables, and when i requested to get a special "profile" lowering pings (what it did was just dropping all packets without waiting for response) it theoretically should get even more unstable. This has, however, not been a problem as I have not yet lost connection to the internet.

2) It may be my faulty external hdd making problems. YES, it IS faulty, because about once a month i get the message telling me about broken sectors and i have to /chkdsk to correct them. I don't know if the harddrive could cause any problems in this direction, as it is a completely different issue i normally have.


Thx for coming this long ^^ Any ideas?


EDIT: Just got some new info from my isp - Even tho my upload goes down, my line is stable - I am NOT disconnecting!

Will it help me if i get a new hdd maybe?

K7IA:
What utorrent version are you using? I recall a bug in the forums for volatile bandwidth utilization in 1.9.x or higher.

If you are using a modem, it might be congested as well, that means packets are stuck in the buffer of the modem and are causing the transmission to break.

Also I am assuming you are not using wireless to connect to the modem.

Try uploading a big file (~100mb) to a filehost and observe your network activity graph from the Task Manager. (try not to use any other network related application during that time)

IO errors can cause problems as well, and they would show up in a torrent re-check.

The worst it p2p activity shaping I guess :)

Talix:

--- Quote from: enginarc on October 07, 2009, 09:41:51 AM ---What utorrent version are you using? I recall a bug in the forums for volatile bandwidth utilization in 1.9.x or higher.
--- End quote ---
I am using uTorrent 1.8.4, just updated itself today I think.


--- Quote from: enginarc on October 07, 2009, 09:41:51 AM ---IO errors can cause problems as well, and they would show up in a torrent re-check.
--- End quote ---
Yeah, those are the ones i get about once every month... Hell annoying! It it is not the issue I have now. I actually forced a recheck of all the 64 torrents over night - nothing came up.


--- Quote from: enginarc on October 07, 2009, 09:41:51 AM ---Try uploading a big file (~100mb) to a filehost and observe your network activity graph from the Task Manager. (try not to use any other network related application during that time)
--- End quote ---
Ok, I will try that now.


EDIT:Already now I can tell that the uploading is firm and stable. Constantly at about 220-230 kb/s - I copied an old 200 mb file to the root of the external hdd and uploaded it from there. 50% uploaded and still no issues.

Actually, the hdd seems kind of silent now... Usually, it makes some more noise when seeding. Could the stability issues have something to do with me having more than 60 torrent seeding at the same time?

K7IA:
Seeding 60 torrents concurrently on a problematic hdd, hımm.

In that case , increase your read buffer in utorrent (a) and seed one torrent (a popular one that can consume all your upload bandwidth).

(a) utorrent > preferences > advanced > disk cache

if you can seed at your peek after this, then I think you should better change your hdd :)

billlanam:
When your hdd has problem sectors it will retry reading a several times which can really slow things down when reading those sectors, try setting up chkdsk (or any other disk checking program) to scan the surface and move any data in suspicious sectors to supposely safe sectors.

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