The problem is probably caused by the nature of p2p shield.
its simple to make Avast ignore uTorrent in the P2P shield, but for me as I dont use any other P2P software, its useless doing that. it might even be that it handles poorly hundreds of active connections, as Ive set uTorrent to use a global limit of 800 active, 200 active per torrent and max 50 half-open connections (on Win2K here).Īnyhows, Ill contact Avast and ask them about this you shure you dont mean manually make Avast ignore µTorrent?Īs said above, µTorrent is in this list of known P2P list, and it is guarded by default, but this shield doesnt work properly as it both limits the downloadspeed and leads to chocking the uploadspeed on a regular basis.
it seems to me that this isnt any problem running a single torrent or two, but when I try to download several torrents this effect kicks in. it as if Avast tries to save up buffers with data it can scan and when this buffer is filled up Avast stops the data flow while it scans what it allready had recieved, giving this odd behaviour in upload/download speeds. how they listen to the traffic I dont know, most likely by acting as a firewall but it seems to me that Avast does things wrong.
Stopping Avast's P2P shield and this behaviour stops right away and as a little bonus my downloads went think Avast detects P2P program is by task/exe name, and µTorrent is allready in Avast's list of known P2P programs. To me it seems like it is Avast's P2P shield which is designed to scan in/outgoing transmissions in known P2P clients and protect the users from downloading malware, trojans and viruses is the culprit of this odd behaviour, as Ive witnessed that Avast's scanner gobs up to 100% cpu usage the moment the upload flatlines and stops the heavy cpu usage when uploads kick in again. This start and stop seems to happen at a regular pace on every minute. now when the upload stops the download speeds skyrockets to only drop down again when the upload kicks in again, leaving a lovely spike in speed loggers. the download and upload seems to be linked yielding equal download and upload speeds, and then it starts where the upload suddenly stops for a few seconds before it resumes. What happens is that after a while downloading, mainly with many active torrents, the download and upload speeds start to act strange. So instead, Ill post here a heads up for those of you who use µTorrent and the Avast Antivirus program. (I was typing quite a long post here about my really strange upload/download speeds, but before I could finish it up, I discovered what was causing it)