sabredog Posted January 31, 2006 Report Share Posted January 31, 2006 I made the switch to uTorrent when version 1.0 was released and have been a pretty happy camper until recently. This last month after upgrading to 1.4 I have been experiencing regular 100% CPU spikes. If I go back to 1.2.2, the spikes still occur.I have read the FAQ and many posts here about this issue but cannot resolve the problem at this stage. PC SpecsP4-2.8Ghz 756Mb RAMWinXP SP2Netgear DG834G RouterMcafee 2005 (AV only)PG240Gb/200Gb HDDA test of several things, plus a test firing of uTorrent 1.4 on my Duron dual boot (McAfee AV 2004, 756mb RAM has resulted in a clearing of the mud so to speak.The Duron shows a steady CPU use of 3-6% on a sub 350mb torrent.Duron SpecsDuron 1.3Ghz 756Mb RAMWinXP SP2(same router) LANMcafee 2004 (AV only)20Gb HDDMy P4 main use PC running uTorrent 1.4 (McAfee AV 2005, PG2 and 756mb RAM) has a CPU use of 6-20% with a 600mb torrent but as soon as a 1gb+ file is added to the mix, CPU use spikes 100% on a regular interval, presumably as the cache is written to the HDD (all DMA).DHT is active and if shut off, has no effect.I am rapidly coming to the conclusion that Utorrent simply cannot cope with 1GB+ files. Certainly on this machine. I will test the Duron shortly with a 1GB+ file to see if that gives the same spikes.This spiking as mentioned before has only recently begun occurring on my P4 so I am at a loss to work out what has caused this issue.Anyone else have the same issue with larger files and is this perhaps a correct assumption?I really want to continue using uTorrent! Link to comment Share on other sites More sharing options...
Cloudhurler Posted January 31, 2006 Report Share Posted January 31, 2006 I've DLed a couple of 4Gb+ isos with µT with no problem, so I guess the problem lies with your particular configuration.Might a network time out or a disk overload (I noticed you have only one HD per PC) be the issue ? Link to comment Share on other sites More sharing options...
sabredog Posted January 31, 2006 Author Report Share Posted January 31, 2006 Both PC's have two HDD'sP4 40Gb/200GbDuron 20Gb/20GbI noticed whilst using Process Explorer that SH.EXE under the uTorrent header appears during the spikes. Any ideas why and how to fix?This has become an issue over the last month, I have dowloaded a heap of 8Gb files with no issues previously.The Duron is spiking at 56% which is a lot better than 100% Link to comment Share on other sites More sharing options...
Firon Posted January 31, 2006 Report Share Posted January 31, 2006 I'm dling 40GB of torrents (4 are about 8-9GB each), so nope. Large torrents work fine.What's SH.EXE? That's not a µT process. I bet it's the anti-virus. Link to comment Share on other sites More sharing options...
sabredog Posted January 31, 2006 Author Report Share Posted January 31, 2006 I did disable the AV. I will try that again and see if it the culprit. Google says it is a shell command.Under SH.EXE Cscript.exe runshttp://www.microsoft.com/resources/documentation/windows/xp/all/proddocs/en-us/cscript_overview.mspxWierd Link to comment Share on other sites More sharing options...
1c3d0g Posted January 31, 2006 Report Share Posted January 31, 2006 ...sounds like some kind of a Worm/Virus to me... :/You have a beefier PC than I do (P4C 2.6 GHz, 512 MB RAM), and I've downloaded 4.3 GB+ torrents before, so I'm pretty confident it's not µTorrent causing the excessive CPU usage. Something else is draining your reources. :|1.) Dump McAfee, use ClamWin. Update it and scan everything, and I do mean EVERYTHING.2.) I hope you're already familiar with Ad-Aware, Spybot S&D and SpywareBlaster, if not, download and install them A.S.A.P.3.) DMA is enabled on all your drives, right? Link to comment Share on other sites More sharing options...
sabredog Posted January 31, 2006 Author Report Share Posted January 31, 2006 I suspected that but have not detected a virus whatsoever.I also run Ad-Aware and Spybot regularly. All my drives are DMA enabled as wellThe CPU spiking only occurs whilst running uTorrent.edit: hmmm, seems to be caused by torrents from one particular site that are over 1GB in size. Shut those down and no spikes whilst two torrents (1.4Gb and 600Mb) are active. Link to comment Share on other sites More sharing options...
1c3d0g Posted January 31, 2006 Report Share Posted January 31, 2006 /me scratches head...odd. :/ Link to comment Share on other sites More sharing options...
Switeck Posted January 31, 2006 Report Share Posted January 31, 2006 How big are the torrent files?Does the "offending" one use real small or large chunks? Link to comment Share on other sites More sharing options...
sabredog Posted January 31, 2006 Author Report Share Posted January 31, 2006 Here are the size of the offending files.Torrent 1, 56Gb in size - 4Mb chunks, 76% completedTorrent 2, 3.48Gb in Size - 1Mb chunks, 53% completedShould I mention the site? Link to comment Share on other sites More sharing options...
Firon Posted January 31, 2006 Report Share Posted January 31, 2006 Can you try uninstalling the AV instead of disabling? Link to comment Share on other sites More sharing options...
sabredog Posted February 1, 2006 Author Report Share Posted February 1, 2006 I might well try that, although the AV seems to unloaded itself from memory.It is weird though, that this one sites torrents are causing the issue.I am getting a new PC next month and I am very tempted to install AVG instead of McAfee. So to further experiment I will remove McAfee from the Duron and install AVG to see how that goes. Link to comment Share on other sites More sharing options...
Rizzler Posted February 1, 2006 Report Share Posted February 1, 2006 hmmm this started happen to me today when i added 5 torrent that was 360 Mb each, and it comes nad goes. a 100% CPU Load. Link to comment Share on other sites More sharing options...
sabredog Posted February 4, 2006 Author Report Share Posted February 4, 2006 NopeMcafee does not seem to be causing the problem. I reckon the last round of M$ updates did it! Link to comment Share on other sites More sharing options...
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