100% CPU useage seems to be back with 0.9.1.1

Dr_Grip · March 27, 2009

since the update CPU usage goes to 100% after a few minutes of seeding (no downloads right now). At the same time, the upload rate drops to zero. This happens every time i start utorrent since the auto update, unlike the "old" 100% CPU bug, which -at least on my system- only occured randomly.

Hardware: 2.2 GHz MacBook, 1GB Ram

System: 10.5.6, all updates installed

The relevant parts of the activity monitor analysis follow:

Sampling process 2400 for 3 seconds with 1 millisecond of run time between samplesSampling completed, processing symbols...Analysis of sampling uTorrent (pid 2400) every 1 millisecondCall graph:    1868 Thread_2507      1868 0x23c6        1868 NSApplicationMain          1868 -[NSApplication run]            1868 -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:]              1868 _DPSNextEvent                1868 BlockUntilNextEventMatchingListInMode                  1868 ReceiveNextEventCommon                    1868 RunCurrentEventLoopInMode                      1868 CFRunLoopRunInMode                        1868 CFRunLoopRunSpecific                          1839 mach_msg                            1839 mach_msg_trap                              1839 mach_msg_trap                          15 __CFRunLoopDoObservers                            15 _handleWindowNeedsDisplay                              15 -[NSWindow displayIfNeeded]                                15 -[NSView displayIfNeeded]                                  15 -[NSView _displayRectIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:]                                    15 -[NSThemeFrame _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView:]                                      15 -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView:]                                        14 -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView:]                                          14 -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView:]                                            14 -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView:]                                              14 -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView:]                                                12 -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView:]                                                  11 -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView:]                                                    9 -[NSView _drawRect:clip:]                                                      9 -[NSTableView drawRect:]                                                        9 -[NSOutlineView drawRowIndexes:clipRect:]                                                          9 -[NSTableView drawRowIndexes:clipRect:]                                                            8 -[NSTableView drawRow:clipRect:]                                                              8 -[NSOutlineView _drawContentsAtRow:column:withCellFrame:]                                                                8 -[NSTableView _drawContentsAtRow:column:withCellFrame:]                                                                  3 -[NSTableView preparedCellAtColumn:row:]                                                                    2 -[NSActionCell setObjectValue:]                                                                      2 -[NSCell setObjectValue:]                                                                        2 -[NSCell _setContents:]                                                                          2 0x5eea8                                                                            2 -[NSObject copy]                                                                              2 -[NSImage copyWithZone:]                                                                                2 -[NSImage _expandJustEnoughToLoadRepProperties]                                                                                  2 -[NSImage _expandRep:expandImageContentNow:]                                                                                    2 getattrlist$UNIX2003                                                                                      2 getattrlist$UNIX2003

EDIT: I can post a full activity monitor log when needed.

eashmore · March 27, 2009

Same problem here.

I wasn't getting 100% CPU usage in 0.9.1.

BadgerRich · March 27, 2009

I just updated to the new version of uTorrent, Version 0.9.1.1. Before when uTorrent was in the background the processor never got hit more than 10-15%. Now as soon as I open uTorrent my processor is getting hit 99%. Using istat menu to look at processor use. Is anyone else experiencing this problem? Is there anyway to uninstall the update?

Here's the sample:

http://pastebin.com/m1a6149b1

lmfb · March 27, 2009

Have you cleaned out your settings?

See -

http://forum.utorrent.com/viewtopic.php?pid=401656#p401656

and

http://forum.utorrent.com/viewtopic.php?id=51398

theron · March 27, 2009

Interesting. Could you upload the full dumps to a hosting site and put the link here so I can pull it down and check it out? I haven't been able to reproduce this since the last fixes went in to 0.9.1.1. Also if moving your setup/config files out of the way fixes the problem please upload a copy of those too with your process dump and I'll try to reproduce this. Thanks.

NoOneButMe · March 27, 2009

Take a sample before you clear out your settings. Open Activity Monitor, select uTorrent and hit 'Sample' in the bar on the top. Then pastebin the sample and paste the link to it here.

Without the sample, its much harder for the devs to fix the bugs; the sample shows what uTorrent is having the cpu do.

/edit: merged two threads about the same issue for clarity when browsing / finding issues.

JoshMock · March 28, 2009

I was having the same problem. Took a sample, posted here:

http://joshmock.com/images/uTorrent.txt

Dr_Grip · March 28, 2009

Here's the full sample from Activity Monitor...

http://pastebin.com/m1cc10e30

it's 2:30am over here, will update this post tomorrow with config file (re)moving results...

Sanctuaryu · March 28, 2009

100% CPU problem too. Happens randomly, sometimes after launch, sometimes after a few minutes of use.

MacBook Core 2 Duo 2 GHz, Leopard 10.5.6.

Here's the sample:

http://pastebin.com/m60812f3

erume · March 28, 2009

A had the same issue. Started occurring regularly after the update. Took only a few minutes after relaunching the app for the CPU usage to hit 100%+

Took the prefs and a sample of the process through Activity Monitor and zipped them - http://stashbox.org/467430/utorrentprefs%2Bsample.zip

Issue seems to be resolved at the moment though...

edit: Alright, my bad. Hit 100% again, once a torrent finished downloading and started seeding.

RySean · March 28, 2009

I'm having the same issue. Also, it makes my CPU run at 30 degrees higher. Or at least, that's what Temperature Monitor is showing me.

LaRRinco · March 29, 2009

Same problem here, one of the cores is always at 99%. And it makes the system veryyyyy slowwww (Just one download).

RySean · March 30, 2009

The only fix I found isn't really a fix... I run Windows using Parallels, and downloaded uTorrent for Windows and left it running that way. Lol, it slows down the computer a bit, but not nearly as much as the latest Mac uTorrent.

Dr_Grip · March 30, 2009

EDIT: I just updated to 14940: The time it takes until the described behaviour kicks in is up to 15 or so minutes... but after that, UL and DL rate still drop to zero while CPU load goes to 100%.

Activity monitor sample at:

http://pastebin.com/m7fa2d7fd

EDIT again: Removing config files and re-adding all .torrents did not help.

kropotov · March 30, 2009

Same problem 14940: One core CPU load goes to 100%. connection drops to zero. appr. every 15 minutes. need to restart.

Macbook Air 1,6, Leo 10.5.6

where i can get old version?

Sampling process 1641 for 3 seconds with 1 millisecond of run time between samples

Sampling completed, processing symbols...

Analysis of sampling uTorrent (pid 1641) every 1 millisecond

Call graph:

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1625 0x2376

1625 NSApplicationMain

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1625 -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:]

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1 0x53cae

40 0x374a2

30 0x6bb03

29 gettimeofday

29 __gettimeofday

17 __nanotime

12 __gettimeofday

1 __gettimeofday

5 0x6bae9

2 0x6bafb

1 0x6bae8

1 0x6bb91

1 0x6bb9e

39 0x37527

38 0x53bf2

35 0x6bb03

32 gettimeofday

30 __gettimeofday

16 __nanotime

14 __gettimeofday

2 gettimeofday

2 __gettimeofday

1 dyld_stub___commpage_gettimeofday

1 0x6bae8

1 0x6bb14

1 0x6bb33

1 0x53c6a

32 0x374ed

22 pthread_mutex_lock

9 __spin_lock

1 spin_lock

31 0x37466

25 0x6bb03

21 gettimeofday

21 __gettimeofday

12 __gettimeofday

9 __nanotime

3 __gettimeofday

1 dyld_stub___commpage_gettimeofday

2 0x6bae8

1 0x6bb0d

1 0x6bb1d

1 0x6bb2a

1 0x6bba1

12 0x375e9

7 pthread_mutex_unlock

4 pthread_mutex_unlock

3 semaphore_signal_trap

4 __spin_lock

1 spin_lock

8 0x37491

2 0x375ef

1 0x3749d

1 0x3750e

1 0x3751f

1 0x37522

1 0x375c4

1 0x375e4

1 dyld_stub_pthread_mutex_lock

1625 Thread_2b03

1625 thread_start

1625 _pthread_start

1625 __NSThread__main__

1625 -[NSThread main]

1625 kevent

Total number in stack (recursive counted multiple, when >=5):

10 __gettimeofday

9 -[NSView viewWillDraw]

7 -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView:]

6 _CFRelease

6 _pthread_start

6 objc_msgSend

6 thread_start

5 -[NSView _drawRect:clip:]

5 -[NSView _recursiveDisplayAllDirtyWithLockFocus:visRect:]

5 __nanotime

5 argb32_mark

5 gettimeofday

Sort by top of stack, same collapsed (when >= 5):

__semwait_signal 4875

mach_msg_trap 3193

kevent 2511

__gettimeofday 89

__nanotime 82

0x32da7 64

fegetenv 46

fesetenv 43

0x32db6 24

0x32da3 22

pthread_mutex_lock 22

0x32d74 16

__spin_lock 15

gettimeofday 14

0x3268d 13

0x36ef5 10

0x29219 8

0x37491 8

0x38331 8

_sysenter_trap 8

objc_msgSend 8

time 8

0x17f3b 7

0x2c91d 7

0x53be1 7

__commpage_gettimeofday 7

0x3f9f3 6

argb32_image_mark 6

0x18055 5

0x24cfb 5

0x3268a 5

0x6bae9 5

Sample analysis of process 1641 written to file /dev/stdout

kilobravo · March 30, 2009

I'm amazed there is no snotty response to this post like the one I received to mine about exactly the same problem. When I posted about this exact problem my post was closed with the following:

"c'mon man. Read a few posts before you post. Plenty of people are complaining about the same thing you are.

"has anyone experienced this?" you're just pointed out how you didn't even bother to read a few of the top threads in this forum, and that pisses off the mods and developers here."

Maybe you will all be pissing of the mighty with your posts? Good luck getting a resolution.

Dr_Grip · March 30, 2009

Dear kilobravo,

the snotty response was for opening a new thread instead of posting in this one, which, obviously, answers your question.

Not reading at least the topics of active threads to find an existing one on the same topic before opening a new one is considered bad behaviour on most boards, including this.

That said, the style of the reply you got was a bit less friendly than one might hope, but i guess on a "tech support" board like this you get too much unruly behaviour to still be friendly...

Give this guys a break, they are trying to help us!

@mod: this is OT. If you decide to remove kilobravos post, delete this with his.

kropotov · March 30, 2009

dear tech support,

again: where can i get old version?

Thank you beforehand for cooperation.

DreadWingKnight · March 30, 2009

kropotov - http://forum.utorrent.com/misc.php?action=rules

Old versions of µTorrent are unsupported. If you have an issue with an old version, upgrade before you post. We won't help you if you don't.

langdonalgar · March 30, 2009

I was getting the 100% CPU usage problem with 0.9.1.1, but after deleting the old .dat and .plist files, as per the trouble-shooting guide posted by the moderators, that problem cleared up. I just copied and pasted the code into the terminal and pressed enter after each line. If that doesn't work, I would also try appzapping and reinstalling utorrent. I still can't get a green light on connectivity, but that might also be a problem with my router (linksys WRT54G). If anyone knows of a thread dealing with a mac user trying to port forward on this router and could point me to it, it would be greatly appreciated.

theron · March 30, 2009

I have copies of your process samples as well as the zip file with both the dump and the configuration files (thanks erume). I will go through them and see if I can't nail down the problem.

Dr_Grip · March 31, 2009

Hey theron,

thx for your effort!

@langdonalgar: Sadly, this did not work for me :-(

langdonalgar · March 31, 2009

@ Dr. Grip: I lied a bit. The 100% CPU issue came back, though it only seems to happen intermittently now.

My connectivity is consistently red, though I've been getting up to 100 kb/s download speeds, probably due to a really close peer (am I right about this?). It seems like when I've got a fairly good download speed going for whatever reason, utorrent functions normally and doesn't use a lot of resources, but when I'm getting terrible dl speeds it starts to ramp up the CPU usage. I can't be sure though as I don't watch my torrent speeds 24/7.

Yale · April 1, 2009

I too am getting the 100% CPU usage issue and the 0/0 dl/ul issue after a while(I didn't time it). I followed the steps in trouble shooting guide and they did not solve the issue. By now I'm certain the developers know it isn't one guy who can't figure out how to fix some bug that is locally occurring. I look forward to seeing feedback from the devel team (not feedback to me, just the bug) .

megatrebuchet · April 2, 2009

not that this contributes much .. but yeah 0.9.1.1 (14940) does do 100% usage after 5 minutes of running... kinda disappointing .. though I am sure it should be fixed soon

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100% CPU useage seems to be back with 0.9.1.1

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