Re: [Bitcoin-development] BitcoinQt eating 100% CPU
On Thursday, February 23, 2012 3:26:40 PM Gavin Andresen wrote: > If I recall correctly, the Mac Bitcoin-Qt does not register itself as a > bitcoin: URL handler, so the easiest fix for the 0.6 release would be to > just never launch the ipcThread #ifdef Q_WS_MAC Wouldn't that prevent the user from registering it? -- Virtualization & Cloud Management Using Capacity Planning Cloud computing makes use of virtualization - but cloud computing also focuses on allowing computing to be delivered as a service. http://www.accelacomm.com/jaw/sfnl/114/51521223/ ___ Bitcoin-development mailing list Bitcoin-development@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bitcoin-development
Re: [Bitcoin-development] BitcoinQt eating 100% CPU
Bitcoin-Qt is now running nicely using around 0.9% CPU. So it seems like > the culprit was indeed line 31: > > if(mq->timed_receive(&strBuf, sizeof(strBuf), nSize, nPriority, d)) > > Others, who have seen similar issues ? > > I can definitely reproduce the issue on my mac. If I recall correctly, the Mac Bitcoin-Qt does not register itself as a bitcoin: URL handler, so the easiest fix for the 0.6 release would be to just never launch the ipcThread #ifdef Q_WS_MAC -- -- Gavin Andresen -- Virtualization & Cloud Management Using Capacity Planning Cloud computing makes use of virtualization - but cloud computing also focuses on allowing computing to be delivered as a service. http://www.accelacomm.com/jaw/sfnl/114/51521223/___ Bitcoin-development mailing list Bitcoin-development@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bitcoin-development
Re: [Bitcoin-development] BitcoinQt eating 100% CPU
A follow up on my mail from the other day (got it send from the wrong email
address...)
I now exit the ipc thread at startup by inserting:
void ipcThread(void* parg)
{
ipcShutdown();
return;
Bitcoin-Qt is now running nicely using around 0.9% CPU. So it seems like the
culprit was indeed line 31:
if(mq->timed_receive(&strBuf, sizeof(strBuf), nSize, nPriority, d))
Others, who have seen similar issues ?
Cheers,
M
On 21/02/2012, at 21:33, Michael Grønager wrote:
> Hi Wladimir / others,
>
> I just downloaded the latest (0.6 rc1) source of bitcoin-qt and built it
> using qt-creator on MacOSX 10.7.3. Nice and easy experience, even though I
> had to change BDB version to 5.1 ;)
>
> However, when running it, it is using 100% CPU (after initial block chain
> download that is...)
> * All activity in debug.log seems normal (blocks/txes/addresses are processes
> and accepted etc) so it is not stuck (at least not in the MessageThread)
> * Sampling the process shows that the majority of time in each thread is used
> for:
> ** __semwait_signal
> ** kevent
> ** __select
> ** mach_msg_trap
> ** boost::date_time::micro_sec_clock
>
> None of this would usually alert me - sleeping and waiting for conditions
> should not consume CPU, the only issue seems to be the last line which is
> called from qtipcserver.cpp line 31:
>
> if(mq->timed_receive(&strBuf, sizeof(strBuf), nSize, nPriority, d))
>
> As I see it this should not consume cpu either, but, it is the only thing
> that seems a bit strange..
>
> Have you seen this before?
>
> /M
--
Virtualization & Cloud Management Using Capacity Planning
Cloud computing makes use of virtualization - but cloud computing
also focuses on allowing computing to be delivered as a service.
http://www.accelacomm.com/jaw/sfnl/114/51521223/
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[Bitcoin-development] BitcoinQt eating 100% CPU
Hi Wladimir / others, I just downloaded the latest (0.6 rc1) source of bitcoin-qt and built it using qt-creator on MacOSX 10.7.3. Nice and easy experience, even though I had to change BDB version to 5.1 ;) However, when running it, it is using 100% CPU (after initial block chain download that is...) * All activity in debug.log seems normal (blocks/txes/addresses are processes and accepted etc) so it is not stuck (at least not in the MessageThread) * Sampling the process shows that the majority of time in each thread is used for: ** __semwait_signal ** kevent ** __select ** mach_msg_trap ** boost::date_time::micro_sec_clock None of this would usually alert me - sleeping and waiting for conditions should not consume CPU, the only issue seems to be the last line which is called from qtipcserver.cpp line 31: if(mq->timed_receive(&strBuf, sizeof(strBuf), nSize, nPriority, d)) As I see it this should not consume cpu either, but, it is the only thing that seems a bit strange.. Have you seen this before? /M -- Keep Your Developer Skills Current with LearnDevNow! The most comprehensive online learning library for Microsoft developers is just $99.99! Visual Studio, SharePoint, SQL - plus HTML5, CSS3, MVC3, Metro Style Apps, more. Free future releases when you subscribe now! http://p.sf.net/sfu/learndevnow-d2d ___ Bitcoin-development mailing list Bitcoin-development@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bitcoin-development
