EPICS Does EPICS Base support multi-thread on vxWorks 6.3?

Experimental Physics and Industrial Control System

1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 <2011> 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024	Index	1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 <2011> 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024
<== Date ==>		<== Thread ==>

Subject:	Does EPICS Base support multi-thread on vxWorks 6.3?
From:	[email protected]
To:	[email protected]
Date:	Fri, 15 Apr 2011 15:34:53 +0800

Hi All,

We developed a client based on libca (EPICS Base 3.14.9), which will create it's own worker thread on construction. But we found it working strangely on vxWorks (ppc-603). Whenever a second EPICS client is created (meaning there are now 2 EPICS worker threads on vxWorks), the CPU usage became 100%.

From the profile, we found the ca_pend_event is consuming lots of the CPU. Meanwhile, it seems epicsMutex is failing to do the lock for the second EPICS client??

Attached is the profile result.

Thanks in advance.

Lorna

Attachment: epicsclient1.profile
Description: Binary data

Replies:: Re: Does EPICS Base support multi-thread on vxWorks 6.3? Andrew Johnson; RE: Does EPICS Base support multi-thread on vxWorks 6.3? Jeff Hill

Navigate by Date:: Prev: Increase event number limit Euan.Troup; Next: Re: Increase event number limit Dirk Zimoch; Index: 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 <2011> 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024
Navigate by Thread:: Prev: Re: Increase event number limit Dirk Zimoch; Next: Re: Does EPICS Base support multi-thread on vxWorks 6.3? Andrew Johnson; Index: 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 <2011> 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024