Experimental Physics and
Industrial Control System

Hi Lin,

I did some tests in May 2015 on 3.15.2-rc1 building on Windows.  I found that 3.15.2 took 1.5 to 2 times longer to build than 3.14.12.5.  I also studied the effects of the number of threads with make -jN.  This is the tech-talk message with the results:

http://www.aps.anl.gov/epics/tech-talk/2015/msg00886.php

Mark


________________________________
From: [email protected] [[email protected]] on behalf of Wang, Lin [[email protected]]
Sent: Tuesday, March 22, 2016 4:56 PM
To: [email protected]
Subject: EPICS 3.15 IOC built much slower than 3.14


Dear All,

After I upgraded EPICS base from 3.14.12.2 to 3.15.3, my IOC was built much slower than before.



So I did a brief test on Debian Jessie: To build two identical example IOCs with 3.14 and 3.15 respectively, the result is that it takes about only 1 second for 3.14 but 10 seconds for 3.15.



For 3.15 IOC, most of the time is taken by the following two perl-related commands:

perl -CSD /usr/lib/epics/bin/linux-x86_64/dbdExpand.pl   -I. -I.. -I../O.Common -I../../../dbd -I/usr/lib/epics/dbd -o example.dbd base.dbd xxxSupport.dbd dbSubExample.dbd exampleHello.dbd initTrace.dbd

perl -CSD /usr/lib/epics/bin/linux-x86_64/registerRecordDeviceDriver.pl   -I. -I.. -I../O.Common -I../../../dbd -I/usr/lib/epics/dbd    -o example_registerRecordDeviceDriver.cpp ../O.Common/example.dbd example_registerRecordDeviceDriver /home/vagrant/epicsApp/app315



Whereas for 3.14 IOC, there are two similar commands but are executed fast:

perl /home/vagrant/base-3.14.12.2/bin/linux-x86_64/makeIncludeDbd.pl base.dbd xxxSupport.dbd dbSubExample.dbd exampleHello.dbd initTrace.dbd exampleInclude.dbd



perl /home/vagrant/base-3.14.12.2/bin/linux-x86_64/registerRecordDeviceDriver.pl ../O.Common/example.dbd example_registerRecordDeviceDriver /home/vagrant/epicsApp/app314 > example.tmp



Does it also happen on your EPICS 3.15 environment?





Thanks,

Lin Wang
Research Associate
Facility for Rare Isotope Beams
Michigan State University
640 South Shaw Lane
East Lansing, MI 48824-1321, USA
Tel. 517-908-7519
Email: [email protected]

References:

EPICS 3.15 IOC built much slower than 3.14 Wang, Lin

Navigate by Date:

Prev: EPICS 3.15 IOC built much slower than 3.14 Wang, Lin

Next: way of auto move and record l123173

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: EPICS 3.15 IOC built much slower than 3.14 Wang, Lin

Next: way of auto move and record l123173

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