LISTSERV mailing list manager LISTSERV 16.5

Help for XROOTD-L Archives


XROOTD-L Archives

XROOTD-L Archives


XROOTD-L@LISTSERV.SLAC.STANFORD.EDU


View:

Message:

[

First

|

Previous

|

Next

|

Last

]

By Topic:

[

First

|

Previous

|

Next

|

Last

]

By Author:

[

First

|

Previous

|

Next

|

Last

]

Font:

Proportional Font

LISTSERV Archives

LISTSERV Archives

XROOTD-L Home

XROOTD-L Home

XROOTD-L  May 2011

XROOTD-L May 2011

Subject:

excessive 'getrusage' calls [was: debugging poor performance of xroot across WAN]

From:

Charles G Waldman <[log in to unmask]>

Date:

16 May 2011 17:07:22 -0500Mon, 16 May 2011 17:07:22 -0500

Content-Type:

text/plain

Parts/Attachments:

Parts/Attachments

text/plain (98 lines)


Since the original email covered a few different points, I'm splitting
it out into separate threads.  This covers issue 3, the "getrusage"
calls.



 >> Question 3)
 >>
 >> I also see from strace output that the code is calling 'getrusage' excessively, does this
 >> really need to be checked 2500 times per second?
 >>
 >> Here's a count of system calls made in 90 seconds.
 >>  232452 getrusage
 >>  77484 gettimeofday
 >>  45394 time
 >>  16750 futex
 >>   15908 timer_settime
 >>   9131 clock_gettime
 >>   8373 send
 >>   8373 poll
 >>   1930 write
 >>   1137 lstat64
 >>    758 read
 >>    758 open
 >>    758 close
 >>     62 rt_sigaction
 >>     31 _llseek

 >    Are you sure that getrusage is called from XRootD and not from some
 > other place in your framework? I could not quite reproduce this issue
 > with xrdcp which uses the same underlying API.

It turns out the 'getrusage' is coming from Gaudi as the following
stack trace shows.  What is the appropriate place to report this?


Breakpoint 1, 0xf7668110 in getrusage () from /lib/libc.so.6
#0  0xf7668110 in getrusage () from /lib/libc.so.6
#1  0xf47f213c in System::ProcessDescriptor::query(long, System::InfoType, System::KERNEL_USER_TIMES*) () from /opt/atlas/software/manageTier3SW/ATLASLocal
RootBase/Athena/i686_slc5_gcc43_opt/16.0.3/GAUDI/v21r9p3a/InstallArea/i686-slc5-gcc43-opt/lib/libGaudiKernel.so
#2  0xf47fb4ff in System::userTime(System::TimeType, System::InfoType, long) () from /opt/atlas/software/manageTier3SW/ATLASLocalRootBase/Athena/i686_slc5_
gcc43_opt/16.0.3/GAUDI/v21r9p3a/InstallArea/i686-slc5-gcc43-opt/lib/libGaudiKernel.so
#3  0xf479b2dc in ChronoEntity::stop() () from /opt/atlas/software/manageTier3SW/ATLASLocalRootBase/Athena/i686_slc5_gcc43_opt/16.0.3/GAUDI/v21r9p3a/Instal
lArea/i686-slc5-gcc43-opt/lib/libGaudiKernel.so
#4  0xf3409c58 in ChronoStatSvc::chronoStop(std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) () from /opt/atlas/software/mana
geTier3SW/ATLASLocalRootBase/Athena/i686_slc5_gcc43_opt/16.0.3/GAUDI/v21r9p3a/InstallArea/i686-slc5-gcc43-opt/lib/libGaudiSvc.so
#5  0xf12330f4 in AthenaPoolCnvSvc::setObjPtr(void*&, pool::Token const*) const () from /opt/atlas/software/manageTier3SW/ATLASLocalRootBase/Athena/i686_sl
c5_gcc43_opt/16.0.3/AtlasCore/16.0.3/InstallArea/i686-slc5-gcc43-opt/lib/libAthenaPoolCnvSvcLib.so
#6  0xe624f3c1 in StatusCode T_AthenaPoolCustCnv<TruthParticleContainer, TruthParticleContainer_p6>::poolToObject<TruthParticleContainer_p6>(std::basic_str
ing<char, std::char_traits<char>, std::allocator<char> > const&, TruthParticleContainer_p6*&) () from /opt/atlas/software/manageTier3SW/ATLASLocalRootBase/
Athena/i686_slc5_gcc43_opt/16.0.3/AtlasEvent/16.0.3/InstallArea/i686-slc5-gcc43-opt/lib/libMcParticleEventAthenaPoolPoolCnv.so
#7  0xe623b649 in TruthParticleContainerCnv::createTransient() () from /opt/atlas/software/manageTier3SW/ATLASLocalRootBase/Athena/i686_slc5_gcc43_opt/16.0
.3/AtlasEvent/16.0.3/InstallArea/i686-slc5-gcc43-opt/lib/libMcParticleEventAthenaPoolPoolCnv.so
#8  0xe62498bc in T_AthenaPoolCustomCnv<TruthParticleContainer, TruthParticleContainer_p6>::PoolToDataObject(DataObject*&, std::basic_string<char, std::cha
r_traits<char>, std::allocator<char> > const&) () from /opt/atlas/software/manageTier3SW/ATLASLocalRootBase/Athena/i686_slc5_gcc43_opt/16.0.3/AtlasEvent/16
.0.3/InstallArea/i686-slc5-gcc43-opt/lib/libMcParticleEventAthenaPoolPoolCnv.so
#9  0xf1253342 in AthenaPoolConverter::createObj(IOpaqueAddress*, DataObject*&) () from /opt/atlas/software/manageTier3SW/ATLASLocalRootBase/Athena/i686_sl
c5_gcc43_opt/16.0.3/AtlasCore/16.0.3/InstallArea/i686-slc5-gcc43-opt/lib/libAthenaPoolCnvSvcLib.so
#10 0xf2c24506 in AthCnvSvc::makeCall(int, bool, bool, bool, IOpaqueAddress*&, DataObject*&) () from /opt/atlas/software/manageTier3SW/ATLASLocalRootBase/A
thena/i686_slc5_gcc43_opt/16.0.3/AtlasCore/16.0.3/InstallArea/i686-slc5-gcc43-opt/lib/libAthenaBaseComps.so
#11 0xf2c24bbe in AthCnvSvc::createObj(IOpaqueAddress*, DataObject*&) () from /opt/atlas/software/manageTier3SW/ATLASLocalRootBase/Athena/i686_slc5_gcc43_o
pt/16.0.3/AtlasCore/16.0.3/InstallArea/i686-slc5-gcc43-opt/lib/libAthenaBaseComps.so
#12 0xf123d085 in AthenaPoolCnvSvc::createObj(IOpaqueAddress*, DataObject*&) () from /opt/atlas/software/manageTier3SW/ATLASLocalRootBase/Athena/i686_slc5_
gcc43_opt/16.0.3/AtlasCore/16.0.3/InstallArea/i686-slc5-gcc43-opt/lib/libAthenaPoolCnvSvcLib.so
#13 0xf358b9e0 in PersistencySvc::makeCall(int, IOpaqueAddress*&, DataObject*&) () from /opt/atlas/software/manageTier3SW/ATLASLocalRootBase/Athena/i686_sl
c5_gcc43_opt/16.0.3/GAUDI/v21r9p3a/InstallArea/i686-slc5-gcc43-opt/lib/libGaudiSvc.so
#14 0xf358bd4f in PersistencySvc::createObj(IOpaqueAddress*, DataObject*&) () from /opt/atlas/software/manageTier3SW/ATLASLocalRootBase/Athena/i686_slc5_gc
c43_opt/16.0.3/GAUDI/v21r9p3a/InstallArea/i686-slc5-gcc43-opt/lib/libGaudiSvc.so
#15 0xf2b89f28 in SG::DataProxy::accessData() () from /opt/atlas/software/manageTier3SW/ATLASLocalRootBase/Athena/i686_slc5_gcc43_opt/16.0.3/AtlasCore/16.0
.3/InstallArea/i686-slc5-gcc43-opt/lib/libSGTools.so
#16 0xe7611731 in TruthParticleContainer* SG::DataProxy_cast<TruthParticleContainer>(SG::DataProxy*) () from /scratch/Panda_Pilot_12278_1305546093/PandaJob_1237132242_1305546198/workDir/InstallArea/i686-slc5-gcc43-opt/lib/libUserAnalysis.so
#17 0xe761c8cb in StatusCode StoreGateSvc::retrieve<TruthParticleContainer, std::basic_string<char, std::char_traits<char>, std::allocator<char> > >(TruthParticleContainer const*&, std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) () from /scratch/Panda_Pilot_12278_1305546093/PandaJob_1237132242_1305546198/workDir/InstallArea/i686-slc5-gcc43-opt/lib/libUserAnalysis.so
#18 0xe75d0b5a in AnalysisSkeleton::dumpMuonTrigger() () from /scratch/Panda_Pilot_12278_1305546093/PandaJob_1237132242_1305546198/workDir/InstallArea/i686-slc5-gcc43-opt/lib/libUserAnalysis.so
#19 0xe760085f in AnalysisSkeleton::CBNT_execute() () from /scratch/Panda_Pilot_12278_1305546093/PandaJob_1237132242_1305546198/workDir/InstallArea/i686-slc5-gcc43-opt/lib/libUserAnalysis.so
#20 0xe7b4c1f5 in CBNT_AthenaAwareBase::execute() () from /opt/atlas/software/manageTier3SW/ATLASLocalRootBase/Athena/i686_slc5_gcc43_opt/16.0.3/AtlasEvent/16.0.3/InstallArea/i686-slc5-gcc43-opt/lib/libCBNT_UtilsLib.so
#21 0xf47c251d in Algorithm::sysExecute() () from /opt/atlas/software/manageTier3SW/ATLASLocalRootBase/Athena/i686_slc5_gcc43_opt/16.0.3/GAUDI/v21r9p3a/InstallArea/i686-slc5-gcc43-opt/lib/libGaudiKernel.so
22 0xe7998e9b in CBNT_AthenaAware::execute() () from /opt/atlas/software/manageTier3SW/ATLASLocalRootBase/Athena/i686_slc5_gcc43_opt/16.0.3/AtlasEvent/16.0.3/InstallArea/i686-slc5-gcc43-opt/lib/libCBNT_Athena.so
#23 0xf47c251d in Algorithm::sysExecute() () from /opt/atlas/software/manageTier3SW/ATLASLocalRootBase/Athena/i686_slc5_gcc43_opt/16.0.3/GAUDI/v21r9p3a/InstallArea/i686-slc5-gcc43-opt/lib/libGaudiKernel.so
#24 0xe7e54203 in AthSequencer::execute() () from /opt/atlas/software/manageTier3SW/ATLASLocalRootBase/Athena/i686_slc5_gcc43_opt/16.0.3/AtlasCore/16.0.3/InstallArea/i686-slc5-gcc43-opt/lib/libGaudiSequencer.so
#25 0xf47c251d in Algorithm::sysExecute() () from /opt/atlas/software/manageTier3SW/ATLASLocalRootBase/Athena/i686_slc5_gcc43_opt/16.0.3/GAUDI/v21r9p3a/InstallArea/i686-slc5-gcc43-opt/lib/libGaudiKernel.so
#26 0xe7e54203 in AthSequencer::execute() () from /opt/atlas/software/manageTier3SW/ATLASLocalRootBase/Athena/i686_slc5_gcc43_opt/16.0.3/AtlasCore/16.0.3/InstallArea/i686-slc5-gcc43-opt/lib/libGaudiSequencer.so
#27 0xf47c251d in Algorithm::sysExecute() () from /opt/atlas/software/manageTier3SW/ATLASLocalRootBase/Athena/i686_slc5_gcc43_opt/16.0.3/GAUDI/v21r9p3a/InstallArea/i686-slc5-gcc43-opt/lib/libGaudiKernel.so
#28 0xf2d1464f in AthenaEventLoopMgr::executeAlgorithms() () from /opt/atlas/software/manageTier3SW/ATLASLocalRootBase/Athena/i686_slc5_gcc43_opt/16.0.3/AtlasCore/16.0.3/InstallArea/i686-slc5-gcc43-opt/lib/libAthenaServices.so
#29 0xf2d1ae3e in AthenaEventLoopMgr::executeEvent(void*) () from /opt/atlas/software/manageTier3SW/ATLASLocalRootBase/Athena/i686_slc5_gcc43_opt/16.0.3/AtlasCore/16.0.3/InstallArea/i686-slc5-gcc43-opt/lib/libAthenaServices.so
#30 0xf2d19b22 in AthenaEventLoopMgr::nextEvent(int) () from /opt/atlas/software/manageTier3SW/ATLASLocalRootBase/Athena/i686_slc5_gcc43_opt/16.0.3/AtlasCore/16.0.3/InstallArea/i686-slc5-gcc43-opt/lib/libAthenaServices.so
#31 0xf2d137db in AthenaEventLoopMgr::executeRun(int) () from /opt/atlas/software/manageTier3SW/ATLASLocalRootBase/Athena/i686_slc5_gcc43_opt/16.0.3/AtlasCore/16.0.3/InstallArea/i686-slc5-gcc43-opt/lib/libAthenaServices.so
#32 0xf33cea49 in ApplicationMgr::executeRun(int) () from /opt/atlas/software/manageTier3SW/ATLASLocalRootBase/Athena/i686_slc5_gcc43_opt/16.0.3/GAUDI/v21r9p3a/InstallArea/i686-slc5-gcc43-opt/lib/libGaudiSvc.so
#33 0xf3d4e94d in (anonymous namespace)::method_4267(void*, void*, std::vector<void*, std::allocator<void*> > const&, void*) () from /opt/atlas/software/manageTier3SW/ATLASLocalRootBase/Athena/i686_slc5_gcc43_opt/16.0.3/GAUDI/v21r9p3a/InstallArea/i686-slc5-gcc43-opt/lib/libGaudiKernelDict.so
#34 0xf528c437 in ROOT::Cintex::Method_stub_with_context(ROOT::Cintex::StubContext_t*, G__value*, char const*, G__param*, int) () from /opt/atlas/software/manageTier3SW/ATLASLocalRootBase/Athena/i686_slc5_gcc43_opt/16.0.3/DetCommon/16.0.3/InstallArea/i686-slc5-gcc43-opt/lib/libCintex.so
#35 0xf30d7034 in ?? ()
#36 0x0eb0a280 in ?? ()
#37 0x0fb9c004 in ?? ()
#38 0x00000000 in ?? ()



Top of Message | Previous Page | Permalink

Advanced Options


Options

Log In

Log In

Get Password

Get Password


Search Archives

Search Archives


Subscribe or Unsubscribe

Subscribe or Unsubscribe


Archives

September 2023
August 2023
July 2023
June 2023
May 2023
April 2023
March 2023
February 2023
January 2023
December 2022
October 2022
September 2022
August 2022
July 2022
June 2022
May 2022
April 2022
March 2022
February 2022
January 2022
December 2021
November 2021
October 2021
September 2021
August 2021
July 2021
June 2021
May 2021
April 2021
March 2021
February 2021
January 2021
December 2020
November 2020
October 2020
September 2020
August 2020
July 2020
June 2020
May 2020
April 2020
March 2020
February 2020
January 2020
December 2019
November 2019
October 2019
September 2019
August 2019
July 2019
June 2019
May 2019
April 2019
March 2019
February 2019
January 2019
December 2018
November 2018
October 2018
September 2018
August 2018
July 2018
June 2018
May 2018
April 2018
March 2018
February 2018
January 2018
December 2017
November 2017
October 2017
September 2017
August 2017
July 2017
June 2017
May 2017
April 2017
March 2017
February 2017
January 2017
December 2016
November 2016
October 2016
September 2016
August 2016
July 2016
May 2016
April 2016
March 2016
February 2016
January 2016
December 2015
November 2015
October 2015
September 2015
August 2015
July 2015
June 2015
May 2015
April 2015
March 2015
February 2015
January 2015
December 2014
November 2014
October 2014
September 2014
August 2014
July 2014
June 2014
May 2014
April 2014
March 2014
February 2014
January 2014
December 2013
November 2013
October 2013
September 2013
August 2013
July 2013
June 2013
May 2013
April 2013
March 2013
February 2013
January 2013
December 2012
November 2012
October 2012
September 2012
August 2012
July 2012
June 2012
May 2012
April 2012
March 2012
February 2012
January 2012
December 2011
November 2011
October 2011
September 2011
August 2011
July 2011
June 2011
May 2011
April 2011
March 2011
February 2011
January 2011
December 2010
October 2010
September 2010
August 2010
July 2010
June 2010
May 2010
April 2010
March 2010
February 2010
January 2010
December 2009
November 2009
October 2009
September 2009
July 2009
June 2009
May 2009
April 2009
March 2009
January 2009
December 2008
September 2008
August 2008
July 2008
June 2008
May 2008
April 2008
March 2008
February 2008
January 2008
December 2007
November 2007
October 2007
September 2007
August 2007
July 2007
June 2007
May 2007
April 2007
March 2007
February 2007
January 2007
December 2006
November 2006
October 2006
September 2006
August 2006
July 2006
June 2006
May 2006
April 2006
March 2006
February 2006
January 2006
December 2005
November 2005
October 2005
September 2005
August 2005
July 2005
June 2005
May 2005
April 2005
March 2005
February 2005
January 2005
December 2004
November 2004
October 2004
September 2004
August 2004

ATOM RSS1 RSS2



LISTSERV.SLAC.STANFORD.EDU

Secured by F-Secure Anti-Virus CataList Email List Search Powered by the LISTSERV Email List Manager

Privacy Notice, Security Notice and Terms of Use