User:Sb

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Stephan Bergmann, employed by Sun Microsystems, located in Hamburg, Germany.

Scratchpad

Performance-related issues

Additional processes during startup

Starting OOo DEV300m39 unxlngi6.pro on v20z-so3 (some old Ubuntu machine), soffice.bin spawns additional processes during start up: 

$ strace -fF opt/openoffice.org3/program/soffice.bin 2>&1 | grep 'exec.*('
execve("ooo/opt/openoffice.org3/program/soffice.bin", ["ooo/opt/openoffice.org3/program/"...], [/* 17 vars */]) = 0
[pid 19800] execve("/usr/lib/libgconf2-4/gconfd-2", ["/usr/lib/libgconf2-4/gconfd-2", "17"], [/* 18 vars */] <unfinished ...>
[pid 19802] execve("/bin/sh", ["sh", "-c", "sh -c paperconf 2>/dev/null"], [/* 18 vars */]) = 0
[pid 19803] execve("/bin/sh", ["sh", "-c", "paperconf"], [/* 17 vars */]) = 0

It turns out only the first additional process (/usr/lib/libgconf2-4/gconfd-2) is spawned directly from soffice.bin (and the following ones are in turn spawned from that process), and it is spawned during a call to gconf_client_preload: 

$ gdb opt/openoffice.org3/program/soffice.bin
(gdb) break fork
Breakpoint 2 at 0xb7c6f584
(gdb) run
Breakpoint 2, 0xb7c6f584 in fork () from /lib/tls/i686/cmov/libpthread.so.0
(gdb) info threads
  4 Thread -1296356432 (LWP 19893)  0xffffe410 in __kernel_vsyscall ()
  3 Thread -1287963728 (LWP 19892)  0xffffe410 in __kernel_vsyscall ()
  2 Thread -1251386448 (LWP 19889)  0xffffe410 in __kernel_vsyscall ()
* 1 Thread -1251252000 (LWP 19887)  0xb7c6f584 in fork ()
   from /lib/tls/i686/cmov/libpthread.so.0
(gdb) where
#0  0xb7c6f584 in fork () from /lib/tls/i686/cmov/libpthread.so.0
#1  0xb496593a in g_spawn_error_quark () from /usr/lib/libglib-2.0.so.0
#2  0xb49660fe in g_spawn_async_with_pipes () from /usr/lib/libglib-2.0.so.0
#3  0xb496617b in g_spawn_async () from /usr/lib/libglib-2.0.so.0
#4  0xb34a4ec6 in gconf_activate_server () from /usr/lib/libgconf-2.so.4
#5  0xb34afc29 in gconf_debug_shutdown () from /usr/lib/libgconf-2.so.4
#6  0xb34b06e1 in gconf_spawn_daemon () from /usr/lib/libgconf-2.so.4
#7  0xb34b091a in gconf_spawn_daemon () from /usr/lib/libgconf-2.so.4
#8  0xb34b148c in gconf_engine_all_entries () from /usr/lib/libgconf-2.so.4
#9  0xb34b7540 in gconf_client_all_entries () from /usr/lib/libgconf-2.so.4
#10 0xb34e0f9c in GconfLayer::getTimestamp (this=0xb342dc1c)
    at /so/ws/DEV300/ooo/shell/source/backends/gconfbe/gconflayer.cxx:528
#11 0xb35dc4c3 in configmgr::backend::BinaryReadHandler::validateHeader (
    this=0xbffcf42c, pLayers=0xb33c2020, nNumLayers=6,
    _aSchemaVersion=@0xbffcf550, aRequestedLocale=@0xbffcf530,
    outKnownLocales=@0xbffcf540) at Reference.h:366
#12 0xb35dd151 in configmgr::backend::BinaryCache::readComponentData (
    this=0xb33bca1c, aComponentData=@0xbffcf698, aFactory=@0xbffcf510,
    aComponent=@0xbffcf6c8, aSchemaVersion=@0xbffcf550, aEntity=@0xbffcf520,
    aRequestedLocale=@0xbffcf530, outKnownLocales=@0xbffcf540,
    pLayers=0xb33c2020, nNumLayers=6, bIncludeTemplates=true)
    at /so/ws/DEV300/ooo/configmgr/source/backend/binarycache.cxx:200
#13 0xb35cc7bd in configmgr::backend::BackendAccess::readDefaultData (
    this=0xb4584d5c, aComponentData=@0xbffcf698, aComponent=@0xbffcf6c8,
    aOptions=@0xbffcf83c, bIncludeTemplates=true, pLayers=0xb33c2020,
    nNumLayers=6, aTemplateProvider=0xb352d60c, pLayersMerged=0xbffcf644)
    at /so/ws/DEV300/ooo/configmgr/source/backend/backendaccess.cxx:84
#14 0xb35cd9bd in configmgr::backend::BackendAccess::getNodeData (
    this=0xb4584d5c, aRequest=@0xbffcf838, _aTemplateProvider=0xb352d60c,
    aListener=0xb352d610) at request.hxx:75
#15 0xb35934e5 in configmgr::backend::CacheController::loadDirectly (
    this=0xb352d604, _aRequest=@0xbffcf838, _bAddListenter=true) at ref.hxx:167
#16 0xb3597198 in configmgr::backend::CacheController::loadComponent (
    this=0xb352d604, _aRequest=@0xbffcf838)
    at /so/ws/DEV300/ooo/configmgr/source/treecache/cachecontroller.cxx:376
#17 0xb359b6d4 in configmgr::TreeManager::requestSubtree (this=0xb4584eac,
    aSubtreePath=@0xbffcf960, _aOptions=@0xbffcf83c) at ref.hxx:99
#18 0xb36517e9 in configmgr::OProviderImpl::requestSubtree (this=0xb458b31c,
    aSubtreePath=@0xbffcf960, _aOptions=@0xbffcf9a0) at ref.hxx:167
#19 0xb3652f6b in configmgr::OProviderImpl::buildReadAccess (this=0xb458b31c,
    _rAccessor=@0xbffcf9c0, _aOptions=@0xbffcf9a0, nMinLevels=-1)
    at /so/ws/DEV300/ooo/configmgr/source/api2/providerimpl.cxx:490
#20 0xb36532b5 in configmgr::OProviderImpl::createReadAccess (this=0xb458b31c,
    aArgs=@0xbffcfb80)
    at /so/ws/DEV300/ooo/configmgr/source/api2/providerimpl.cxx:860
#21 0xb364b799 in configmgr::OProvider::createInstanceWithArguments (
    this=0xb376a554, aServiceSpecifier=@0xbffcfb20, aArguments=@0xbffcfb80)
    at Reference.h:359
#22 0xb690b180 in DefaultFontConfiguration (this=0xb33c3394) at Reference.h:366
#23 0xb690ba5f in vcl::DefaultFontConfiguration::get ()
    at /so/ws/DEV300/ooo/vcl/source/gdi/fontcfg.cxx:107
#24 0xb684818d in ImplStyleData::SetStandardStyles (this=0xb33df618)
    at ustring.hxx:111
#25 0xb6848945 in ImplStyleData (this=0xb33df618)
    at /so/ws/DEV300/ooo/vcl/source/app/settings.cxx:438
#26 0xb6848eef in StyleSettings (this=0x0)
    at /so/ws/DEV300/ooo/vcl/source/app/settings.cxx:640
#27 0xb684aa98 in ImplAllSettingsData (this=0xb33b71c8)
    at /so/ws/DEV300/ooo/vcl/source/app/settings.cxx:1523
#28 0xb684b244 in AllSettings (this=0x0)
    at /so/ws/DEV300/ooo/vcl/source/app/settings.cxx:1590
#29 0xb684ce12 in Application::GetSettings ()
    at /so/ws/DEV300/ooo/vcl/source/app/svapp.cxx:814
#30 0xb68c699c in OutputDevice (this=0xb458e924)
    at /so/ws/DEV300/ooo/vcl/source/gdi/outdev.cxx:427
#31 0xb6a18618 in Window (this=0xb458e924, nType=383)
    at /so/ws/DEV300/ooo/vcl/source/window/window.cxx:4288
#32 0xb69ee0b7 in SystemWindow (this=0xb458e924, nType=0)
    at /so/ws/DEV300/ooo/vcl/source/window/syswin.cxx:83
#33 0xb6a28a72 in WorkWindow (this=0xb458e924, nType=0)
    at /so/ws/DEV300/ooo/vcl/source/window/wrkwin.cxx:114
#34 0xb69c8151 in IntroWindow (this=0xb458e924)
    at /so/ws/DEV300/ooo/vcl/source/window/introwin.cxx:61
#35 0xb239185d in SplashScreen (this=0xb458e908, rSMgr=@0x0)
    at /so/ws/DEV300/ooo/desktop/source/splash/splash.cxx:83
#36 0xb2391b10 in desktop::SplashScreen::getInstance (rSMgr=@0xbffcfdec)
    at weak.hxx:91
#37 0xb77d9206 in cppu::OSingleFactoryHelper::createInstanceEveryTime (
    this=0xb33b726c, xContext=@0x1) at Reference.h:359
#38 0xb77d88be in cppu::OSingleFactoryHelper::createInstanceWithContext (
    this=0x0, xContext=@0xb4e41ad8) at Reference.h:359
#39 0xb77d8cb1 in cppu::OFactoryComponentHelper::createInstanceWithContext (
    this=0xb33b7238, xContext=@0xb4e41ad8) at Reference.h:359
#40 0xb77d9988 in cppu::OSingleFactoryHelper::createInstanceWithArgumentsAndContext (this=0x0, rArguments=@0xbffd0160, xContext=@0xb4e41ad8) at Reference.h:359
#41 0xb77da48e in cppu::OFactoryComponentHelper::createInstanceWithArgumentsAndContext (this=0xb33b7238, rArguments=@0xbffd0160, xContext=@0xb4e41ad8)
    at Reference.h:359
#42 0xb77dadce in cppu::ORegistryFactoryHelper::createInstanceWithArgumentsAndContext (this=0xb33b4264, rArguments=@0xbffd0160, xContext=@0xb4e41ad8)
    at Reference.h:366
#43 0xb45f68e9 in stoc_smgr::OServiceManager::createInstanceWithArgumentsAndContext (this=0xb33b42a0, rServiceSpecifier=@0xbffd0130, rArguments=@0xbffd0160,
    xContext=@0xb4e41ad8) at Reference.h:366
#44 0xb45f61a8 in stoc_smgr::OServiceManager::createInstanceWithArguments (
    this=0x1, rServiceSpecifier=@0xbffd0130, rArguments=@0xbffd0160)
    at Reference.h:359
#45 0xb7dbcc21 in desktop::Desktop::OpenSplashScreen (this=0xbffd04a4)
    at Reference.h:121
#46 0xb7dbd296 in desktop::Desktop::Main (this=0xbffd04a4)
    at /so/ws/DEV300/ooo/desktop/source/app/app.cxx:1232
#47 0xb6852372 in ImplSVMain ()
    at /so/ws/DEV300/ooo/vcl/source/app/svmain.cxx:194
#48 0xb68524fd in SVMain () at /so/ws/DEV300/ooo/vcl/source/app/svmain.cxx:235
#49 0xb7de6e23 in soffice_main ()
    at /so/ws/DEV300/ooo/desktop/source/app/sofficemain.cxx:52
#50 0x08048dea in main (argc=1, argv=0xbffd0584) at main.c:38
(gdb) cont
Program exited normally.
(gdb) quit

However, it turns out those calls to gconf_client_preload account for only 0.01 seconds of wall-clock time during start up, so are probably negligible for now: 

$ patch -p 0 <<-\EOF
	Index: tags/DEV300_m39/shell/source/backends/gconfbe/gconflayer.cxx
	===================================================================
	--- tags/DEV300_m39/shell/source/backends/gconfbe/gconflayer.cxx        (revision 266425)
	+++ tags/DEV300_m39/shell/source/backends/gconfbe/gconflayer.cxx        (working copy)
	@@ -1,3 +1,5 @@
	+/*SB*/#include<stdio.h>
	+/*SB*/#include<time.h>
	 /*************************************************************************
	  *
	  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
	@@ -524,8 +526,10 @@
	     GConfValue* aGconfValue;
	     int i = 0;
	
	+/*SB*/clock_t TIME=clock();
	     while( m_pPreloadValuesList[i] != NULL )
	         gconf_client_preload( aClient, m_pPreloadValuesList[i++], GCONF_CLIENT_PRELOAD_ONELEVEL, NULL );
	+/*SB*/TIME=clock()-TIME;fprintf(stderr,"time %f\n",double(double(TIME)/CLOCKS_PER_SEC));for(int N=0;N<i;++N)fprintf(stderr," preload %d <%s>\n",N,m_pPreloadValuesList[N]);
	
	     for( i = 0; i < m_nConfigurationValues; i++ )
	     {
EOF

$ opt/openoffice.org3/program/soffice.bin
time 0.010000
 preload 0 </desktop/gnome/interface>
time 0.000000
 preload 0 </desktop/gnome/url-handlers/mailto>
time 0.000000
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