Difference between revisions of "User:Sb"

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(moved scratchpad stuff to Performance/Startup)
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Stephan Bergmann, employed by [http://www.sun.com Sun Microsystems], located in Hamburg, Germany.
 
Stephan Bergmann, employed by [http://www.sun.com Sun Microsystems], located in Hamburg, Germany.
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= Scratchpad =
 
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== Performance-related issues ==
 
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* [http://qa.openoffice.org/issues/show_bug.cgi?id=96284 Issue 96284] “registry symlink foo ...”
 
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* [http://qa.openoffice.org/issues/show_bug.cgi?id=97424 Issue 97424] “improve ImplImageTree performance”
 
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== Additional processes during startup ==
 
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Starting OOo <code>DEV300m39</code> <code>unxlngi6.pro</code> on <code>v20z-so3</code> (some old Ubuntu machine), <code>soffice.bin</code> spawns additional processes during start up:
 
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<pre>
 
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$ strace -fF opt/openoffice.org3/program/soffice.bin 2>&1 | grep 'exec.*('
 
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execve("ooo/opt/openoffice.org3/program/soffice.bin", ["ooo/opt/openoffice.org3/program/"...], [/* 17 vars */]) = 0
 
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[pid 19800] execve("/usr/lib/libgconf2-4/gconfd-2", ["/usr/lib/libgconf2-4/gconfd-2", "17"], [/* 18 vars */] <unfinished ...>
 
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[pid 19802] execve("/bin/sh", ["sh", "-c", "sh -c paperconf 2>/dev/null"], [/* 18 vars */]) = 0
 
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[pid 19803] execve("/bin/sh", ["sh", "-c", "paperconf"], [/* 17 vars */]) = 0
 
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</pre>
 
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It turns out only the first additional process (<code>/usr/lib/libgconf2-4/gconfd-2</code>) is spawned directly from <code>soffice.bin</code> (and the following ones are in turn spawned from that process), and it is spawned during a call to <code>gconf_client_preload</code>:
 
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<pre>
 
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$ gdb opt/openoffice.org3/program/soffice.bin
 
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(gdb) break fork
 
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Breakpoint 2 at 0xb7c6f584
 
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(gdb) run
 
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Breakpoint 2, 0xb7c6f584 in fork () from /lib/tls/i686/cmov/libpthread.so.0
 
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(gdb) info threads
 
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  4 Thread -1296356432 (LWP 19893)  0xffffe410 in __kernel_vsyscall ()
 
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  3 Thread -1287963728 (LWP 19892)  0xffffe410 in __kernel_vsyscall ()
 
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  2 Thread -1251386448 (LWP 19889)  0xffffe410 in __kernel_vsyscall ()
 
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* 1 Thread -1251252000 (LWP 19887)  0xb7c6f584 in fork ()
 
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  from /lib/tls/i686/cmov/libpthread.so.0
 
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(gdb) where
 
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#0  0xb7c6f584 in fork () from /lib/tls/i686/cmov/libpthread.so.0
 
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#1  0xb496593a in g_spawn_error_quark () from /usr/lib/libglib-2.0.so.0
 
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#2  0xb49660fe in g_spawn_async_with_pipes () from /usr/lib/libglib-2.0.so.0
 
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#3  0xb496617b in g_spawn_async () from /usr/lib/libglib-2.0.so.0
 
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#4  0xb34a4ec6 in gconf_activate_server () from /usr/lib/libgconf-2.so.4
 
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#5  0xb34afc29 in gconf_debug_shutdown () from /usr/lib/libgconf-2.so.4
 
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#6  0xb34b06e1 in gconf_spawn_daemon () from /usr/lib/libgconf-2.so.4
 
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#7  0xb34b091a in gconf_spawn_daemon () from /usr/lib/libgconf-2.so.4
 
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#8  0xb34b148c in gconf_engine_all_entries () from /usr/lib/libgconf-2.so.4
 
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#9  0xb34b7540 in gconf_client_all_entries () from /usr/lib/libgconf-2.so.4
 
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#10 0xb34e0f9c in GconfLayer::getTimestamp (this=0xb342dc1c)
 
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    at /so/ws/DEV300/ooo/shell/source/backends/gconfbe/gconflayer.cxx:528
 
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#11 0xb35dc4c3 in configmgr::backend::BinaryReadHandler::validateHeader (
 
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    this=0xbffcf42c, pLayers=0xb33c2020, nNumLayers=6,
 
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    _aSchemaVersion=@0xbffcf550, aRequestedLocale=@0xbffcf530,
 
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    outKnownLocales=@0xbffcf540) at Reference.h:366
 
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#12 0xb35dd151 in configmgr::backend::BinaryCache::readComponentData (
 
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    this=0xb33bca1c, aComponentData=@0xbffcf698, aFactory=@0xbffcf510,
 
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    aComponent=@0xbffcf6c8, aSchemaVersion=@0xbffcf550, aEntity=@0xbffcf520,
 
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    aRequestedLocale=@0xbffcf530, outKnownLocales=@0xbffcf540,
 
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    pLayers=0xb33c2020, nNumLayers=6, bIncludeTemplates=true)
 
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    at /so/ws/DEV300/ooo/configmgr/source/backend/binarycache.cxx:200
 
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#13 0xb35cc7bd in configmgr::backend::BackendAccess::readDefaultData (
 
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    this=0xb4584d5c, aComponentData=@0xbffcf698, aComponent=@0xbffcf6c8,
 
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    aOptions=@0xbffcf83c, bIncludeTemplates=true, pLayers=0xb33c2020,
 
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    nNumLayers=6, aTemplateProvider=0xb352d60c, pLayersMerged=0xbffcf644)
 
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    at /so/ws/DEV300/ooo/configmgr/source/backend/backendaccess.cxx:84
 
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#14 0xb35cd9bd in configmgr::backend::BackendAccess::getNodeData (
 
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    this=0xb4584d5c, aRequest=@0xbffcf838, _aTemplateProvider=0xb352d60c,
 
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    aListener=0xb352d610) at request.hxx:75
 
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#15 0xb35934e5 in configmgr::backend::CacheController::loadDirectly (
 
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    this=0xb352d604, _aRequest=@0xbffcf838, _bAddListenter=true) at ref.hxx:167
 
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#16 0xb3597198 in configmgr::backend::CacheController::loadComponent (
 
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    this=0xb352d604, _aRequest=@0xbffcf838)
 
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    at /so/ws/DEV300/ooo/configmgr/source/treecache/cachecontroller.cxx:376
 
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#17 0xb359b6d4 in configmgr::TreeManager::requestSubtree (this=0xb4584eac,
 
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    aSubtreePath=@0xbffcf960, _aOptions=@0xbffcf83c) at ref.hxx:99
 
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#18 0xb36517e9 in configmgr::OProviderImpl::requestSubtree (this=0xb458b31c,
 
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    aSubtreePath=@0xbffcf960, _aOptions=@0xbffcf9a0) at ref.hxx:167
 
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#19 0xb3652f6b in configmgr::OProviderImpl::buildReadAccess (this=0xb458b31c,
 
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    _rAccessor=@0xbffcf9c0, _aOptions=@0xbffcf9a0, nMinLevels=-1)
 
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    at /so/ws/DEV300/ooo/configmgr/source/api2/providerimpl.cxx:490
 
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#20 0xb36532b5 in configmgr::OProviderImpl::createReadAccess (this=0xb458b31c,
 
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    aArgs=@0xbffcfb80)
 
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    at /so/ws/DEV300/ooo/configmgr/source/api2/providerimpl.cxx:860
 
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#21 0xb364b799 in configmgr::OProvider::createInstanceWithArguments (
 
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    this=0xb376a554, aServiceSpecifier=@0xbffcfb20, aArguments=@0xbffcfb80)
 
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    at Reference.h:359
 
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#22 0xb690b180 in DefaultFontConfiguration (this=0xb33c3394) at Reference.h:366
 
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#23 0xb690ba5f in vcl::DefaultFontConfiguration::get ()
 
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    at /so/ws/DEV300/ooo/vcl/source/gdi/fontcfg.cxx:107
 
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#24 0xb684818d in ImplStyleData::SetStandardStyles (this=0xb33df618)
 
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    at ustring.hxx:111
 
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#25 0xb6848945 in ImplStyleData (this=0xb33df618)
 
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    at /so/ws/DEV300/ooo/vcl/source/app/settings.cxx:438
 
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#26 0xb6848eef in StyleSettings (this=0x0)
 
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    at /so/ws/DEV300/ooo/vcl/source/app/settings.cxx:640
 
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#27 0xb684aa98 in ImplAllSettingsData (this=0xb33b71c8)
 
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    at /so/ws/DEV300/ooo/vcl/source/app/settings.cxx:1523
 
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#28 0xb684b244 in AllSettings (this=0x0)
 
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    at /so/ws/DEV300/ooo/vcl/source/app/settings.cxx:1590
 
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#29 0xb684ce12 in Application::GetSettings ()
 
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    at /so/ws/DEV300/ooo/vcl/source/app/svapp.cxx:814
 
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#30 0xb68c699c in OutputDevice (this=0xb458e924)
 
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    at /so/ws/DEV300/ooo/vcl/source/gdi/outdev.cxx:427
 
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#31 0xb6a18618 in Window (this=0xb458e924, nType=383)
 
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    at /so/ws/DEV300/ooo/vcl/source/window/window.cxx:4288
 
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#32 0xb69ee0b7 in SystemWindow (this=0xb458e924, nType=0)
 
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    at /so/ws/DEV300/ooo/vcl/source/window/syswin.cxx:83
 
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#33 0xb6a28a72 in WorkWindow (this=0xb458e924, nType=0)
 
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    at /so/ws/DEV300/ooo/vcl/source/window/wrkwin.cxx:114
 
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#34 0xb69c8151 in IntroWindow (this=0xb458e924)
 
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    at /so/ws/DEV300/ooo/vcl/source/window/introwin.cxx:61
 
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#35 0xb239185d in SplashScreen (this=0xb458e908, rSMgr=@0x0)
 
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    at /so/ws/DEV300/ooo/desktop/source/splash/splash.cxx:83
 
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#36 0xb2391b10 in desktop::SplashScreen::getInstance (rSMgr=@0xbffcfdec)
 
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    at weak.hxx:91
 
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#37 0xb77d9206 in cppu::OSingleFactoryHelper::createInstanceEveryTime (
 
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    this=0xb33b726c, xContext=@0x1) at Reference.h:359
 
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#38 0xb77d88be in cppu::OSingleFactoryHelper::createInstanceWithContext (
 
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    this=0x0, xContext=@0xb4e41ad8) at Reference.h:359
 
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#39 0xb77d8cb1 in cppu::OFactoryComponentHelper::createInstanceWithContext (
 
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    this=0xb33b7238, xContext=@0xb4e41ad8) at Reference.h:359
 
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#40 0xb77d9988 in cppu::OSingleFactoryHelper::createInstanceWithArgumentsAndContext (this=0x0, rArguments=@0xbffd0160, xContext=@0xb4e41ad8) at Reference.h:359
 
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#41 0xb77da48e in cppu::OFactoryComponentHelper::createInstanceWithArgumentsAndContext (this=0xb33b7238, rArguments=@0xbffd0160, xContext=@0xb4e41ad8)
 
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    at Reference.h:359
 
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#42 0xb77dadce in cppu::ORegistryFactoryHelper::createInstanceWithArgumentsAndContext (this=0xb33b4264, rArguments=@0xbffd0160, xContext=@0xb4e41ad8)
 
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    at Reference.h:366
 
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#43 0xb45f68e9 in stoc_smgr::OServiceManager::createInstanceWithArgumentsAndContext (this=0xb33b42a0, rServiceSpecifier=@0xbffd0130, rArguments=@0xbffd0160,
 
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    xContext=@0xb4e41ad8) at Reference.h:366
 
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#44 0xb45f61a8 in stoc_smgr::OServiceManager::createInstanceWithArguments (
 
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    this=0x1, rServiceSpecifier=@0xbffd0130, rArguments=@0xbffd0160)
 
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    at Reference.h:359
 
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#45 0xb7dbcc21 in desktop::Desktop::OpenSplashScreen (this=0xbffd04a4)
 
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    at Reference.h:121
 
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#46 0xb7dbd296 in desktop::Desktop::Main (this=0xbffd04a4)
 
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    at /so/ws/DEV300/ooo/desktop/source/app/app.cxx:1232
 
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#47 0xb6852372 in ImplSVMain ()
 
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    at /so/ws/DEV300/ooo/vcl/source/app/svmain.cxx:194
 
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#48 0xb68524fd in SVMain () at /so/ws/DEV300/ooo/vcl/source/app/svmain.cxx:235
 
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#49 0xb7de6e23 in soffice_main ()
 
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    at /so/ws/DEV300/ooo/desktop/source/app/sofficemain.cxx:52
 
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#50 0x08048dea in main (argc=1, argv=0xbffd0584) at main.c:38
 
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(gdb) cont
 
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Program exited normally.
 
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(gdb) quit
 
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</pre>
 
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The first call to <code>gconf_client_preload</code> (that presumably does the spawning) accounts for 0.05&nbsp;seconds of real time during start up:
 
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<pre>
 
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$ patch -p 0 <<-\EOF
 
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Index: tags/DEV300_m39/shell/source/backends/gconfbe/gconflayer.cxx
 
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===================================================================
 
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--- tags/DEV300_m39/shell/source/backends/gconfbe/gconflayer.cxx        (revision 266425)
 
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+++ tags/DEV300_m39/shell/source/backends/gconfbe/gconflayer.cxx        (working copy)
 
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@@ -1,3 +1,6 @@
 
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+/*SB*/#include<stdio.h>
 
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+/*SB*/#include<sys/times.h>
 
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+/*SB*/#include<unistd.h>
 
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/*************************************************************************
 
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  *
 
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  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 
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@@ -524,8 +527,10 @@
 
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    GConfValue* aGconfValue;
 
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    int i = 0;
 
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+/*SB*/tms TMS;clock_t TIME=times(&TMS);
 
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    while( m_pPreloadValuesList[i] != NULL )
 
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        gconf_client_preload( aClient, m_pPreloadValuesList[i++], GCONF_CLIENT_PRELOAD_ONELEVEL, NULL );
 
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+/*SB*/TIME=times(&TMS)-TIME;fprintf(stderr,"time %f\n",double(TIME)/sysconf(_SC_CLK_TCK));for(int N=0;N<i;++N)fprintf(stderr," preload %d <%s>\n",N,m_pPreloadValuesList[N]);
 
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    for( i = 0; i < m_nConfigurationValues; i++ )
 
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    {
 
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EOF
 
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</pre>
 
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<pre>
 
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$ opt/openoffice.org3/program/soffice.bin
 
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time 0.050000
 
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preload 0 </desktop/gnome/interface>
 
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time 0.010000
 
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preload 0 </desktop/gnome/url-handlers/mailto>
 
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time 0.000000
 
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</pre>
 
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The overhead of the <code>soffice</code> wrapper script around <code>soffice.bin</code> is roughly as follows (see [http://qa.openoffice.org/issues/show_bug.cgi?id=97491 issue 97491] &ldquo;"soffice" now being binary instead of shellscript&rdquo; for temporary problems with the <code>soffice</code> wrapper script), where <code>javaldx</code> and <code>pagein</code> are among the executables called from the script:
 
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<pre>
 
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$ rm opt/openoffice.org3/program/soffice.bin
 
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$ ln -s /bin/true opt/openoffice.org3/program/soffice.bin
 
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$ time opt/openoffice.org3/program/soffice
 
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real    0m0.170s
 
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user    0m0.060s
 
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sys    0m0.110s
 
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$ time opt/openoffice.org3/program/../basis-link/ure-link/bin/javaldx "-env:INIFILENAME=vnd.sun.star.pathname:${PWD?}/opt/openoffice.org3/program/redirectrc"
 
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/usr/java/jdk1.6.0_03/jre/lib/i386/client:/usr/java/jdk1.6.0_03/jre/lib/i386/native_threads:/usr/java/jdk1.6.0_03/jre/lib/i386
 
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real    0m0.024s
 
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user    0m0.020s
 
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sys    0m0.000s
 
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$ time opt/openoffice.org3/program/../basis-link/program/pagein "-L${PWD?}/opt/openoffice.org3/program/../basis-link/program" @pagein-common
 
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real    0m0.102s
 
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user    0m0.020s
 
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sys    0m0.080s
 
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</pre>
 

Revision as of 14:15, 9 February 2009

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

Retrieved from "https://wiki.openoffice.org/w/index.php?title=User:Sb&oldid=111094"
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