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Message #43741
[Bug 1300722] Re: hud-service is eating up 100% of one of my CPUs in a poll loop
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https://bugs.launchpad.net/bugs/1300722
Title:
hud-service is eating up 100% of one of my CPUs in a poll loop
Status in Unity HUD:
New
Status in unbuntu-fr Scripts - apt:
Fix Committed
Status in hud package in Ubuntu:
Incomplete
Bug description:
hud-service is polling like crazy:
Context Switches:
PID Process Voluntary Involuntary Total
Ctxt Sw/Sec Ctxt Sw/Sec Ctxt Sw/Sec
2295 hud-service 46084.63 42.94 46127.58 (very high)
2325 hud-service 0.09 0.00 0.09 (very low)
2329 hud-service 0.07 0.00 0.07 (very low)
2340 hud-service 0.05 0.00 0.05 (very low)
Total 46084.84 42.94 46127.78
File I/O operations:
No file I/O operations detected.
System calls traced:
PID Process Syscall Count Rate/Sec
2295 hud-service poll 999983 23124.8503
2295 hud-service write 10 0.2313
2295 hud-service sendmsg 4 0.0925
2325 hud-service restart_syscall 1 0.0231
2329 hud-service restart_syscall 1 0.0231
2340 hud-service restart_syscall 1 0.0231
Total 1000000 23125.2435
(gdb) where
#0 0x00007fda8121cfbd in poll () at ../sysdeps/unix/syscall-template.S:81
#1 0x00007fda7f1bb4b8 in ?? () from /lib/x86_64-linux-gnu/libdbus-1.so.3
#2 0x00007fda7f1ba3ff in ?? () from /lib/x86_64-linux-gnu/libdbus-1.so.3
#3 0x00007fda7f1a49dc in ?? () from /lib/x86_64-linux-gnu/libdbus-1.so.3
#4 0x00007fda7f1a5464 in ?? () from /lib/x86_64-linux-gnu/libdbus-1.so.3
#5 0x00007fda82ce9e65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#6 0x00007fda82d2fc64 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#7 0x00007fda82d30582 in QDBusPendingCallWatcher::waitForFinished() () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#8 0x00007fda83eb940b in DBusMenuImporter::slotMenuAboutToShow() () from /usr/lib/x86_64-linux-gnu/libdbusmenu-qt5.so.2
#9 0x00007fda8435d2a6 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x000000000045ab3f in hud::service::DBusMenuCollector::openMenu(QMenu*, unsigned int&) ()
#11 0x000000000045abd8 in hud::service::DBusMenuCollector::openMenu(QMenu*, unsigned int&) ()
#12 0x000000000045abd8 in hud::service::DBusMenuCollector::openMenu(QMenu*, unsigned int&) ()
#13 0x000000000045abd8 in hud::service::DBusMenuCollector::openMenu(QMenu*, unsigned int&) ()
#14 0x000000000045abd8 in hud::service::DBusMenuCollector::openMenu(QMenu*, unsigned int&) ()
#15 0x000000000045abd8 in hud::service::DBusMenuCollector::openMenu(QMenu*, unsigned int&) ()
#16 0x000000000045ae8d in hud::service::DBusMenuCollector::activate() ()
#17 0x0000000000441e43 in hud::service::WindowImpl::activate() ()
#18 0x0000000000439f6a in hud::service::QueryImpl::updateToken(QSharedPointer<hud::service::Window>) ()
#19 0x000000000043a672 in hud::service::QueryImpl::refresh() ()
#20 0x000000000044b115 in ?? ()
#21 0x00007fda8435d2a6 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#22 0x000000000045662a in hud::service::ApplicationListImpl::FocusedWindowChanged(unsigned int, QString const&, unsigned int) ()
#23 0x00007fda8435d2a6 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#24 0x0000000000467361 in ComCanonicalUnityWindowStackInterface::FocusedWindowChanged(unsigned int, QString const&, unsigned int) ()
#25 0x00000000004678bd in ?? ()
#26 0x0000000000467c63 in ComCanonicalUnityWindowStackInterface::qt_metacall(QMetaObject::Call, int, void**) ()
#27 0x00007fda82cf180f in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#28 0x00007fda8435e22e in QObject::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#29 0x00007fda823d5c2c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#30 0x00007fda823dadf6 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#31 0x00007fda84335c2d in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#32 0x00007fda84337e07 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#33 0x00007fda84382cd3 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#34 0x00007fda833dbe04 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#35 0x00007fda833dc048 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: hud 13.10.1+14.04.20140326-0ubuntu1
ProcVersionSignature: Ubuntu 3.13.0-20.42-generic 3.13.7
Uname: Linux 3.13.0-20-generic x86_64
ApportVersion: 2.14-0ubuntu1
Architecture: amd64
CurrentDesktop: Unity
Date: Tue Apr 1 12:23:11 2014
EcryptfsInUse: Yes
InstallationDate: Installed on 2014-03-25 (7 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20140323)
SourcePackage: hud
UpgradeStatus: No upgrade log present (probably fresh install)
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References
