support off-cpu profiling data #8

milianw · 2016-12-23T13:23:59Z

perf data for off-cpu profiling, or sleep-time profiling, uses tracepoints instead of samples. Extend perfparser upstream as needed and visualize the sleep time data in hotspot.

tmcguire · 2017-01-25T09:36:50Z

Wall clock time (on CPU time + off CPU time) would actually the first thing I'd look at, too see where my program is taking time. So I'd like to have the ability to see the wall clock time. It probably makes sense to offer wall clock time, on-cpu time and off-cpu time views.

What would be super useful is also to distinguish off-cpu time into "the application has nothing to do and is sleeping until something happens" (e.g. the Qt event loop is simply waiting for events, which is ok) and into "the application is blocking on something (e.g. IO), which blocks the main loop" (which is not ok). Maybe that can be done with specialized Qt support in hotspot.

tmcguire · 2017-01-25T09:46:08Z

A bit related to that would be showing the process state (running, ready to run, blocked, ...) in a timeline, similar to what Trace Compass does.

milianw · 2017-01-25T12:14:05Z

Yep, all good ideas. The way I envision this, is that when we open a perf data file, the timeline adapts automatically to what is in there:

if it contains samples, this is essentially on-CPU data
if it contains scheduler information, we can show process state and deduce off-CPU data
if it contains both, then we display both

So the distinction between "only on-CPU", "only off-CPU", and "both" only happens at record time, and thus only affects us via #11. The visualization and analysis part, which is what I want to track with this issue here, has to adapt dynamically to what is available in the perf data.

tmcguire · 2017-08-08T19:08:26Z

A completely different option to get off-cpu time might be to use eBPF, see https://github.com/iovisor/bcc/blob/master/tools/offcputime.py

milianw · 2017-08-10T11:53:57Z

eBPF cannot do DWARF-based unwinding, which is imo essential for user space applications. I already have parts of this task implemented locally, based on perf record --switch-events ..., which is pretty neat.

When we open a perf data file that contains scheduler switch events, i.e. a data file generated via `perf record --switch-events ...`, hotspot will now measure the per-thread and overall off-CPU and on-CPU times. This already gives some interesting insight into whether your application is CPU bound, or rather suffering from I/O, locking or similar issues. Note that this is just a first step towards solving issue #8. For proper off-CPU profiling, we also need to get backtraces to figure out where the sleeping comes from. Additionally, we will need to extend the record page to add the `--switch-events` switch by default.

Also fixes UBSAN warning: ``` /home/milian/projects/kdab/rnd/hotspot/tests/modeltests/tst_callgraphgenerator.cpp:95:39: runtime error: downcast of address 0x7ffc49b7e3d0 which does not point to an object of type 'QApplication' 0x7ffc49b7e3d0: note: object is of type 'QCoreApplication' 00 00 00 80 b0 16 f1 cb 9b 7f 00 00 c0 33 02 00 e0 60 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ^~~~~~~~~~~~~~~~~~~~~~~ vptr for 'QCoreApplication' #0 0x561bbb751a01 in TestCallgraphGenerator::callerCalleeResults(QString const&) /home/milian/projects/kdab/rnd/hotspot/tests/modeltests/tst_callgraphgenerator.cpp:95 #1 0x561bbb74f1d2 in TestCallgraphGenerator::testParent() /home/milian/projects/kdab/rnd/hotspot/tests/modeltests/tst_callgraphgenerator.cpp:42 #2 0x561bbb7408a2 in TestCallgraphGenerator::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) /home/milian/projects/kdab/rnd/hotspot/build-dev-asan/tests/modeltests/tst_callgraphgenerator_autogen/include/tst_callgraphgenerator.moc:79 #3 0x7f9bcbc9c23d in QMetaMethod::invoke(QObject*, Qt::ConnectionType, QGenericReturnArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument) const (/usr/lib/libQt5Core.so.5+0x29c23d) #4 0x7f9bce529a6b in QTest::qRun() (/usr/lib/libQt5Test.so.5+0x1ba6b) #5 0x7f9bce52ac40 in QTest::qExec(QObject*, int, char**) (/usr/lib/libQt5Test.so.5+0x1cc40) #6 0x561bbb7401fe in main /home/milian/projects/kdab/rnd/hotspot/tests/modeltests/tst_callgraphgenerator.cpp:130 #7 0x7f9bcaa2928f (/usr/lib/libc.so.6+0x2928f) #8 0x7f9bcaa29349 in __libc_start_main (/usr/lib/libc.so.6+0x29349) #9 0x561bbb6fb344 in _start (/home/milian/projects/kdab/rnd/hotspot/build-dev-asan/tests/modeltests/tst_callgraphgenerator+0x6c2344) ```

The crash is caused because the destructor is called in one thread while other threads still execute. This patch waits in the destructor till all threads terminate. Backtrace: ==91946==ERROR: AddressSanitizer: heap-use-after-free on address 0x513000001bb9 at pc 0x5555566c3173 bp 0x7fffca5fe900 sp 0x7fffca5fe8f0 READ of size 1 at 0x513000001bb9 thread T25 (GlobalQueue[06]) #0 0x5555566c3172 in std::__atomic_base<bool>::load(std::memory_order) const /usr/include/c++/14.1.1/bits/atomic_base.h:501 #1 0x5555566c3172 in std::atomic<bool>::operator bool() const /usr/include/c++/14.1.1/atomic:92 #2 0x55555667846a in operator() /home/lieven/KDAB/hotspot/src/parsers/perf/perfparser.cpp:1684 #3 0x5555566c10bc in call /usr/include/qt/QtCore/qobjectdefs_impl.h:146 #4 0x5555566b9353 in call<QtPrivate::List<QProcess::ProcessError>, void> /usr/include/qt/QtCore/qobjectdefs_impl.h:256 #5 0x5555566b1239 in impl /usr/include/qt/QtCore/qobjectdefs_impl.h:443 #6 0x7ffff46df99d (/usr/lib/libQt5Core.so.5+0x2df99d) (BuildId: 5ae775b980e5842fcce9c0a035de95718227fa6e) #7 0x7ffff4630793 in QProcess::errorOccurred(QProcess::ProcessError) (/usr/lib/libQt5Core.so.5+0x230793) (BuildId: 5ae775b980e5842fcce9c0a035de95718227fa6e) #8 0x7ffff462c846 (/usr/lib/libQt5Core.so.5+0x22c846) (BuildId: 5ae775b980e5842fcce9c0a035de95718227fa6e) #9 0x7ffff4630f6c (/usr/lib/libQt5Core.so.5+0x230f6c) (BuildId: 5ae775b980e5842fcce9c0a035de95718227fa6e) #10 0x7ffff46df961 (/usr/lib/libQt5Core.so.5+0x2df961) (BuildId: 5ae775b980e5842fcce9c0a035de95718227fa6e) #11 0x7ffff46e096d in QSocketNotifier::activated(QSocketDescriptor, QSocketNotifier::Type, QSocketNotifier::QPrivateSignal) (/usr/lib/libQt5Core.so.5+0x2e096d) (BuildId: 5ae775b980e5842fcce9c0a035de95718227fa6e) #12 0x7ffff46e0aa4 in QSocketNotifier::event(QEvent*) (/usr/lib/libQt5Core.so.5+0x2e0aa4) (BuildId: 5ae775b980e5842fcce9c0a035de95718227fa6e) #13 0x7ffff5d56330 in QApplicationPrivate::notify_helper(QObject*, QEvent*) (/usr/lib/libQt5Widgets.so.5+0x156330) (BuildId: 254b52226c3f04da1b93d83e86adb3e3cffb6f76) #14 0x7ffff46ab967 in QCoreApplication::notifyInternal2(QObject*, QEvent*) (/usr/lib/libQt5Core.so.5+0x2ab967) (BuildId: 5ae775b980e5842fcce9c0a035de95718227fa6e) #15 0x7ffff46f8f0d (/usr/lib/libQt5Core.so.5+0x2f8f0d) (BuildId: 5ae775b980e5842fcce9c0a035de95718227fa6e) #16 0x7ffff2314a88 (/usr/lib/libglib-2.0.so.0+0x5ca88) (BuildId: 8880230af7e37f2edbd90b79170aead80dde617a) #17 0x7ffff23769b6 (/usr/lib/libglib-2.0.so.0+0xbe9b6) (BuildId: 8880230af7e37f2edbd90b79170aead80dde617a) #18 0x7ffff2313f94 in g_main_context_iteration (/usr/lib/libglib-2.0.so.0+0x5bf94) (BuildId: 8880230af7e37f2edbd90b79170aead80dde617a) #19 0x7ffff46fa27e in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (/usr/lib/libQt5Core.so.5+0x2fa27e) (BuildId: 5ae775b980e5842fcce9c0a035de95718227fa6e) #20 0x7ffff46a372b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (/usr/lib/libQt5Core.so.5+0x2a372b) (BuildId: 5ae775b980e5842fcce9c0a035de95718227fa6e) #21 0x55555667a9c9 in operator() /home/lieven/KDAB/hotspot/src/parsers/perf/perfparser.cpp:1703 #22 0x5555566c2f6f in run /usr/include/KF5/ThreadWeaver/threadweaver/lambda.h:30 #23 0x7ffff7f5f5ad in ThreadWeaver::Executor::run(QSharedPointer<ThreadWeaver::JobInterface> const&, ThreadWeaver::Thread*) (/usr/lib/libKF5ThreadWeaver.so.5+0x125ad) (BuildId: 200cb669eff8ffb9ace9b7b396df6403668 5aed2) #24 0x7ffff7f604f5 in ThreadWeaver::Job::execute(QSharedPointer<ThreadWeaver::JobInterface> const&, ThreadWeaver::Thread*) (/usr/lib/libKF5ThreadWeaver.so.5+0x134f5) (BuildId: 200cb669eff8ffb9ace9b7b396df64036685 aed2) #25 0x7ffff7f63f01 in ThreadWeaver::Thread::run() (/usr/lib/libKF5ThreadWeaver.so.5+0x16f01) (BuildId: 200cb669eff8ffb9ace9b7b396df64036685aed2) #26 0x7ffff44f258a (/usr/lib/libQt5Core.so.5+0xf258a) (BuildId: 5ae775b980e5842fcce9c0a035de95718227fa6e) #27 0x7ffff785cc79 in asan_thread_start /usr/src/debug/gcc/gcc/libsanitizer/asan/asan_interceptors.cpp:234 #28 0x7ffff36a6dec (/usr/lib/libc.so.6+0x92dec) (BuildId: 32a656aa5562eece8c59a585f5eacd6cf5e2307b) #29 0x7ffff372a0db (/usr/lib/libc.so.6+0x1160db) (BuildId: 32a656aa5562eece8c59a585f5eacd6cf5e2307b) 0x513000001bb9 is located 313 bytes inside of 336-byte region [0x513000001a80,0x513000001bd0) freed by thread T0 here: #0 0x7ffff78fe7e2 in operator delete(void*, unsigned long) /usr/src/debug/gcc/gcc/libsanitizer/asan/asan_new_delete.cpp:164 #1 0x555556670dca in PerfParser::~PerfParser() /home/lieven/KDAB/hotspot/src/parsers/perf/perfparser.cpp:1479 #2 0x7ffff46d5264 in QObjectPrivate::deleteChildren() (/usr/lib/libQt5Core.so.5+0x2d5264) (BuildId: 5ae775b980e5842fcce9c0a035de95718227fa6e) #3 0x7ffff5d7abf8 in QWidget::~QWidget() (/usr/lib/libQt5Widgets.so.5+0x17abf8) (BuildId: 254b52226c3f04da1b93d83e86adb3e3cffb6f76) #4 0x5555567be0a6 in MainWindow::~MainWindow() /home/lieven/KDAB/hotspot/src/mainwindow.cpp:272 #5 0x5555567be3d7 in MainWindow::~MainWindow() /home/lieven/KDAB/hotspot/src/mainwindow.cpp:272 #6 0x7ffff46d1a7b in QObject::event(QEvent*) (/usr/lib/libQt5Core.so.5+0x2d1a7b) (BuildId: 5ae775b980e5842fcce9c0a035de95718227fa6e) #7 0x7ffff6a9803d in KXmlGuiWindow::event(QEvent*) (/usr/lib/libKF5XmlGui.so.5+0x8b03d) (BuildId: 47e6c6148b6e322993e79bc55d54257f5f570e1c) previously allocated by thread T0 here: #0 0x7ffff78fd682 in operator new(unsigned long) /usr/src/debug/gcc/gcc/libsanitizer/asan/asan_new_delete.cpp:95 #1 0x5555567affca in MainWindow::MainWindow(QWidget*) /home/lieven/KDAB/hotspot/src/mainwindow.cpp:93 #2 0x5555566539da in main /home/lieven/KDAB/hotspot/src/main.cpp:220 #3 0x7ffff3639c87 (/usr/lib/libc.so.6+0x25c87) (BuildId: 32a656aa5562eece8c59a585f5eacd6cf5e2307b) #4 0x7ffff3639d4b in __libc_start_main (/usr/lib/libc.so.6+0x25d4b) (BuildId: 32a656aa5562eece8c59a585f5eacd6cf5e2307b) #5 0x5555565d5054 in _start (/home/lieven/KDAB/hotspot/build-dev-asan/bin/hotspot+0x1081054) (BuildId: a68032c20b67d2759bc6ace66427a8e3b02fa3e6) Thread T25 (GlobalQueue[06]) created by T21 (GlobalQueue[02]) here: #0 0x7ffff78f38fb in pthread_create /usr/src/debug/gcc/gcc/libsanitizer/asan/asan_interceptors.cpp:245 #1 0x7ffff44ee379 in QThread::start(QThread::Priority) (/usr/lib/libQt5Core.so.5+0xee379) (BuildId: 5ae775b980e5842fcce9c0a035de95718227fa6e) #2 0x7ffff7f6749c in ThreadWeaver::Weaver::adjustInventory(int) (/usr/lib/libKF5ThreadWeaver.so.5+0x1a49c) (BuildId: 200cb669eff8ffb9ace9b7b396df64036685aed2) Thread T21 (GlobalQueue[02]) created by T0 here: #0 0x7ffff78f38fb in pthread_create /usr/src/debug/gcc/gcc/libsanitizer/asan/asan_interceptors.cpp:245 #1 0x7ffff44ee379 in QThread::start(QThread::Priority) (/usr/lib/libQt5Core.so.5+0xee379) (BuildId: 5ae775b980e5842fcce9c0a035de95718227fa6e) #2 0x7ffff7f6749c in ThreadWeaver::Weaver::adjustInventory(int) (/usr/lib/libKF5ThreadWeaver.so.5+0x1a49c) (BuildId: 200cb669eff8ffb9ace9b7b396df64036685aed2) fixes: #654

The crash is caused because the destructor is called in one thread while other threads still execute. This patch waits in the destructor till all threads terminate. Backtrace: ==91946==ERROR: AddressSanitizer: heap-use-after-free on address 0x513000001bb9 at pc 0x5555566c3173 bp 0x7fffca5fe900 sp 0x7fffca5fe8f0 READ of size 1 at 0x513000001bb9 thread T25 (GlobalQueue[06]) #0 0x5555566c3172 in std::__atomic_base<bool>::load(std::memory_order) const /usr/include/c++/14.1.1/bits/atomic_base.h:501 #1 0x5555566c3172 in std::atomic<bool>::operator bool() const /usr/include/c++/14.1.1/atomic:92 #2 0x55555667846a in operator() /tmp/hotspot/src/parsers/perf/perfparser.cpp:1684 #3 0x5555566c10bc in call /usr/include/qt/QtCore/qobjectdefs_impl.h:146 #4 0x5555566b9353 in call<QtPrivate::List<QProcess::ProcessError>, void> /usr/include/qt/QtCore/qobjectdefs_impl.h:256 #5 0x5555566b1239 in impl /usr/include/qt/QtCore/qobjectdefs_impl.h:443 #6 0x7ffff46df99d (/usr/lib/libQt5Core.so.5+0x2df99d) (BuildId: 5ae775b980e5842fcce9c0a035de95718227fa6e) #7 0x7ffff4630793 in QProcess::errorOccurred(QProcess::ProcessError) (/usr/lib/libQt5Core.so.5+0x230793) (BuildId: 5ae775b980e5842fcce9c0a035de95718227fa6e) #8 0x7ffff462c846 (/usr/lib/libQt5Core.so.5+0x22c846) (BuildId: 5ae775b980e5842fcce9c0a035de95718227fa6e) #9 0x7ffff4630f6c (/usr/lib/libQt5Core.so.5+0x230f6c) (BuildId: 5ae775b980e5842fcce9c0a035de95718227fa6e) #10 0x7ffff46df961 (/usr/lib/libQt5Core.so.5+0x2df961) (BuildId: 5ae775b980e5842fcce9c0a035de95718227fa6e) #11 0x7ffff46e096d in QSocketNotifier::activated(QSocketDescriptor, QSocketNotifier::Type, QSocketNotifier::QPrivateSignal) (/usr/lib/libQt5Core.so.5+0x2e096d) (BuildId: 5ae775b980e5842fcce9c0a035de95718227fa6e) #12 0x7ffff46e0aa4 in QSocketNotifier::event(QEvent*) (/usr/lib/libQt5Core.so.5+0x2e0aa4) (BuildId: 5ae775b980e5842fcce9c0a035de95718227fa6e) #13 0x7ffff5d56330 in QApplicationPrivate::notify_helper(QObject*, QEvent*) (/usr/lib/libQt5Widgets.so.5+0x156330) (BuildId: 254b52226c3f04da1b93d83e86adb3e3cffb6f76) #14 0x7ffff46ab967 in QCoreApplication::notifyInternal2(QObject*, QEvent*) (/usr/lib/libQt5Core.so.5+0x2ab967) (BuildId: 5ae775b980e5842fcce9c0a035de95718227fa6e) #15 0x7ffff46f8f0d (/usr/lib/libQt5Core.so.5+0x2f8f0d) (BuildId: 5ae775b980e5842fcce9c0a035de95718227fa6e) #16 0x7ffff2314a88 (/usr/lib/libglib-2.0.so.0+0x5ca88) (BuildId: 8880230af7e37f2edbd90b79170aead80dde617a) #17 0x7ffff23769b6 (/usr/lib/libglib-2.0.so.0+0xbe9b6) (BuildId: 8880230af7e37f2edbd90b79170aead80dde617a) #18 0x7ffff2313f94 in g_main_context_iteration (/usr/lib/libglib-2.0.so.0+0x5bf94) (BuildId: 8880230af7e37f2edbd90b79170aead80dde617a) #19 0x7ffff46fa27e in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (/usr/lib/libQt5Core.so.5+0x2fa27e) (BuildId: 5ae775b980e5842fcce9c0a035de95718227fa6e) #20 0x7ffff46a372b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (/usr/lib/libQt5Core.so.5+0x2a372b) (BuildId: 5ae775b980e5842fcce9c0a035de95718227fa6e) #21 0x55555667a9c9 in operator() /tmp/hotspot/src/parsers/perf/perfparser.cpp:1703 #22 0x5555566c2f6f in run /usr/include/KF5/ThreadWeaver/threadweaver/lambda.h:30 #23 0x7ffff7f5f5ad in ThreadWeaver::Executor::run(QSharedPointer<ThreadWeaver::JobInterface> const&, ThreadWeaver::Thread*) (/usr/lib/libKF5ThreadWeaver.so.5+0x125ad) (BuildId: 200cb669eff8ffb9ace9b7b396df6403668 5aed2) #24 0x7ffff7f604f5 in ThreadWeaver::Job::execute(QSharedPointer<ThreadWeaver::JobInterface> const&, ThreadWeaver::Thread*) (/usr/lib/libKF5ThreadWeaver.so.5+0x134f5) (BuildId: 200cb669eff8ffb9ace9b7b396df64036685 aed2) #25 0x7ffff7f63f01 in ThreadWeaver::Thread::run() (/usr/lib/libKF5ThreadWeaver.so.5+0x16f01) (BuildId: 200cb669eff8ffb9ace9b7b396df64036685aed2) #26 0x7ffff44f258a (/usr/lib/libQt5Core.so.5+0xf258a) (BuildId: 5ae775b980e5842fcce9c0a035de95718227fa6e) #27 0x7ffff785cc79 in asan_thread_start /usr/src/debug/gcc/gcc/libsanitizer/asan/asan_interceptors.cpp:234 #28 0x7ffff36a6dec (/usr/lib/libc.so.6+0x92dec) (BuildId: 32a656aa5562eece8c59a585f5eacd6cf5e2307b) #29 0x7ffff372a0db (/usr/lib/libc.so.6+0x1160db) (BuildId: 32a656aa5562eece8c59a585f5eacd6cf5e2307b) 0x513000001bb9 is located 313 bytes inside of 336-byte region [0x513000001a80,0x513000001bd0) freed by thread T0 here: #0 0x7ffff78fe7e2 in operator delete(void*, unsigned long) /usr/src/debug/gcc/gcc/libsanitizer/asan/asan_new_delete.cpp:164 #1 0x555556670dca in PerfParser::~PerfParser() /tmp/hotspot/src/parsers/perf/perfparser.cpp:1479 #2 0x7ffff46d5264 in QObjectPrivate::deleteChildren() (/usr/lib/libQt5Core.so.5+0x2d5264) (BuildId: 5ae775b980e5842fcce9c0a035de95718227fa6e) #3 0x7ffff5d7abf8 in QWidget::~QWidget() (/usr/lib/libQt5Widgets.so.5+0x17abf8) (BuildId: 254b52226c3f04da1b93d83e86adb3e3cffb6f76) #4 0x5555567be0a6 in MainWindow::~MainWindow() /tmp/hotspot/src/mainwindow.cpp:272 #5 0x5555567be3d7 in MainWindow::~MainWindow() /tmp/hotspot/src/mainwindow.cpp:272 #6 0x7ffff46d1a7b in QObject::event(QEvent*) (/usr/lib/libQt5Core.so.5+0x2d1a7b) (BuildId: 5ae775b980e5842fcce9c0a035de95718227fa6e) #7 0x7ffff6a9803d in KXmlGuiWindow::event(QEvent*) (/usr/lib/libKF5XmlGui.so.5+0x8b03d) (BuildId: 47e6c6148b6e322993e79bc55d54257f5f570e1c) previously allocated by thread T0 here: #0 0x7ffff78fd682 in operator new(unsigned long) /usr/src/debug/gcc/gcc/libsanitizer/asan/asan_new_delete.cpp:95 #1 0x5555567affca in MainWindow::MainWindow(QWidget*) /tmp/hotspot/src/mainwindow.cpp:93 #2 0x5555566539da in main /tmp/hotspot/src/main.cpp:220 #3 0x7ffff3639c87 (/usr/lib/libc.so.6+0x25c87) (BuildId: 32a656aa5562eece8c59a585f5eacd6cf5e2307b) #4 0x7ffff3639d4b in __libc_start_main (/usr/lib/libc.so.6+0x25d4b) (BuildId: 32a656aa5562eece8c59a585f5eacd6cf5e2307b) #5 0x5555565d5054 in _start (/tmp/hotspot/build-dev-asan/bin/hotspot+0x1081054) (BuildId: a68032c20b67d2759bc6ace66427a8e3b02fa3e6) Thread T25 (GlobalQueue[06]) created by T21 (GlobalQueue[02]) here: #0 0x7ffff78f38fb in pthread_create /usr/src/debug/gcc/gcc/libsanitizer/asan/asan_interceptors.cpp:245 #1 0x7ffff44ee379 in QThread::start(QThread::Priority) (/usr/lib/libQt5Core.so.5+0xee379) (BuildId: 5ae775b980e5842fcce9c0a035de95718227fa6e) #2 0x7ffff7f6749c in ThreadWeaver::Weaver::adjustInventory(int) (/usr/lib/libKF5ThreadWeaver.so.5+0x1a49c) (BuildId: 200cb669eff8ffb9ace9b7b396df64036685aed2) Thread T21 (GlobalQueue[02]) created by T0 here: #0 0x7ffff78f38fb in pthread_create /usr/src/debug/gcc/gcc/libsanitizer/asan/asan_interceptors.cpp:245 #1 0x7ffff44ee379 in QThread::start(QThread::Priority) (/usr/lib/libQt5Core.so.5+0xee379) (BuildId: 5ae775b980e5842fcce9c0a035de95718227fa6e) #2 0x7ffff7f6749c in ThreadWeaver::Weaver::adjustInventory(int) (/usr/lib/libKF5ThreadWeaver.so.5+0x1a49c) (BuildId: 200cb669eff8ffb9ace9b7b396df64036685aed2) fixes: #654

milianw added the enhancement label Dec 23, 2016

milianw modified the milestone: v1.1.0 Dec 23, 2016

milianw added this to the v1.2.0 milestone Sep 25, 2017

milianw closed this as completed in 2a8de11 Dec 29, 2017

Germano0 mentioned this issue Aug 19, 2023

hotspot crashed during disassembly #502

Closed

Provide feedback

Saved searches

Use saved searches to filter your results more quickly

support off-cpu profiling data #8

support off-cpu profiling data #8

milianw commented Dec 23, 2016

tmcguire commented Jan 25, 2017

tmcguire commented Jan 25, 2017

milianw commented Jan 25, 2017

tmcguire commented Aug 8, 2017

milianw commented Aug 10, 2017

support off-cpu profiling data #8

support off-cpu profiling data #8

Comments

milianw commented Dec 23, 2016

tmcguire commented Jan 25, 2017

tmcguire commented Jan 25, 2017

milianw commented Jan 25, 2017

tmcguire commented Aug 8, 2017

milianw commented Aug 10, 2017