1) Overview DTrace  https://en.wikipedia.org/wiki/DTrace a comprehensive dynamic tracing framework created by Sun Microsystems for troubleshooting kernel and application problems Linux Tracing Landscape  a Source: “Dynamic Probes for Linux”, Masami Hiramatsu, Tracing Summit 2015 BCC Sanitizers Source: “BPF Tracing Tools”, Brendan Gregg, Linux Plumbers Conference 2019 III. LISA 1) Overview  Linux Integrated

mongodb Backend: Redis - celery.backends.pyredis Backend: Tokyo Tyrant - celery.backends.tyrant Tracing Execution - celery.execute.trace Datastructures - celery.datastructures Logging - celery.log Multiprocessing mongodb Backend: Redis - celery.backends.pyredis Backend: Tokyo Tyrant - celery.backends.tyrant Tracing Execution - celery.execute.trace Datastructures - celery.datastructures Logging - celery.log Multiprocessing next | previous | Celery 1.0.6 (stable) documentation » Internals » Internal Module Reference » Tracing Execution - celery.execute.trace © Copyright 2009, Ask Solem. Created using Sphinx 1.2. index modules

pyredis Backend: Cassandra - celery.backends.cassandra Backend: Tokyo Tyrant - celery.backends.tyrant Tracing Execution - celery.execute.trace Serialization Tools - celery.serialization Datastructures - celery pyredis Backend: Cassandra - celery.backends.cassandra Backend: Tokyo Tyrant - celery.backends.tyrant Tracing Execution - celery.execute.trace Serialization Tools - celery.serialization Datastructures - celery next | previous | Celery 2.0.3 (stable) documentation » Internals » Internal Module Reference » Tracing Execution - celery.execute.trace © Copyright 2009-2010, Ask Solem & contributors. Created using

(which can be set from user_line()). Return a reference to the trace_dispatch() method for further tracing in that scope. dispatch_call(frame, arg) If the debugger should stop on this function call, invoke (which can be set from user_call()). Return a reference to the trace_dispatch() method for further tracing in that scope. dispatch_return(frame, arg) If the debugger should stop on this function return (which can be set from user_return()). Return a reference to the trace_dispatch() method for further tracing in that scope. dispatch_exception(frame, arg) If the debugger should stop at this exception, invokes

(which can be set from user_line()). Return a reference to the trace_dispatch() method for further tracing in that scope. dispatch_call(frame, arg) If the debugger should stop on this function call, invoke (which can be set from user_call()). Return a reference to the trace_dispatch() method for further tracing in that scope. dispatch_return(frame, arg) If the debugger should stop on this function return (which can be set from user_return()). Return a reference to the trace_dispatch() method for further tracing in that scope. dispatch_exception(frame, arg) If the debugger should stop at this exception, invokes

(which can be set from user_line()). Return a reference to the trace_dispatch() method for further tracing in that scope. dispatch_call(frame, arg) If the debugger should stop on this function call, invoke (which can be set from user_call()). Return a reference to the trace_dispatch() method for further tracing in that scope. dispatch_return(frame, arg) If the debugger should stop on this function return (which can be set from user_return()). Return a reference to the trace_dispatch() method for further tracing in that scope. dispatch_exception(frame, arg) If the debugger should stop at this exception, invokes

(which can be set from user_line()). Return a reference to the trace_dispatch() method for further tracing in that scope. dispatch_call(frame, arg) If the debugger should stop on this function call, invoke (which can be set from user_call()). Return a reference to the trace_dispatch() method for further tracing in that scope. dispatch_return(frame, arg) If the debugger should stop on this function return (which can be set from user_return()). Return a reference to the trace_dispatch() method for further tracing in that scope. dispatch_exception(frame, arg) If the debugger should stop at this exception, invokes

(which can be set from user_line()). Return a reference to the trace_dispatch() method for further tracing in that scope. dispatch_call(frame, arg) If the debugger should stop on this function call, invoke (which can be set from user_call()). Return a reference to the trace_dispatch() method for further tracing in that scope. dispatch_return(frame, arg) If the debugger should stop on this function return (which can be set from user_return()). Return a reference to the trace_dispatch() method for further tracing in that scope. dispatch_exception(frame, arg) If the debugger should stop at this exception, invokes

pyredis Backend: Cassandra - celery.backends.cassandra Backend: Tokyo Tyrant - celery.backends.tyrant Tracing Execution - celery.execute.trace Serialization Tools - celery.serialization Datastructures - celery pyredis Backend: Cassandra - celery.backends.cassandra Backend: Tokyo Tyrant - celery.backends.tyrant Tracing Execution - celery.execute.trace Serialization Tools - celery.serialization Datastructures - celery document describes an older version of Celery (2.1). For the latest stable version please go here. Tracing Execution - celery.execute.trace class celery.execute.trace.TaskTrace(task_name, task_id, args,

False, then uses msg as the reason for skipping the test. @test.support.no_tracing(func) Decorator to temporarily turn off tracing for the duration of the test. @test.support.refcount_test(test) Decorator (which can be set from user_line()). Return a reference to the trace_dispatch() method for further tracing in that scope. dispatch_call(frame, arg) If the debugger should stop on this function call, invoke (which can be set from user_call()). Return a reference to the trace_dispatch() method for further tracing in that scope. dispatch_return(frame, arg) If the debugger should stop on this function return