lisa.trace

Trace Parser Module

Classes

AndTraceEventChecker	Check that all the given event checkers are satisfied.
AssociativeTraceEventChecker	Base class for associative operators like and and or.
CPU	Alias to int used for CPU IDs.
CollectorBase	Base class for devlib.collector.CollectorBase-based collectors using composition.
ComposedCollector	Compose multiple lisa.trace.CollectorBase together.
CustomFieldsTxtEventParser	Subclass of TxtEventParser to be used for funky formats.
DmesgCollector	Wrapper around devlib.collector.dmesg.DmesgCollector.
DynamicTraceEventChecker	Do not check anything, but exposes the information that one of the group of events will be used.
EmptyTraceEventChecker	Check for no event at all.
EventParserBase	Base class for trace event parser.
FtraceCollector	Thin wrapper around devlib.collector.ftrace.FtraceCollector.
FtraceConf	Configuration class of FtraceCollector.
HRTxtTraceParser	Parse text trace in their human readable format (as opposed to the raw format).
MetaTxtTraceParser	Textual trace parser to parse meta-events.
MockTraceParser	Mock parser that just returns the dataframes it was given.
OptionalTraceEventChecker	Do not check anything, but exposes the information that the events may be used if present.
OrTraceEventChecker	Check that one of the given event checkers is satisfied.
PrintTxtEventParser	Event parser for the folling events, displayed in non-raw format by trace-cmd:.
SimpleTxtTraceParser	Simple text trace parser (base) class.
SysTraceParser	Parse Google’s systrace format.
Trace	This class provides a way to access event dataframes and ties together various low-level moving pieces to make that happen.
TraceBase	Base class for all public trace classes.
TraceDumpTraceParser	trace.dat parser shipped by LISA.
TraceEventChecker	Check for one single event.
TraceEventCheckerBase	ABC for events checker classes.
TraceParserBase	Abstract Base Class for trace parsers.
TxtEventParser	Trace event parser for raw output of trace-cmd report -R trace.dat.
TxtTraceParser	Text trace parser for the raw output of trace-cmd report -R trace.dat.
TxtTraceParserBase	Text trace parser base class.

Functions

__getattr__()
may_use_events()	Same as requires_events() but just exposes some events that may be used if presents.
requires_events()	Decorator for methods that require some given trace events.
requires_one_event_of()	Same as requires_events() with logical OR semantic.
will_use_events_from()	Same as requires_events() but just exposes some events groups that will be used, depending on some dynamic factor.

Exceptions

DroppedTraceEventError	Raised when some events were dropped from the ftrace ring buffer because of lack of space.
MissingMetadataError	Raised when a given metadata is not available.
MissingTraceEventError	param missing_events: The missing trace events :type missing_events: TraceEventCheckerBase or list(str).
TraceDumpError	Exception containing errors forwarded from the trace-dump parser.