RAII wrapper for a tracing session. More...

#include <TracingSession.hh>

Public Member Functions
	TracingSession () noexcept
	Start a system tracing session.

	TracingSession (std::string_view filename) noexcept
	Start an in-process tracing session.

	~TracingSession ()
	Block until the current session is closed.

void	start () noexcept
	Start the profiling session.

	CELER_DELETE_COPY_MOVE (TracingSession)

Detailed Description

RAII wrapper for a tracing session.

Constructors will only configure and initialize the session. It needs to be started explicitly by calling TracingSession::start Only a single tracing mode is supported. If you are only interested in application-level events (ScopedProfiling and trace_counter), then the in-process mode is sufficient and is enabled by providing the trace data filename to the constructor. When using in-process tracing, the buffer size can be configured by setting CELER_PERFETTO_BUFFER_SIZE_MB.

If no filename is provided, start a system tracing session which records both application-level events and kernel events. Root privilege and Linux ftrace https://kernel.org/doc/Documentation/trace/ftrace.txt are required. To start the system daemons using the perfetto backend, see https://perfetto.dev/docs/quickstart/linux-tracing#capturing-a-trace

TODO: Support multiple tracing mode.

The documentation for this class was generated from the following files:

Public Member Functions

Detailed Description