lsst.dax.ppdb.ppdb.Timer Class Reference

Inheritance diagram for lsst.dax.ppdb.ppdb.Timer:

Public Member Functions
def	__init__ (self, name, do_logging=True, log_before_cursor_execute=False)
def	__enter__ (self)
def	__exit__ (self, exc_type, exc_val, exc_tb)

Detailed Description

Timer class defining context manager which tracks execution timing.

Typical use:

    with Timer("timer_name"):
        do_something

On exit from block it will print elapsed time.

See also :py:mod:`timer` module.

Definition at line 49 of file ppdb.py.

Constructor & Destructor Documentation

__init__()

def lsst.dax.ppdb.ppdb.Timer.__init__	(		self,
			name,
			do_logging = True,
			log_before_cursor_execute = False
	)

Definition at line 61 of file ppdb.py.

    def __init__(self, name, do_logging=True, log_before_cursor_execute=False):
        self._log_before_cursor_execute = log_before_cursor_execute
        self._do_logging = do_logging
        self._timer1 = timer.Timer(name)
        self._timer2 = timer.Timer(name + " (before/after cursor)")

Member Function Documentation

__enter__()

def lsst.dax.ppdb.ppdb.Timer.__enter__

(

self

)

Enter context, start timer

Definition at line 67 of file ppdb.py.

    def __enter__(self):
        """
        Enter context, start timer
        """
#         event.listen(engine.Engine, "before_cursor_execute", self._start_timer)
#         event.listen(engine.Engine, "after_cursor_execute", self._stop_timer)
        self._timer1.start()
        return self

__exit__()

def lsst.dax.ppdb.ppdb.Timer.__exit__	(		self,
			exc_type,
			exc_val,
			exc_tb
	)

Exit context, stop and dump timer

Definition at line 76 of file ppdb.py.

    def __exit__(self, exc_type, exc_val, exc_tb):
        """
        Exit context, stop and dump timer
        """
        if exc_type is None:
            self._timer1.stop()
            if self._do_logging:
                self._timer1.dump()
#         event.remove(engine.Engine, "before_cursor_execute", self._start_timer)
#         event.remove(engine.Engine, "after_cursor_execute", self._stop_timer)
        return False

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

• /j/snowflake/release/lsstsw/stack/Linux64/dax_ppdb/19.0.0+1/python/lsst/dax/ppdb/ppdb.py