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From GitBox <...@apache.org>
Subject [GitHub] cjolivier01 commented on a change in pull request #8972: Profiling enhancements, python API, vtune and chrome tracing objects, etc.
Date Thu, 01 Jan 1970 00:00:00 GMT
cjolivier01 commented on a change in pull request #8972: Profiling enhancements, python API,
vtune and chrome tracing objects, etc.
URL: https://github.com/apache/incubator-mxnet/pull/8972#discussion_r169480086
 
 

 ##########
 File path: python/mxnet/profiler.py
 ##########
 @@ -52,7 +58,298 @@ def profiler_set_state(state='stop'):
     state2int = {'stop': 0, 'run': 1}
     check_call(_LIB.MXSetProfilerState(ctypes.c_int(state2int[state])))
 
-def dump_profile():
+def dump(finished=True):
     """Dump profile and stop profiler. Use this to save profile
-    in advance in case your program cannot exit normally."""
-    check_call(_LIB.MXDumpProfile())
+    in advance in case your program cannot exit normally.
+
+    Parameters
+    ----------
+    finished : boolean
+        Indicates whether to stop statistical output (dumping) after this dump.
+        Default is True
+    """
+    fin = 1 if finished is True else False
+    check_call(_LIB.MXDumpProfile(fin))
+
+def aggregate_stats_str(reset=False):
+    """Return a printable string of aggregate profile stats.
+    Parameters
+    ----------
+    reset: boolean
+        Indicates whether to clean aggeregate statistical data collected up to this point
+    """
+    debug_str = ctypes.c_char_p()
+    do_reset = 1 if reset is True else 0
+    check_call(_LIB.MXAggregateProfileStatsPrint(ctypes.byref(debug_str), int(do_reset)))
+    return py_str(debug_str.value)
+
+def pause():
+    check_call(_LIB.MXProfilePause(int(1)))
+
+def resume():
+    check_call(_LIB.MXProfilePause(int(0)))
+
+class Domain(object):
+    """Profiling domain, used to group sub-objects like tasks, counters, etc into categories
+    Serves as part of 'categories' for chrome://tracing
+    Note: Domain handles are never destroyed.
+    """
+    def __init__(self, name):
+        """Profiling Domain class constructor
+            Parameters
+            ----------
+            name : string
+                Name of the domain
+        """
+        self.name = name
+        self.handle = ProfileHandle()
+        check_call(_LIB.MXProfileCreateDomain(c_str(self.name), ctypes.byref(self.handle)))
+
+    def __str__(self):
+        return self.name
+
+    def new_task(self, name):
+        """Create new Task object owned by this domain
+            Parameters
+            ----------
+            name : string
+                Name of the task
+        """
+        return Task(self, name)
+
+    def new_frame(self, name):
+        """Create new Frame object owned by this domain
+            Parameters
+            ----------
+            name : string
+                Name of the frame
+        """
+        return Frame(self, name)
+
+    def new_counter(self, name, value=None):
+        """Create new Counter object owned by this domain
+            Parameters
+            ----------
+            name : string
+                Name of the counter
+        """
+        return Counter(self, name, value)
+
+    def new_marker(self, name):
+        """Create new Marker object owned by this domain
+            Parameters
+            ----------
+            name : string
+                Name of the marker
+        """
+        return Marker(self, name)
+
+class Task(object):
+    """Profiling Task class
+    A task is a logical unit of work performed by a particular thread.
+    Tasks can nest; thus, tasks typically correspond to functions, scopes, or a case block
+    in a switch statement.
+    You can use the Task API to assign tasks to threads.
+    """
+    def __init__(self, domain, name):
+        """Profiling Task class constructor.
+            Parameters
+            ----------
+            domain : Domain object
+                Domain to which this object belongs
+            name : string
+                Name of the task
+        """
+        self.name = name
+        self.handle = ProfileHandle()
+        check_call(_LIB.MXProfileCreateTask(domain.handle,
+                                            c_str(self.name),
+                                            ctypes.byref(self.handle)))
+
+    def __del__(self):
+        if self.handle is not None:
+            check_call(_LIB.MXProfileDestroyHandle(self.handle))
+
+    def start(self):
+        """Start timing scope for this object"""
+        check_call(_LIB.MXProfileDurationStart(self.handle))
+
+    def stop(self):
+        """Stop timing scope for this object"""
+        check_call(_LIB.MXProfileDurationStop(self.handle))
+
+    def __str__(self):
+        return self.name
+
+
+class Frame(object):
+    """Profiling Frame class
+    Use the frame API to insert calls to the desired places in your code and analyze
+    performance per frame, where frame is the time period between frame begin and end points.
+    When frames are displayed in Intel VTune Amplifier, they are displayed in a
+    separate track, so they provide a way to visually separate this data from normal task
data.
+    This is different from Task in that each 'Frame' duration will be a discretely-numbered
+    event in the VTune output, as well as its rate (frame-rate) shown.  This is analogous
to
+    profiling each frame of some visual output, such as rendering a video game frame.
+    """
+    def __init__(self, domain, name):
+        """Profiling Frame class constructor
+            Parameters
+            ----------
+            domain : Domain object
+                Domain to which this object belongs
+            name : string
+                Name of the frame
+        """
+        self.name = name
+        self.handle = ProfileHandle()
+        check_call(_LIB.MXProfileCreateFrame(domain.handle,
+                                             c_str(self.name),
+                                             ctypes.byref(self.handle)))
+
+    def __del__(self):
+        if self.handle is not None:
+            check_call(_LIB.MXProfileDestroyHandle(self.handle))
+
+    def start(self):
+        """Start timing scope for this object"""
+        check_call(_LIB.MXProfileDurationStart(self.handle))
+
+    def stop(self):
+        """Stop timing scope for this object"""
+        check_call(_LIB.MXProfileDurationStop(self.handle))
+
+    def __str__(self):
+        return self.name
+
+
+class Event(object):
+    """Profiling Event class
 
 Review comment:
   ok

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