[Lldb-commits] [lldb] r177811 - Added a python version of the performance tests. It will be good to see if the overhead of python interferes at all with our performance readings. We can try things out with this script and see how things go.
Greg Clayton
gclayton at apple.com
Fri Mar 22 18:44:48 PDT 2013
Author: gclayton
Date: Fri Mar 22 20:44:48 2013
New Revision: 177811
URL: http://llvm.org/viewvc/llvm-project?rev=177811&view=rev
Log:
Added a python version of the performance tests. It will be good to see if the overhead of python interferes at all with our performance readings. We can try things out with this script and see how things go.
Added:
lldb/trunk/examples/python/performance.py (with props)
Added: lldb/trunk/examples/python/performance.py
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/examples/python/performance.py?rev=177811&view=auto
==============================================================================
--- lldb/trunk/examples/python/performance.py (added)
+++ lldb/trunk/examples/python/performance.py Fri Mar 22 20:44:48 2013
@@ -0,0 +1,197 @@
+#!/usr/bin/python
+
+#----------------------------------------------------------------------
+# Be sure to add the python path that points to the LLDB shared library.
+# On MacOSX csh, tcsh:
+# setenv PYTHONPATH /Applications/Xcode.app/Contents/SharedFrameworks/LLDB.framework/Resources/Python
+# On MacOSX sh, bash:
+# export PYTHONPATH=/Applications/Xcode.app/Contents/SharedFrameworks/LLDB.framework/Resources/Python
+#----------------------------------------------------------------------
+
+import commands
+import optparse
+import os
+import platform
+import resource
+import sys
+import time
+
+#----------------------------------------------------------------------
+# Code that auto imports LLDB
+#----------------------------------------------------------------------
+try:
+ # Just try for LLDB in case PYTHONPATH is already correctly setup
+ import lldb
+except ImportError:
+ lldb_python_dirs = list()
+ # lldb is not in the PYTHONPATH, try some defaults for the current platform
+ platform_system = platform.system()
+ if platform_system == 'Darwin':
+ # On Darwin, try the currently selected Xcode directory
+ xcode_dir = commands.getoutput("xcode-select --print-path")
+ if xcode_dir:
+ lldb_python_dirs.append(os.path.realpath(xcode_dir + '/../SharedFrameworks/LLDB.framework/Resources/Python'))
+ lldb_python_dirs.append(xcode_dir + '/Library/PrivateFrameworks/LLDB.framework/Resources/Python')
+ lldb_python_dirs.append('/System/Library/PrivateFrameworks/LLDB.framework/Resources/Python')
+ success = False
+ for lldb_python_dir in lldb_python_dirs:
+ if os.path.exists(lldb_python_dir):
+ if not (sys.path.__contains__(lldb_python_dir)):
+ sys.path.append(lldb_python_dir)
+ try:
+ import lldb
+ except ImportError:
+ pass
+ else:
+ print 'imported lldb from: "%s"' % (lldb_python_dir)
+ success = True
+ break
+ if not success:
+ print "error: couldn't locate the 'lldb' module, please set PYTHONPATH correctly"
+ sys.exit(1)
+
+
+class Timer:
+ def __enter__(self):
+ self.start = time.clock()
+ return self
+
+ def __exit__(self, *args):
+ self.end = time.clock()
+ self.interval = self.end - self.start
+
+class TestCase:
+ """Class that aids in running performance tests."""
+ def __init__(self):
+ self.verbose = False
+ self.debugger = lldb.SBDebugger.Create()
+ self.target = None
+ self.process = None
+ self.thread = None
+ self.launch_info = None
+ self.listener = self.debugger.GetListener()
+
+ def Setup(self, args):
+ self.launch_info = lldb.SBLaunchInfo(args)
+
+ def Run (self, args):
+ assert False, "performance.TestCase.Run() must be subclassed"
+
+ def Launch(self):
+ if self.target:
+ error = lldb.SBError()
+ self.process = self.target.Launch (self.launch_info, error);
+ if not error.Success():
+ print "error: %s" % error.GetCString()
+ if self.process:
+ self.process.GetBroadcaster().AddListener(self.listener, lldb.SBProcess.eBroadcastBitStateChanged | lldb.SBProcess.eBroadcastBitInterrupt);
+ return True
+ return False
+
+ def WaitForNextProcessEvent (self):
+ event = None
+ if self.process:
+ while event is None:
+ process_event = lldb.SBEvent()
+ if self.listener.WaitForEvent (lldb.UINT32_MAX, process_event):
+ state = lldb.SBProcess.GetStateFromEvent (process_event)
+ if self.verbose:
+ print "event = %s" % (lldb.SBDebugger.StateAsCString(state))
+ if lldb.SBProcess.GetRestartedFromEvent(process_event):
+ continue
+ if state == lldb.eStateInvalid or state == lldb.eStateDetached or state == lldb.eStateCrashed or state == lldb.eStateUnloaded or state == lldb.eStateExited:
+ event = process_event
+ elif state == lldb.eStateConnected or state == lldb.eStateAttaching or state == lldb.eStateLaunching or state == lldb.eStateRunning or state == lldb.eStateStepping or state == lldb.eStateSuspended:
+ continue
+ elif state == lldb.eStateStopped:
+ event = process_event
+ call_test_step = True
+ fatal = False
+ selected_thread = False
+ for thread in self.process:
+ frame = thread.GetFrameAtIndex(0)
+ select_thread = False
+ stop_reason = thread.GetStopReason();
+ if self.verbose:
+ print "tid = %#x pc = %#x " % (thread.GetThreadID(),frame.GetPC()),
+ if stop_reason == lldb.eStopReasonNone:
+ if self.verbose:
+ print "none"
+ elif stop_reason == lldb.eStopReasonTrace:
+ select_thread = True
+ if self.verbose:
+ print "trace"
+ elif stop_reason == lldb.eStopReasonPlanComplete:
+ select_thread = True
+ if self.verbose:
+ print "plan complete"
+ elif stop_reason == lldb.eStopReasonThreadExiting:
+ if self.verbose:
+ print "thread exiting"
+ elif stop_reason == lldb.eStopReasonExec:
+ if self.verbose:
+ print "exec"
+ elif stop_reason == lldb.eStopReasonInvalid:
+ if self.verbose:
+ print "invalid"
+ elif stop_reason == lldb.eStopReasonException:
+ select_thread = True
+ if self.verbose:
+ print "exception"
+ fatal = True
+ elif stop_reason == lldb.eStopReasonBreakpoint:
+ select_thread = True
+ if self.verbose:
+ print "breakpoint id = %d.%d" % (thread.GetStopReasonDataAtIndex(0),thread.GetStopReasonDataAtIndex(1))
+ elif stop_reason == lldb.eStopReasonWatchpoint:
+ select_thread = True
+ if self.verbose:
+ print "watchpoint id = %d" % (thread.GetStopReasonDataAtIndex(0))
+ elif stop_reason == lldb.eStopReasonSignal:
+ select_thread = True
+ if self.verbose:
+ print "signal %d" % (thread.GetStopReasonDataAtIndex(0))
+
+ if select_thread and not selected_thread:
+ self.thread = thread;
+ selected_thread = self.process.SetSelectedThread(thread);
+ if fatal:
+ # if self.verbose:
+ # Xcode.RunCommand(self.debugger,"bt all",true);
+ sys.exit(1);
+ return event
+
+
+class TesterTestCase(TestCase):
+
+ def Run (self, args):
+ self.Setup(args)
+ self.verbose = True
+ self.target = self.debugger.CreateTarget(args[0])
+ if self.target:
+ if self.Launch():
+ print resource.getrusage (resource.RUSAGE_SELF)
+ with Timer() as breakpoint_timer:
+ self.target.BreakpointCreateByName("main")
+ self.target.BreakpointCreateByName("malloc")
+ print('Breakpoint took %.03f sec.' % breakpoint_timer.interval)
+ print resource.getrusage (resource.RUSAGE_SELF)
+ event = self.WaitForNextProcessEvent()
+ self.process.Continue()
+ event = self.WaitForNextProcessEvent()
+ self.process.Continue()
+ event = self.WaitForNextProcessEvent()
+ self.process.Continue()
+ event = self.WaitForNextProcessEvent()
+ self.process.Continue()
+ else:
+ print "error: failed to launch process"
+ else:
+ print "error: failed to create target with '%s'" % (args[0])
+
+if __name__ == '__main__':
+ lldb.SBDebugger.Initialize()
+ test = TesterTestCase()
+ test.Run (sys.argv[1:])
+ lldb.SBDebugger.Terminate()
+
\ No newline at end of file
Propchange: lldb/trunk/examples/python/performance.py
------------------------------------------------------------------------------
svn:executable = *
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