+// Written by David Megginson, started 2000-12
+//
+// Copyright (C) 2000 David Megginson, david@megginson.com
+//
+// This program is free software; you can redistribute it and/or
+// modify it under the terms of the GNU General Public License as
+// published by the Free Software Foundation; either version 2 of the
+// License, or (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful, but
+// WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+// General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+//
+// $Id$
+
+#ifdef HAVE_CONFIG_H
+# include <simgear_config.h>
+#endif
#include <simgear/debug/logstream.hxx>
#include <simgear/timing/timestamp.hxx>
#include "subsystem_mgr.hxx"
#include <simgear/math/SGMath.hxx>
+#include "SGSmplstat.hxx"
+const int SG_MAX_SUBSYSTEM_EXCEPTIONS = 4;
-const int SG_MAX_SUBSYSTEM_EXCEPTIONS = 4;\f
////////////////////////////////////////////////////////////////////////
// Implementation of SGSubsystem
////////////////////////////////////////////////////////////////////////
+SGSubsystemTimingCb SGSubsystem::reportTimingCb = NULL;
+void* SGSubsystem::reportTimingUserData = NULL;
SGSubsystem::SGSubsystem ()
: _suspended(false)
return _suspended;
}
-
-void
-SGSubsystem::printTimingInformation ()
-{
- SGTimeStamp startTime;
- for ( eventTimeVecIterator i = timingInfo.begin();
- i != timingInfo.end();
- i++) {
- if (i == timingInfo.begin()) {
- startTime = i->getTime();
- } else {
- SGTimeStamp endTime = i->getTime();
- SG_LOG(SG_GENERAL, SG_ALERT, "- Getting to timestamp : "
- << i->getName() << " takes " << endTime - startTime
- << " sec.");
- startTime = endTime;
- }
- }
-}
-
-
-
void SGSubsystem::stamp(const string& name)
{
timingInfo.push_back(TimingInfo(name, SGTimeStamp::now()));
// Implementation of SGSubsystemGroup.
////////////////////////////////////////////////////////////////////////
+class SGSubsystemGroup::Member
+{
+private:
+ Member (const Member &member);
+public:
+ Member ();
+ virtual ~Member ();
+
+ virtual void update (double delta_time_sec);
+
+ void reportTiming(void) { if (reportTimingCb) reportTimingCb(reportTimingUserData, name, &timeStat); }
+ void updateExecutionTime(double time) { timeStat += time;}
+
+ SampleStatistic timeStat;
+ std::string name;
+ SGSubsystem * subsystem;
+ double min_step_sec;
+ double elapsed_sec;
+ bool collectTimeStats;
+ int exceptionCount;
+};
+
+
+
SGSubsystemGroup::SGSubsystemGroup () :
_fixedUpdateTime(-1.0),
_updateTimeRemainder(0.0)
// reverse order to prevent order dependency problems
for (unsigned int i = _members.size(); i > 0; i--)
{
- _members[i-1]->printTimingStatistics();
delete _members[i-1];
}
}
delta_time_sec = _fixedUpdateTime;
}
+ bool recordTime = (reportTimingCb != NULL);
+ SGTimeStamp timeStamp;
while (loopCount-- > 0) {
for (unsigned int i = 0; i < _members.size(); i++)
{
- SGTimeStamp timeStamp = SGTimeStamp::now();
- _members[i]->update(delta_time_sec); // indirect call
- timeStamp = timeStamp - SGTimeStamp::now();
- double b = timeStamp.toUSecs();
- _members[i]->updateExecutionTime(b);
- double threshold = _members[i]->getTimeWarningThreshold();
- if (( b > threshold ) && (b > 10000)) {
- _members[i]->printTimingInformation(b);
- }
+ if (recordTime)
+ timeStamp = SGTimeStamp::now();
+
+ _members[i]->update(delta_time_sec); // indirect call
+
+ if ((recordTime)&&(reportTimingCb))
+ {
+ timeStamp = SGTimeStamp::now() - timeStamp;
+ _members[i]->updateExecutionTime(timeStamp.toUSecs());
+ }
}
} // of multiple update loop
}
-void
-SGSubsystemGroup::collectDebugTiming(bool collect)
+void
+SGSubsystemGroup::reportTiming(void)
{
- for (unsigned int i = 0; i < _members.size(); i++)
+ for (unsigned int i = _members.size(); i > 0; i--)
{
- _members[i]->collectDebugTiming(collect);
+ _members[i-1]->reportTiming();
}
}
_fixedUpdateTime = dt;
}
-void
-SGSubsystemGroup::Member::printTimingStatistics ()
-{
- if (collectTimeStats) {
- double minTime = timeStat.min() / 1000;
- double maxTime = timeStat.max() / 1000;
- double meanTime = timeStat.mean() / 1000;
- double stddev = timeStat.stdDev() / 1000;
-
- char buffer[256];
- snprintf(buffer, 256, "Timing summary for %20s.\n"
- "- mean time: %04.2f ms.\n"
- "- min time : %04.2f ms.\n"
- "- max time : %04.2f ms.\n"
- "- stddev : %04.2f ms.\n", name.c_str(), meanTime, minTime, maxTime, stddev);
- SG_LOG(SG_GENERAL, SG_ALERT, buffer);
- }
-}
-
-
bool
SGSubsystemGroup::has_subsystem (const string &name) const
{
subsystem(0),
min_step_sec(0),
elapsed_sec(0),
- collectTimeStats(false),
exceptionCount(0)
{
}
}
-void
-SGSubsystemGroup::Member::printTimingInformation(double time)
-{
- if (collectTimeStats) {
- SG_LOG(SG_GENERAL, SG_ALERT, "Subsystem Timing Alert : " << time << " " << name);
- subsystem->printTimingInformation();
- }
-}
-
-double SGSubsystemGroup::Member::getTimeWarningThreshold()
-{
- return (timeStat.mean() + 3 * timeStat.stdDev());
-}
-
-void SGSubsystemGroup::Member::updateExecutionTime(double time)
-{
- if (collectTimeStats) {
- timeStat += time;
- }
-}
-
-
-
-
-\f
////////////////////////////////////////////////////////////////////////
// Implementation of SGSubsystemMgr.
////////////////////////////////////////////////////////////////////////
}
}
-void
-SGSubsystemMgr::collectDebugTiming(bool collect)
-{
- for (int i = 0; i < MAX_GROUPS; i++) {
- _groups[i]->collectDebugTiming(collect);
- }
-}
-
void
SGSubsystemMgr::suspend ()
{
return s->second;
}
-// end of fgfs.cxx
+/** Trigger the timing callback to report data for all subsystems. */
+void
+SGSubsystemMgr::reportTiming()
+{
+ for (int i = 0; i < MAX_GROUPS; i++) {
+ _groups[i]->reportTiming();
+ } // of groups iteration
+}
+
+// end of subsystem_mgr.cxx