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Making a manual mode of operation for measurements, where you can manually call start() and stop() instead of using the function-call syntax 

This is especially useful to take measurements that span multiple test steps, or where you need to have different operations fall under the same measurement

An example of use is in the formatters perf test case

llvm-svn: 177597
This commit is contained in:
Enrico Granata 2013-03-20 23:01:28 +00:00
parent 4536d582fd
commit e7ed0afee2
2 changed files with 54 additions and 10 deletions
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38
lldb/tools/lldb-perf/darwin/formatters/formatters.cpp
View File

@ -34,8 +34,9 @@ public:
m_dump_std_map_measurement = CreateTimeMeasurement([] (SBValue value) -> void {
lldb_perf::Xcode::FetchVariable (value,1,false);
}, "std-map", "time to dump an std::map");
m_dump_std_string_measurement = CreateTimeMeasurement([] (SBValue value) -> void {
lldb_perf::Xcode::FetchVariable (value,1,false);
// use this in manual mode
m_dump_std_string_measurement = CreateTimeMeasurement([] () -> void {
}, "std-string", "time to dump an std::string");
m_dump_nsstring_measurement = CreateTimeMeasurement([] (SBValue value) -> void {
@ -112,11 +113,32 @@ public:
m_dump_std_list_measurement(frame_zero.FindVariable("list", lldb::eDynamicCanRunTarget));
m_dump_std_map_measurement(frame_zero.FindVariable("map", lldb::eDynamicCanRunTarget));
m_dump_std_string_measurement(frame_zero.FindVariable("sstr0", lldb::eDynamicCanRunTarget));
m_dump_std_string_measurement(frame_zero.FindVariable("sstr1", lldb::eDynamicCanRunTarget));
m_dump_std_string_measurement(frame_zero.FindVariable("sstr2", lldb::eDynamicCanRunTarget));
m_dump_std_string_measurement(frame_zero.FindVariable("sstr3", lldb::eDynamicCanRunTarget));
m_dump_std_string_measurement(frame_zero.FindVariable("sstr4", lldb::eDynamicCanRunTarget));
auto sstr0 = frame_zero.FindVariable("sstr0", lldb::eDynamicCanRunTarget);
auto sstr1 = frame_zero.FindVariable("sstr1", lldb::eDynamicCanRunTarget);
auto sstr2 = frame_zero.FindVariable("sstr2", lldb::eDynamicCanRunTarget);
auto sstr3 = frame_zero.FindVariable("sstr3", lldb::eDynamicCanRunTarget);
auto sstr4 = frame_zero.FindVariable("sstr4", lldb::eDynamicCanRunTarget);
m_dump_std_string_measurement.start();
Xcode::FetchVariable(sstr0,0,false);
m_dump_std_string_measurement.stop();
m_dump_std_string_measurement.start();
Xcode::FetchVariable(sstr1,0,false);
m_dump_std_string_measurement.stop();
m_dump_std_string_measurement.start();
Xcode::FetchVariable(sstr2,0,false);
m_dump_std_string_measurement.stop();
m_dump_std_string_measurement.start();
Xcode::FetchVariable(sstr3,0,false);
m_dump_std_string_measurement.stop();
m_dump_std_string_measurement.start();
Xcode::FetchVariable(sstr4,0,false);
m_dump_std_string_measurement.stop();
}
virtual void
@ -202,7 +224,7 @@ private:
TimeMeasurement<std::function<void(SBValue)>> m_dump_std_vector_measurement;
TimeMeasurement<std::function<void(SBValue)>> m_dump_std_list_measurement;
TimeMeasurement<std::function<void(SBValue)>> m_dump_std_map_measurement;
TimeMeasurement<std::function<void(SBValue)>> m_dump_std_string_measurement;
TimeMeasurement<std::function<void()>> m_dump_std_string_measurement;
// Cocoa formatters
TimeMeasurement<std::function<void(SBValue)>> m_dump_nsstring_measurement;

26
lldb/tools/lldb-perf/lib/Measurement.h
View File

@ -23,12 +23,14 @@ public:
Measurement () {}
Measurement (Action act, const char* name = NULL, const char* descr = NULL) :
m_gauge (),
m_action (act),
m_metric (Metric<typename GaugeType::SizeType>(name,descr))
{}
template <typename GaugeType_Rhs, typename Action_Rhs>
Measurement (const Measurement<GaugeType_Rhs, Action_Rhs>& rhs) :
m_gauge(rhs.gauge()),
m_action(rhs.action()),
m_metric(rhs.metric())
{
@ -38,8 +40,7 @@ public:
void
operator () (Args... args)
{
GaugeType gauge;
m_metric.append (gauge.gauge(m_action,args...));
m_metric.append (m_gauge.gauge(m_action,args...));
}
virtual const Metric<typename GaugeType::SizeType>&
@ -48,6 +49,26 @@ public:
return m_metric;
}
void
start ()
{
m_gauge.start();
}
typename GaugeType::SizeType
stop ()
{
auto value = m_gauge.stop();
m_metric.append(value);
return value;
}
virtual const GaugeType&
gauge () const
{
return m_gauge;
}
virtual const Action&
action () const
{
@ -61,6 +82,7 @@ public:
}
protected:
GaugeType m_gauge;
Action m_action;
Metric<typename GaugeType::SizeType> m_metric;
};