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/**
* @file llmetricperformancetester.h
* @brief LLMetricPerformanceTesterBasic and LLMetricPerformanceTesterWithSession classes definition
*
* $LicenseInfo:firstyear=2004&license=viewerlgpl$
* Second Life Viewer Source Code
* Copyright (C) 2010, Linden Research, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License only.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
* $/LicenseInfo$
*/
#ifndef LL_METRICPERFORMANCETESTER_H
#define LL_METRICPERFORMANCETESTER_H
char const* const DEFAULT_METRIC_NAME = "metric";
/**
* @class LLMetricPerformanceTesterBasic
* @brief Performance Metric Base Class
*/
class LL_COMMON_API LLMetricPerformanceTesterBasic
{
public:
/**
* @brief Creates a basic tester instance.
* @param[in] name - Unique string identifying this tester instance.
*/
LLMetricPerformanceTesterBasic(std::string name);
virtual ~LLMetricPerformanceTesterBasic();
/**
* @return Returns true if the instance has been added to the tester map.
* Need to be tested after creation of a tester instance so to know if the tester is correctly handled.
* A tester might not be added to the map if another tester with the same name already exists.
*/
bool isValid() const { return mValidInstance; }
/**
* @brief Write a set of test results to the log LLSD.
*/
void outputTestResults() ;
/**
* @brief Compare the test results.
* By default, compares the test results against the baseline one by one, item by item,
* in the increasing order of the LLSD record counter, starting from the first one.
*/
virtual void analyzePerformance(llofstream* os, LLSD* base, LLSD* current) ;
static void doAnalysisMetrics(std::string baseline, std::string target, std::string output) ;
/**
* @return Returns the number of the test metrics in this tester instance.
*/
auto getNumberOfMetrics() const { return mMetricStrings.size() ;}
/**
* @return Returns the metric name at index
* @param[in] index - Index on the list of metrics managed by this tester instance.
*/
std::string getMetricName(size_t index) const { return mMetricStrings[index] ;}
protected:
/**
* @return Returns the name of this tester instance.
*/
std::string getTesterName() const { return mName ;}
/**
* @brief Insert a new metric to be managed by this tester instance.
* @param[in] str - Unique string identifying the new metric.
*/
void addMetric(std::string str) ;
/**
* @brief Compare test results, provided in 2 flavors: compare integers and compare floats.
* @param[out] os - Formatted output string holding the compared values.
* @param[in] metric_string - Name of the metric.
* @param[in] v_base - Base value of the metric.
* @param[in] v_current - Current value of the metric.
*/
virtual void compareTestResults(llofstream* os, std::string metric_string, S32 v_base, S32 v_current) ;
virtual void compareTestResults(llofstream* os, std::string metric_string, F32 v_base, F32 v_current) ;
/**
* @brief Reset internal record count. Count starts with 1.
*/
void resetCurrentCount() { mCount = 1; }
/**
* @brief Increment internal record count.
*/
void incrementCurrentCount() { mCount++; }
/**
* @return Returns the label to be used for the current count. It's "TesterName"-"Count".
*/
std::string getCurrentLabelName() const { return llformat("%s-%d", mName.c_str(), mCount) ;}
/**
* @brief Write a test record to the LLSD. Implementers need to overload this method.
* @param[out] sd - The LLSD record to store metric data into.
*/
virtual void outputTestRecord(LLSD* sd) = 0 ;
private:
void preOutputTestResults(LLSD* sd) ;
void postOutputTestResults(LLSD* sd) ;
static LLSD analyzeMetricPerformanceLog(std::istream& is) ;
std::string mName ; // Name of this tester instance
S32 mCount ; // Current record count
bool mValidInstance; // true if the instance is managed by the map
std::vector< std::string > mMetricStrings ; // Metrics strings
// Static members managing the collection of testers
public:
// Map of all the tester instances in use
typedef std::map< std::string, LLMetricPerformanceTesterBasic* > name_tester_map_t;
static name_tester_map_t sTesterMap ;
/**
* @return Returns a pointer to the tester
* @param[in] name - Name of the tester instance queried.
*/
static LLMetricPerformanceTesterBasic* getTester(std::string name) ;
/**
* @return Delete the named tester from the list
* @param[in] name - Name of the tester instance to delete.
*/
static void deleteTester(std::string name);
/**
* @return Returns true if that metric *or* the default catch all metric has been requested to be logged
* @param[in] name - Name of the tester queried.
*/
static bool isMetricLogRequested(std::string name);
/**
* @return Returns true if there's a tester defined, false otherwise.
*/
static bool hasMetricPerformanceTesters() { return !sTesterMap.empty() ;}
/**
* @brief Delete all testers and reset the tester map
*/
static void cleanupClass() ;
private:
// Add a tester to the map. Returns false if adding fails.
static bool addTester(LLMetricPerformanceTesterBasic* tester) ;
};
/**
* @class LLMetricPerformanceTesterWithSession
* @brief Performance Metric Class with custom session
*/
class LL_COMMON_API LLMetricPerformanceTesterWithSession : public LLMetricPerformanceTesterBasic
{
public:
/**
* @param[in] name - Unique string identifying this tester instance.
*/
LLMetricPerformanceTesterWithSession(std::string name);
virtual ~LLMetricPerformanceTesterWithSession();
/**
* @brief Compare the test results.
* This will be loading the base and current sessions and compare them using the virtual
* abstract methods loadTestSession() and compareTestSessions()
*/
virtual void analyzePerformance(llofstream* os, LLSD* base, LLSD* current) ;
protected:
/**
* @class LLMetricPerformanceTesterWithSession::LLTestSession
* @brief Defines an interface for the two abstract virtual functions loadTestSession() and compareTestSessions()
*/
class LL_COMMON_API LLTestSession
{
public:
virtual ~LLTestSession() ;
};
/**
* @brief Convert an LLSD log into a test session.
* @param[in] log - The LLSD record
* @return Returns the record as a test session
*/
virtual LLMetricPerformanceTesterWithSession::LLTestSession* loadTestSession(LLSD* log) = 0;
/**
* @brief Compare the base session and the target session. Assumes base and current sessions have been loaded.
* @param[out] os - The comparison result as a standard stream
*/
virtual void compareTestSessions(llofstream* os) = 0;
LLTestSession* mBaseSessionp;
LLTestSession* mCurrentSessionp;
};
#endif
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