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// BEGIN_COPYRIGHT -*- glean -*-
//
// Copyright (C) 2000 Allen Akin All Rights Reserved.
//
// Permission is hereby granted, free of charge, to any person
// obtaining a copy of this software and associated documentation
// files (the "Software"), to deal in the Software without
// restriction, including without limitation the rights to use,
// copy, modify, merge, publish, distribute, sublicense, and/or
// sell copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following
// conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the
// Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
// KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
// WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL ALLEN AKIN BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
// AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
// OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
//
// END_COPYRIGHT
// tbasicperf.cpp: implementation of example class for basic
// performance tests
// To customize this for benchmarking a particular function,
// create a new performance test object of type GLEAN::Perf,
// overriding the preop(), op(), and postop() methods as needed.
// (For OpenGL timing tests preop() and postop() will both call
// glFinish(), but other pre- and post-ops may be used for
// timing things other than OpenGL.) Then invoke the object's
// calibrate() and time() methods as shown in runOne().
#include "tbasicperf.h"
#include "timer.h"
#include <algorithm>
namespace {
class MyPerf : public GLEAN::Timer {
public:
int msec;
void preop() { glFinish(); }
void op() {
#ifdef __WIN__
Sleep(msec); /* milliseconds */
#else
usleep(msec*1000); /* microseconds */
#endif
}
void postop() { glFinish(); }
MyPerf() { msec = 100; }
};
// Complex results helper functions
void
diffHeader(bool& same, const string& name,
GLEAN::DrawingSurfaceConfig* config, GLEAN::Environment* env) {
if (same) {
same = false;
env->log << name << ": DIFF "
<< config->conciseDescription() << '\n';
}
} // diffHeader
}
namespace GLEAN {
///////////////////////////////////////////////////////////////////////////////
// runOne: Run a single test case
///////////////////////////////////////////////////////////////////////////////
void
BasicPerfTest::runOne(BasicPerfResult& r, Window &w) {
MyPerf perf;
perf.calibrate();
vector<float> m;
for (int i = 0; i < 5; i++) {
env->quiesce();
double t = perf.time();
w.swap(); // So user can see something
m.push_back(t);
}
sort(m.begin(), m.end());
r.timeAvg = (m[1] + m[2] + m[3]) / 3.0;
r.timeLow = m[1];
r.timeHigh = m[3];
r.pass = true;
} // BasicPerfTest::runOne
///////////////////////////////////////////////////////////////////////////////
// logOne: Log a single test case
///////////////////////////////////////////////////////////////////////////////
void
BasicPerfTest::logOne(BasicPerfResult& r) {
logPassFail(r);
logConcise(r);
logStats(r);
} // BasicPerfTest::logOne
///////////////////////////////////////////////////////////////////////////////
// compareOne: Compare results for a single test case
///////////////////////////////////////////////////////////////////////////////
void
BasicPerfTest::compareOne(BasicPerfResult& oldR, BasicPerfResult& newR) {
bool same = true;
const char *title = "100mS sleep";
if (newR.timeLow < oldR.timeLow) {
double percent = (100.0
* (oldR.timeLow - newR.timeLow)
/ newR.timeLow + 0.5);
if (percent >= 5.0) {
diffHeader(same, name, oldR.config, env);
env->log << '\t'
<< env->options.db1Name
<< " may be "
<< percent
<< "% faster on "
<< title
<< '\n';
}
}
if (newR.timeHigh > oldR.timeHigh) {
double percent = (100.0
* (newR.timeHigh - oldR.timeHigh)
/ oldR.timeHigh + 0.5);
if (percent >= 5.0) {
diffHeader(same, name, oldR.config, env);
env->log << '\t'
<< env->options.db2Name
<< " may be "
<< percent
<< "% faster on "
<< title
<< '\n';
}
}
if (same && env->options.verbosity) {
env->log << name
<< ": SAME "
<< newR.config->conciseDescription()
<< "\n\t"
<< env->options.db2Name
<< " test time falls within the"
<< " valid measurement range of\n\t"
<< env->options.db1Name
<< " test time.\n";
}
if (env->options.verbosity) {
env->log << env->options.db1Name << ':';
logStats(oldR);
env->log << env->options.db2Name << ':';
logStats(newR);
}
} // BasicPerfTest::compareOne
void
BasicPerfTest::logStats(BasicPerfResult& r) {
env->log << "\tAverage = "
<< r.timeAvg
<< "\tRange = ["
<< r.timeLow
<< ", "
<< r.timeHigh
<< "]\n";
}
///////////////////////////////////////////////////////////////////////////////
// The test object itself:
///////////////////////////////////////////////////////////////////////////////
BasicPerfTest basicPerfTest("basicPerf", "window",
"This trivial test simply verifies the internal support for basic\n"
"performance tests. It is run on every OpenGL-capable drawing surface\n"
"configuration that supports creation of a window. If everything is\n"
"working correctly, each result should be close to 0.1 second.\n");
} // namespace GLEAN
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