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Print time for ErrorCounter::ComputeErrorRate in milliseconds

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Optimize also the code, replace tprintf by C++ stream
and call clock() only when needed.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
This commit is contained in:
Stefan Weil 2024-08-23 11:47:56 +02:00
parent bd7b3571cc
commit 7ef8e3c7ee
1 changed files with 8 additions and 4 deletions
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12
src/training/common/errorcounter.cpp
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@ -23,6 +23,7 @@
#include "sampleiterator.h"
#include "shapeclassifier.h"
#include "shapetable.h"
#include "tesserrstream.h"
#include "trainingsample.h"
#include "trainingsampleset.h"
#include "unicity_table.h"
@ -50,7 +51,10 @@ double ErrorCounter::ComputeErrorRate(ShapeClassifier *classifier, int report_le
ErrorCounter counter(classifier->GetUnicharset(), fontsize);
std::vector<UnicharRating> results;
clock_t start = clock();
clock_t total_time = 0;
if (report_level > 1) {
total_time = clock();
}
unsigned total_samples = 0;
double unscaled_error = 0.0;
// Set a number of samples on which to run the classify debug mode.
@ -85,7 +89,6 @@ double ErrorCounter::ComputeErrorRate(ShapeClassifier *classifier, int report_le
}
++total_samples;
}
const double total_time = 1.0 * (clock() - start) / CLOCKS_PER_SEC;
// Create the appropriate error report.
unscaled_error = counter.ReportErrors(report_level, boosting_mode, fontinfo_table, *it,
unichar_error, fonts_report);
@ -94,8 +97,9 @@ double ErrorCounter::ComputeErrorRate(ShapeClassifier *classifier, int report_le
}
if (report_level > 1 && total_samples > 0) {
// It is useful to know the time in microseconds/char.
tprintf("Errors computed in %.2fs at %.1f μs/char\n", total_time,
1000000.0 * total_time / total_samples);
total_time = 1000 * (clock() - total_time) / CLOCKS_PER_SEC;
tesserr << "Errors computed in " << total_time << " ms at "
<< 1000 * total_time / total_samples << " μs/char\n";
}
return unscaled_error;
}