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#include <library/cpp/testing/benchmark/bench.h>
#include <util/string/strip.h>
#include <util/generic/xrange.h>
static const TString SHORT_STRING = " foo ";
static const TString LONG_STRING = TString(200, ' ') + TString(200, 'f') + TString(200, ' ');
Y_CPU_BENCHMARK(StripInPlaceShortNoChange, iface) {
TString s = "foo";
for (const auto i : xrange(iface.Iterations())) {
Y_UNUSED(i);
StripInPlace(s);
Y_DO_NOT_OPTIMIZE_AWAY(s);
}
}
Y_CPU_BENCHMARK(StripInPlaceLongNoChange, iface) {
TString s = TString{200, 'f'};
for (const auto i : xrange(iface.Iterations())) {
Y_UNUSED(i);
StripInPlace(s);
Y_DO_NOT_OPTIMIZE_AWAY(s);
}
}
Y_CPU_BENCHMARK(StripInPlaceShort, iface) {
TString s;
for (const auto i : xrange(iface.Iterations())) {
Y_UNUSED(i);
s.assign(SHORT_STRING.begin(), SHORT_STRING.end());
StripInPlace(s);
Y_DO_NOT_OPTIMIZE_AWAY(s);
}
}
Y_CPU_BENCHMARK(StripInPlaceLong, iface) {
TString s;
for (const auto i : xrange(iface.Iterations())) {
Y_UNUSED(i);
s.assign(LONG_STRING.begin(), LONG_STRING.end());
StripInPlace(s);
Y_DO_NOT_OPTIMIZE_AWAY(s);
}
}
Y_CPU_BENCHMARK(StripInPlaceShortMut, iface) {
TString s = SHORT_STRING;
for (const auto i : xrange(iface.Iterations())) {
Y_UNUSED(i);
s.append(' ');
StripInPlace(s);
Y_DO_NOT_OPTIMIZE_AWAY(s);
}
}
Y_CPU_BENCHMARK(StripInPlaceLongMut, iface) {
TString s = LONG_STRING;
for (const auto i : xrange(iface.Iterations())) {
Y_UNUSED(i);
s.append(100, ' ');
StripInPlace(s);
Y_DO_NOT_OPTIMIZE_AWAY(s);
}
}
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