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Added more math benchmarks.

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This commit is contained in:
Branimir Karadžić
2018-01-28 22:04:58 -08:00
parent 3c4b40744f
commit 4b676b011c
1 changed files with 45 additions and 48 deletions
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93
tests/math_bench.cpp
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@@ -9,63 +9,60 @@
#include <math.h>
typedef float (*MathFn)(float);
template<MathFn mfn>
float mathTest(const char* _name)
{
bx::WriterI* writer = bx::getStdOut();
int64_t elapsed = -bx::getHPCounter();
float result = 0.0f;
const float max = 1389.0f;
for (float xx = 0.0f; xx < max; xx += 0.1f)
{
result += mfn(xx);
}
elapsed += bx::getHPCounter();
bx::writePrintf(writer, "%-20s: %15f\n", _name, double(elapsed) );
return result;
}
void math_bench()
{
bx::WriterI* writer = bx::getStdOut();
bx::writePrintf(writer, "Math bench\n\n");
float result = 0.0f;
float max = 1389.0f;
mathTest< ::sqrtf >("::sqrtf");
mathTest<bx::sqrtRef >("bx::sqrtRef");
mathTest<bx::sqrtSimd>("bx::sqrtSimd");
mathTest<bx::sqrt >("bx::sqrt");
{
int64_t elapsed = -bx::getHPCounter();
bx::writePrintf(writer, "\n");
mathTest< ::sinf >("::sinf");
mathTest<bx::sin >("bx::sin");
result = 0.0f;
for (float xx = 0.0f; xx < max; xx += 0.1f)
{
result += ::sqrtf(xx);
}
bx::writePrintf(writer, "\n");
mathTest< ::asinf >("::asinf");
mathTest<bx::asin >("bx::asin");
elapsed += bx::getHPCounter();
bx::writePrintf(writer, " ::sqrtf: %15f, %f\n", double(elapsed), result);
}
bx::writePrintf(writer, "\n");
mathTest< ::cosf >("::cosf");
mathTest<bx::cos >("bx::cos");
{
int64_t elapsed = -bx::getHPCounter();
bx::writePrintf(writer, "\n");
mathTest< ::acosf >("::acosf");
mathTest<bx::acos >("bx::acos");
result = 0.0f;
for (float xx = 0.0f; xx < max; xx += 0.1f)
{
result += bx::sqrtRef(xx);
}
bx::writePrintf(writer, "\n");
mathTest< ::tanf >("::tanf");
mathTest<bx::tan >("bx::tan");
elapsed += bx::getHPCounter();
bx::writePrintf(writer, " bx::sqrtRef: %15f, %f\n", double(elapsed), result);
}
{
int64_t elapsed = -bx::getHPCounter();
result = 0.0f;
for (float xx = 0.0f; xx < max; xx += 0.1f)
{
result += bx::sqrtSimd(xx);
}
elapsed += bx::getHPCounter();
bx::writePrintf(writer, "bx::sqrtSimd: %15f, %f\n", double(elapsed), result);
}
{
int64_t elapsed = -bx::getHPCounter();
result = 0.0f;
for (float xx = 0.0f; xx < max; xx += 0.1f)
{
result += bx::sqrt(xx);
}
elapsed += bx::getHPCounter();
bx::writePrintf(writer, " bx::sqrt: %15f, %f\n", double(elapsed), result);
}
bx::writePrintf(writer, "\n");
mathTest< ::atanf >("::atanf");
mathTest<bx::atan >("bx::atan");
}