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Added tests for chunk performance.

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This commit is contained in:
David Williams
2015-03-25 16:40:05 +01:00
parent 6516c00e62
commit 931c6cd3ec
2 changed files with 72 additions and 1 deletions
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65
tests/testvolume.cpp
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@ -30,6 +30,8 @@ freely, subject to the following restrictions:
#include <QtGlobal>
#include <QtTest>
#include <random>
using namespace PolyVox;
// This is used to compute a value from a list of integers. We use it to
@ -249,7 +251,7 @@ TestVolume::TestVolume()
//Create the volumes
m_pRawVolume = new RawVolume<int32_t>(m_regVolume);
m_pPagedVolume = new PagedVolume<int32_t>(m_pFilePager, 1 * 1024 * 1024, 32);
m_pPagedVolume = new PagedVolume<int32_t>(m_pFilePager, 1 * 1024 * 1024, m_uChunkSideLength);
//Fill the volume with some data
for (int z = m_regVolume.getLowerZ(); z <= m_regVolume.getUpperZ(); z++)
@ -264,10 +266,26 @@ TestVolume::TestVolume()
}
}
}
// Note - We are reusing the FilePager for testing... watch out for conflicts with the main volume.
m_pPagedVolumeChunk = new PagedVolume<int32_t>::Chunk(Vector3DInt32(10000, 10000, 10000), m_uChunkSideLength, m_pFilePager);
int32_t i = 0;
for (uint16_t z = 0; z < m_uChunkSideLength; z++)
{
for (uint16_t y = 0; y < m_uChunkSideLength; y++)
{
for (uint16_t x = 0; x < m_uChunkSideLength; x++)
{
m_pPagedVolumeChunk->setVoxel(x, y, z, ++i);
}
}
}
}
TestVolume::~TestVolume()
{
delete m_pPagedVolumeChunk;
delete m_pRawVolume;
delete m_pPagedVolume;
@ -450,4 +468,49 @@ void TestVolume::testPagedVolumeSamplersWithExternalBackwards()
QCOMPARE(result, static_cast<int32_t>(-993539594));
}
void TestVolume::testPagedVolumeChunkLocalAccess()
{
std::mt19937 rng;
int32_t result = 0;
uint16_t x = rng() % m_uChunkSideLength;
uint16_t y = rng() % m_uChunkSideLength;
uint16_t z = rng() % m_uChunkSideLength;
QBENCHMARK
{
for (uint32_t ct = 0; ct < 1000000; ct++)
{
uint16_t xOffset = rng() % 3;
uint16_t yOffset = rng() % 3;
uint16_t zOffset = rng() % 3;
x += xOffset;
y += yOffset;
z += zOffset;
x %= m_uChunkSideLength;
y %= m_uChunkSideLength;
z %= m_uChunkSideLength;
int32_t voxel = m_pPagedVolumeChunk->getVoxel(x, y, z);
result = cantorTupleFunction(result, voxel);
}
}
QCOMPARE(result, static_cast<int32_t>(145244783));
}
void TestVolume::testPagedVolumeChunkRandomAccess()
{
std::mt19937 rng;
int32_t result = 0;
QBENCHMARK
{
for (uint32_t ct = 0; ct < 1000000; ct++)
{
uint16_t x = rng() % m_uChunkSideLength;
uint16_t y = rng() % m_uChunkSideLength;
uint16_t z = rng() % m_uChunkSideLength;
int32_t voxel = m_pPagedVolumeChunk->getVoxel(x, y, z);
result = cantorTupleFunction(result, voxel);
}
}
QCOMPARE(result, static_cast<int32_t>(408757678));
}
QTEST_MAIN(TestVolume)