private void btnUnsafeVSSafe_Click(object sender, EventArgs e)
{
int count = 1000000;
// 测试vec3类型
{
var vec3Array = new UnmanagedArray <vec3>(count);
long startTick = DateTime.Now.Ticks;
for (int i = 0; i < count; i++)
{
vec3Array[i] = new vec3(i * 3 + 0, i * 3 + 1, i * 3 + 2);
}
for (int i = 0; i < count; i++)
{
var item = vec3Array[i];
var old = new vec3(i * 3 + 0, i * 3 + 1, i * 3 + 2);
if (item.x != old.x || item.y != old.y || item.z != old.z)
{
throw new Exception();
}
}
long interval = DateTime.Now.Ticks - startTick;
unsafe
{
startTick = DateTime.Now.Ticks;
vec3 *header = (vec3 *)vec3Array.FirstElement();
vec3 *last = (vec3 *)vec3Array.LastElement();
vec3 *tailAddress = (vec3 *)vec3Array.TailAddress();
int i = 0;
for (vec3 *ptr = header; ptr <= last /*or: ptr < tailAddress*/; ptr++)
{
*ptr = new vec3(i * 3 + 0, i * 3 + 1, i * 3 + 2);
i++;
}
i = 0;
for (vec3 *ptr = header; ptr <= last /*or: ptr < tailAddress*/; ptr++, i++)
{
var item = *ptr;
var old = new vec3(i * 3 + 0, i * 3 + 1, i * 3 + 2);
if (item.x != old.x || item.y != old.y || item.z != old.z)
{
throw new Exception();
}
}
}
long interval2 = DateTime.Now.Ticks - startTick;
Console.WriteLine();
MessageBox.Show(string.Format("Ticks: safe: {0} vs unsafe: {1}", interval, interval2), "result");
}
}
public static void TypicalScene()
{
const int count = 1000000;
long startTick = 0;
long interval, interval2;
// 测试float类型
{
var floatArray = new UnmanagedArray<float>(count);
startTick = DateTime.Now.Ticks;
for (int i = 0; i < count; i++)
{
floatArray[i] = i;
}
for (int i = 0; i < count; i++)
{
var item = floatArray[i];
if (item != i)
{ throw new Exception(); }
}
interval = DateTime.Now.Ticks - startTick;
unsafe
{
startTick = DateTime.Now.Ticks;
float* header = (float*)floatArray.FirstElement();
float* last = (float*)floatArray.LastElement();
float* tailAddress = (float*)floatArray.TailAddress();
int value = 0;
for (float* ptr = header; ptr <= last/*or: ptr < tailAddress*/; ptr++)
{
*ptr = value++;
}
int i = 0;
for (float* ptr = header; ptr <= last/*or: ptr < tailAddress*/; ptr++, i++)
{
var item = *ptr;
if (item != i)
{ throw new Exception(); }
}
interval2 = DateTime.Now.Ticks - startTick;
}
Console.WriteLine("Ticks: safe: {0} vs unsafe: {1}", interval, interval2);
}
// 测试decimal类型
{
var decimalArray = new UnmanagedArray<decimal>(count);
startTick = DateTime.Now.Ticks;
for (int i = 0; i < count; i++)
{
decimalArray[i] = i;
}
for (int i = 0; i < count; i++)
{
var item = decimalArray[i];
if (item != i)
{ throw new Exception(); }
}
interval = DateTime.Now.Ticks - startTick;
unsafe
{
startTick = DateTime.Now.Ticks;
decimal* header = (decimal*)decimalArray.FirstElement();
decimal* last = (decimal*)decimalArray.LastElement();
decimal* tailAddress = (decimal*)decimalArray.TailAddress();
int value = 0;
for (decimal* ptr = header; ptr <= last/*or: ptr < tailAddress*/; ptr++)
{
*ptr = value++;
}
int i = 0;
for (decimal* ptr = header; ptr <= last/*or: ptr < tailAddress*/; ptr++, i++)
{
var item = *ptr;
if (item != i)
{ throw new Exception(); }
}
interval2 = DateTime.Now.Ticks - startTick;
}
Console.WriteLine("Ticks: safe: {0} vs unsafe: {1}", interval, interval2);
}
// 测试int类型
{
var intArray = new UnmanagedArray<int>(count);
startTick = DateTime.Now.Ticks;
for (int i = 0; i < count; i++)
{
intArray[i] = i;
}
for (int i = 0; i < count; i++)
{
var item = intArray[i];
if (item != i)
{ throw new Exception(); }
}
interval = DateTime.Now.Ticks - startTick;
unsafe
{
startTick = DateTime.Now.Ticks;
int* header = (int*)intArray.FirstElement();
int* last = (int*)intArray.LastElement();
int* tailAddress = (int*)intArray.TailAddress();
int value = 0;
for (int* ptr = header; ptr <= last/*or: ptr < tailAddress*/; ptr++)
{
*ptr = value++;
}
int i = 0;
for (int* ptr = header; ptr <= last/*or: ptr < tailAddress*/; ptr++, i++)
{
var item = *ptr;
if (item != i)
{ throw new Exception(); }
}
interval2 = DateTime.Now.Ticks - startTick;
}
Console.WriteLine("Ticks: safe: {0} vs unsafe: {1}", interval, interval2);
}
// 测试bool类型
{
var boolArray = new UnmanagedArray<bool>(count);
startTick = DateTime.Now.Ticks;
for (int i = 0; i < count; i++)
{
boolArray[i] = i % 2 == 0;
}
for (int i = 0; i < count; i++)
{
var item = boolArray[i];
if (item != (i % 2 == 0))
{ throw new Exception(); }
}
interval = DateTime.Now.Ticks - startTick;
unsafe
{
startTick = DateTime.Now.Ticks;
bool* header = (bool*)boolArray.FirstElement();
bool* last = (bool*)boolArray.LastElement();
bool* tailAddress = (bool*)boolArray.TailAddress();
int value = 0;
for (bool* ptr = header; ptr <= last/*or: ptr < tailAddress*/; ptr++)
{
*ptr = (value % 2 == 0);
value++;
}
int i = 0;
for (bool* ptr = header; ptr <= last/*or: ptr < tailAddress*/; ptr++, i++)
{
var item = *ptr;
if (item != (i % 2 == 0))
{ throw new Exception(); }
}
interval2 = DateTime.Now.Ticks - startTick;
}
Console.WriteLine("Ticks: safe: {0} vs unsafe: {1}", interval, interval2);
}
// 测试vec3类型
{
var vec3Array = new UnmanagedArray<vec3>(count);
startTick = DateTime.Now.Ticks;
for (int i = 0; i < count; i++)
{
vec3Array[i] = new vec3(i * 3 + 0, i * 3 + 1, i * 3 + 2);
}
for (int i = 0; i < count; i++)
{
var item = vec3Array[i];
var old = new vec3(i * 3 + 0, i * 3 + 1, i * 3 + 2);
if (item.x != old.x || item.y != old.y || item.z != old.z)
{ throw new Exception(); }
}
interval = DateTime.Now.Ticks - startTick;
unsafe
{
startTick = DateTime.Now.Ticks;
vec3* header = (vec3*)vec3Array.FirstElement();
vec3* last = (vec3*)vec3Array.LastElement();
vec3* tailAddress = (vec3*)vec3Array.TailAddress();
int i = 0;
for (vec3* ptr = header; ptr <= last/*or: ptr < tailAddress*/; ptr++)
{
*ptr = new vec3(i * 3 + 0, i * 3 + 1, i * 3 + 2);
i++;
}
i = 0;
for (vec3* ptr = header; ptr <= last/*or: ptr < tailAddress*/; ptr++, i++)
{
var item = *ptr;
var old = new vec3(i * 3 + 0, i * 3 + 1, i * 3 + 2);
if (item.x != old.x || item.y != old.y || item.z != old.z)
{ throw new Exception(); }
}
interval2 = DateTime.Now.Ticks - startTick;
}
Console.WriteLine("Ticks: safe: {0} vs unsafe: {1}", interval, interval2);
}
// 测试mat4类型
{
var vec3Array = new UnmanagedArray<mat4>(count);
startTick = DateTime.Now.Ticks;
for (int i = 0; i < count; i++)
{
vec3Array[i] = new mat4(new vec4(i, i + 1, i + 2, i + 3), new vec4(i, i + 1, i + 2, i + 3), new vec4(i, i + 1, i + 2, i + 3), new vec4(i, i + 1, i + 2, i + 3));
}
for (int i = 0; i < count; i++)
{
var item = vec3Array[i];
var old = new mat4(new vec4(i, i + 1, i + 2, i + 3), new vec4(i, i + 1, i + 2, i + 3), new vec4(i, i + 1, i + 2, i + 3), new vec4(i, i + 1, i + 2, i + 3));
for (int col = 0; col < 4; col++)
{
for (int row = 0; row < 4; row++)
{
if (item[col][row] != old[col][row])
{ throw new Exception(); }
}
}
}
interval = DateTime.Now.Ticks - startTick;
unsafe
{
startTick = DateTime.Now.Ticks;
mat4* header = (mat4*)vec3Array.FirstElement();
mat4* last = (mat4*)vec3Array.LastElement();
mat4* tailAddress = (mat4*)vec3Array.TailAddress();
int i = 0;
for (mat4* ptr = header; ptr <= last/*or: ptr < tailAddress*/; ptr++)
{
*ptr = new mat4(new vec4(i, i + 1, i + 2, i + 3), new vec4(i, i + 1, i + 2, i + 3), new vec4(i, i + 1, i + 2, i + 3), new vec4(i, i + 1, i + 2, i + 3));
i++;
}
i = 0;
for (mat4* ptr = header; ptr <= last/*or: ptr < tailAddress*/; ptr++, i++)
{
var item = *ptr;
var old = new mat4(new vec4(i, i + 1, i + 2, i + 3), new vec4(i, i + 1, i + 2, i + 3), new vec4(i, i + 1, i + 2, i + 3), new vec4(i, i + 1, i + 2, i + 3));
for (int col = 0; col < 4; col++)
{
for (int row = 0; row < 4; row++)
{
if (item[col][row] != old[col][row])
{ throw new Exception(); }
}
}
}
interval2 = DateTime.Now.Ticks - startTick;
}
Console.WriteLine("Ticks: safe: {0} vs unsafe: {1}", interval, interval2);
}
// 立即释放所有非托管数组占用的内存，任何之前创建的UnmanagedBase数组都不再可用了。
UnmanagedArray<int>.FreeAll();
}
public static void TypicalScene()
{
const int count = 1000000;
long startTick = 0;
long interval, interval2;
// 测试float类型
{
var floatArray = new UnmanagedArray <float>(count);
startTick = DateTime.Now.Ticks;
for (int i = 0; i < count; i++)
{
floatArray[i] = i;
}
for (int i = 0; i < count; i++)
{
var item = floatArray[i];
if (item != i)
{
throw new Exception();
}
}
interval = DateTime.Now.Ticks - startTick;
unsafe
{
startTick = DateTime.Now.Ticks;
float *header = (float *)floatArray.FirstElement();
float *last = (float *)floatArray.LastElement();
float *tailAddress = (float *)floatArray.TailAddress();
int value = 0;
for (float *ptr = header; ptr <= last /*or: ptr < tailAddress*/; ptr++)
{
*ptr = value++;
}
int i = 0;
for (float *ptr = header; ptr <= last /*or: ptr < tailAddress*/; ptr++, i++)
{
var item = *ptr;
if (item != i)
{
throw new Exception();
}
}
interval2 = DateTime.Now.Ticks - startTick;
}
Console.WriteLine("Ticks: safe: {0} vs unsafe: {1}", interval, interval2);
}
// 测试decimal类型
{
var decimalArray = new UnmanagedArray <decimal>(count);
startTick = DateTime.Now.Ticks;
for (int i = 0; i < count; i++)
{
decimalArray[i] = i;
}
for (int i = 0; i < count; i++)
{
var item = decimalArray[i];
if (item != i)
{
throw new Exception();
}
}
interval = DateTime.Now.Ticks - startTick;
unsafe
{
startTick = DateTime.Now.Ticks;
decimal *header = (decimal *)decimalArray.FirstElement();
decimal *last = (decimal *)decimalArray.LastElement();
decimal *tailAddress = (decimal *)decimalArray.TailAddress();
int value = 0;
for (decimal *ptr = header; ptr <= last /*or: ptr < tailAddress*/; ptr++)
{
*ptr = value++;
}
int i = 0;
for (decimal *ptr = header; ptr <= last /*or: ptr < tailAddress*/; ptr++, i++)
{
var item = *ptr;
if (item != i)
{
throw new Exception();
}
}
interval2 = DateTime.Now.Ticks - startTick;
}
Console.WriteLine("Ticks: safe: {0} vs unsafe: {1}", interval, interval2);
}
// 测试int类型
{
var intArray = new UnmanagedArray <int>(count);
startTick = DateTime.Now.Ticks;
for (int i = 0; i < count; i++)
{
intArray[i] = i;
}
for (int i = 0; i < count; i++)
{
var item = intArray[i];
if (item != i)
{
throw new Exception();
}
}
interval = DateTime.Now.Ticks - startTick;
unsafe
{
startTick = DateTime.Now.Ticks;
int *header = (int *)intArray.FirstElement();
int *last = (int *)intArray.LastElement();
int *tailAddress = (int *)intArray.TailAddress();
int value = 0;
for (int *ptr = header; ptr <= last /*or: ptr < tailAddress*/; ptr++)
{
*ptr = value++;
}
int i = 0;
for (int *ptr = header; ptr <= last /*or: ptr < tailAddress*/; ptr++, i++)
{
var item = *ptr;
if (item != i)
{
throw new Exception();
}
}
interval2 = DateTime.Now.Ticks - startTick;
}
Console.WriteLine("Ticks: safe: {0} vs unsafe: {1}", interval, interval2);
}
// 测试bool类型
{
var boolArray = new UnmanagedArray <bool>(count);
startTick = DateTime.Now.Ticks;
for (int i = 0; i < count; i++)
{
boolArray[i] = i % 2 == 0;
}
for (int i = 0; i < count; i++)
{
var item = boolArray[i];
if (item != (i % 2 == 0))
{
throw new Exception();
}
}
interval = DateTime.Now.Ticks - startTick;
unsafe
{
startTick = DateTime.Now.Ticks;
bool *header = (bool *)boolArray.FirstElement();
bool *last = (bool *)boolArray.LastElement();
bool *tailAddress = (bool *)boolArray.TailAddress();
int value = 0;
for (bool *ptr = header; ptr <= last /*or: ptr < tailAddress*/; ptr++)
{
*ptr = (value % 2 == 0);
value++;
}
int i = 0;
for (bool *ptr = header; ptr <= last /*or: ptr < tailAddress*/; ptr++, i++)
{
var item = *ptr;
if (item != (i % 2 == 0))
{
throw new Exception();
}
}
interval2 = DateTime.Now.Ticks - startTick;
}
Console.WriteLine("Ticks: safe: {0} vs unsafe: {1}", interval, interval2);
}
// 测试vec3类型
{
var vec3Array = new UnmanagedArray <vec3>(count);
startTick = DateTime.Now.Ticks;
for (int i = 0; i < count; i++)
{
vec3Array[i] = new vec3(i * 3 + 0, i * 3 + 1, i * 3 + 2);
}
for (int i = 0; i < count; i++)
{
var item = vec3Array[i];
var old = new vec3(i * 3 + 0, i * 3 + 1, i * 3 + 2);
if (item.x != old.x || item.y != old.y || item.z != old.z)
{
throw new Exception();
}
}
interval = DateTime.Now.Ticks - startTick;
unsafe
{
startTick = DateTime.Now.Ticks;
vec3 *header = (vec3 *)vec3Array.FirstElement();
vec3 *last = (vec3 *)vec3Array.LastElement();
vec3 *tailAddress = (vec3 *)vec3Array.TailAddress();
int i = 0;
for (vec3 *ptr = header; ptr <= last /*or: ptr < tailAddress*/; ptr++)
{
*ptr = new vec3(i * 3 + 0, i * 3 + 1, i * 3 + 2);
i++;
}
i = 0;
for (vec3 *ptr = header; ptr <= last /*or: ptr < tailAddress*/; ptr++, i++)
{
var item = *ptr;
var old = new vec3(i * 3 + 0, i * 3 + 1, i * 3 + 2);
if (item.x != old.x || item.y != old.y || item.z != old.z)
{
throw new Exception();
}
}
interval2 = DateTime.Now.Ticks - startTick;
}
Console.WriteLine("Ticks: safe: {0} vs unsafe: {1}", interval, interval2);
}
// 测试mat4类型
{
var vec3Array = new UnmanagedArray <mat4>(count);
startTick = DateTime.Now.Ticks;
for (int i = 0; i < count; i++)
{
vec3Array[i] = new mat4(new vec4(i, i + 1, i + 2, i + 3), new vec4(i, i + 1, i + 2, i + 3), new vec4(i, i + 1, i + 2, i + 3), new vec4(i, i + 1, i + 2, i + 3));
}
for (int i = 0; i < count; i++)
{
var item = vec3Array[i];
var old = new mat4(new vec4(i, i + 1, i + 2, i + 3), new vec4(i, i + 1, i + 2, i + 3), new vec4(i, i + 1, i + 2, i + 3), new vec4(i, i + 1, i + 2, i + 3));
for (int col = 0; col < 4; col++)
{
for (int row = 0; row < 4; row++)
{
if (item[col][row] != old[col][row])
{
throw new Exception();
}
}
}
}
interval = DateTime.Now.Ticks - startTick;
unsafe
{
startTick = DateTime.Now.Ticks;
mat4 *header = (mat4 *)vec3Array.FirstElement();
mat4 *last = (mat4 *)vec3Array.LastElement();
mat4 *tailAddress = (mat4 *)vec3Array.TailAddress();
int i = 0;
for (mat4 *ptr = header; ptr <= last /*or: ptr < tailAddress*/; ptr++)
{
*ptr = new mat4(new vec4(i, i + 1, i + 2, i + 3), new vec4(i, i + 1, i + 2, i + 3), new vec4(i, i + 1, i + 2, i + 3), new vec4(i, i + 1, i + 2, i + 3));
i++;
}
i = 0;
for (mat4 *ptr = header; ptr <= last /*or: ptr < tailAddress*/; ptr++, i++)
{
var item = *ptr;
var old = new mat4(new vec4(i, i + 1, i + 2, i + 3), new vec4(i, i + 1, i + 2, i + 3), new vec4(i, i + 1, i + 2, i + 3), new vec4(i, i + 1, i + 2, i + 3));
for (int col = 0; col < 4; col++)
{
for (int row = 0; row < 4; row++)
{
if (item[col][row] != old[col][row])
{
throw new Exception();
}
}
}
}
interval2 = DateTime.Now.Ticks - startTick;
}
Console.WriteLine("Ticks: safe: {0} vs unsafe: {1}", interval, interval2);
}
// 立即释放所有非托管数组占用的内存，任何之前创建的UnmanagedBase数组都不再可用了。
UnmanagedArray <int> .FreeAll();
}
