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progs/perf: add another VBO test for Create/Draw/Destroy pattern

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Report both MB/sec and draw/sec.
This commit is contained in:
Brian Paul 2009-09-22 09:53:35 -06:00
parent 7e5004b298
commit bae2d58827
1 changed files with 37 additions and 2 deletions
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39
progs/perf/vbo.c
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@ -41,7 +41,7 @@ static GLuint VBO;
static GLsizei VBOSize = 0;
static GLsizei SubSize = 0;
static GLubyte *VBOData = NULL;
static GLubyte *VBOData = NULL; /* array[DATA_SIZE] */
static const GLboolean DrawPoint = GL_TRUE;
static const GLboolean BufferSubDataInHalves = GL_TRUE;
@ -107,6 +107,7 @@ UploadSubVBO(unsigned count)
glFinish();
}
/* Do multiple small SubData uploads, then call DrawArrays. This may be a
* fairer comparison to back-to-back BufferData calls:
*/
@ -132,6 +133,31 @@ BatchUploadSubVBO(unsigned count)
}
/**
* Test the sequence:
* create/load VBO
* draw
* destroy VBO
*/
static void
CreateDrawDestroyVBO(unsigned count)
{
unsigned i;
for (i = 0; i < count; i++) {
GLuint vbo;
/* create/load */
glGenBuffersARB(1, &vbo);
glBufferDataARB(GL_ARRAY_BUFFER, VBOSize, VBOData, GL_STREAM_DRAW_ARB);
/* draw */
glVertexPointer(2, GL_FLOAT, sizeof(Vertex0), (void *) 0);
glDrawArrays(GL_POINTS, 0, 1);
/* destroy */
glDeleteBuffersARB(1, &vbo);
}
glFinish();
}
static const GLsizei Sizes[] = {
64,
1024,
@ -164,7 +190,6 @@ PerfDraw(void)
sizeof(Vertex0));
}
/* glBufferDataARB()
*/
for (sz = 0; Sizes[sz]; sz++) {
@ -206,5 +231,15 @@ PerfDraw(void)
SubSize, VBOSize, mbPerSec);
}
/* Create/Draw/Destroy
*/
for (sz = 0; Sizes[sz]; sz++) {
SubSize = VBOSize = Sizes[sz];
rate = PerfMeasureRate(CreateDrawDestroyVBO);
mbPerSec = rate * VBOSize / (1024.0 * 1024.0);
perf_printf(" VBO Create/Draw/Destroy(size = %d): %.1f MB/sec, %.1f draws/sec\n",
VBOSize, mbPerSec, rate);
}
exit(0);
}