def paintGL(self):
"""Draw scene"""
## record render time statistics
if self._statistics:
## begin GPU time query
GL.glBeginQuery(GL.GL_TIME_ELAPSED, self._query)
## render scene
self.renderScene()
## finish GPU time query
GL.glEndQuery(GL.GL_TIME_ELAPSED)
## record render time statistics, need to stall the CPU a bit
ready = False
while not ready:
ready = GL.glGetQueryObjectiv(self._query, GL.GL_QUERY_RESULT_AVAILABLE)
self._gpuElapsed = GL.glGetQueryObjectuiv(self._query, GL.GL_QUERY_RESULT ) / 1000000.0
## delete query object
#GL.glDeleteQueries( self._query )
else:
## render scene
self.renderScene()
self._frameElapsed = self._elapsed_timer.restart()
def benchmark(num_test, query, preset=lambda: (), test_name=None):
qid = gl.glGenQueries(1)[0]
preset()
render_times = []
operation_times = []
for i in range(num_test):
s = time.time()
gl.glBeginQuery(gl.GL_TIME_ELAPSED, qid)
query()
gl.glEndQuery(gl.GL_TIME_ELAPSED)
e = time.time()
operation_times.append(e - s)
while not gl.glGetQueryObjectiv(qid, gl.GL_QUERY_RESULT_AVAILABLE):
pass
render_times.append(gl.glGetQueryObjectiv(qid, gl.GL_QUERY_RESULT))
glfw.swap_buffers(window)
gl.glDeleteQueries(1, [qid])
truncated_ratio = 0.95
render_times.sort()
render_times = render_times[int(len(render_times) * (
1 - truncated_ratio)):int(len(render_times) * truncated_ratio)]
render_ave = sum(t / num_test for t in render_times) / 1_000_000_000
operation_times.sort()
operation_times = operation_times[
int(len(operation_times) *
(1 - truncated_ratio)):int(len(operation_times) * truncated_ratio)]
op_ave = sum(t / num_test for t in operation_times)
if test_name is None:
test_name = query.__name__
print(f"TEST {test_name} RENDERING ELAPSE TIME: {render_ave}")
print(f"TEST {test_name} FULL ELAPSE TIME: {op_ave}")
print()
def test(setting, query, num_test, test_name):
setting()
elapse_times = []
for i in range(num_test):
gl.glBeginQuery(gl.GL_TIME_ELAPSED, qid)
query()
gl.glEndQuery(gl.GL_TIME_ELAPSED)
elapse_times.append(gl.glGetQueryObjectiv(qid, gl.GL_QUERY_RESULT))
glfw.swap_buffers(window)
ave = sum(t / num_test for t in elapse_times) / 1_000_000_000
print(f"TEST {test_name} RESULT: {ave}")
num_test = 10
is_test = True
times = {}
for _ in range(num_test):
removed = []
# pick
s = time.time()
for i in cherry_picked:
block = test1_blocks[i]
removed.append(block['idx'][:])
block.release_refill(0xff_ff_ff_ff)
e = time.time()
times.setdefault('refill', []).append(e - s)
# push data
gl.glBeginQuery(gl.GL_TIME_ELAPSED, qid)
gl.glBindBuffer(gl.GL_ELEMENT_ARRAY_BUFFER, test3_ibo)
gl.glBufferData(gl.GL_ELEMENT_ARRAY_BUFFER, test1_idx.active_bytesize,
test1_idx.array, gl.GL_DYNAMIC_DRAW)
gl.glEndQuery(gl.GL_TIME_ELAPSED)
times.setdefault('push_packed', []).append(
gl.glGetQueryObjectiv(qid, gl.GL_QUERY_RESULT) / 1_000_000_000)
# render
gl.glBeginQuery(gl.GL_TIME_ELAPSED, qid)
gl.glDrawElements(gl.GL_POINTS, test1_idx.active_size + 1,
gl.GL_UNSIGNED_INT, ctypes.c_void_p(0))
gl.glEndQuery(gl.GL_TIME_ELAPSED)
times.setdefault('render_packed', []).append(
gl.glGetQueryObjectiv(qid, gl.GL_QUERY_RESULT) / 1_000_000_000)