Hi,
My application is showing cyclic framerate drop for no reason( rendering the same point of view, simple static scene).
I decided to use nsight to see what’s happening but unfortunately, when nsight graphic debugger is attached, the framerate becomes stable.
Here are some (tiny) screenshots of the frame times over time.
My framerate over time when running in standalone, mean value is 16 fps
http://hpics.li/bb97329
And when running with nsight, mean value is 48fps and framerate is stable.
http://hpics.li/5c4cd9a
Moreover, I’ve seen that CPU usage is twice as high when launching in stand-alone than with nsight attached.
I’ve seen there is a similar topic here:
https://devtalk.nvidia.com/default/topic/1011032/cuda-programming-and-performance/performance-is-better-about-10-when-using-nsight-visual-studio-2015-profiler-than-when-executing-the-exe/
And a few other topics on the forum… I’m trying to find the source of issue for months.
I’ve tried disabling “threaded optimization” option without success.
CPU is a core I7 6700.
GPU is Geforce 560ti and drivers are 385.41
I also checked with GPU-Z and gpu is running at the same clock in both cases.
The renderer uses OpenGl 4
Thanks,
Jean-Baptiste.