[Discuss-gnuradio] Performance problem with memmove

[Felix Wunsch]

Hi all,

while I was profiling and optimizing my DRM transmitter flow graph, I 
noticed that __memmove_sse3_back.S is the dominating part in my program, 
although I do not explicitly call memmove() once in my own code. I am 
using a vector based approach which leads to quite large buffers (and 
lots of gr-buffer warnings).

Does memmove get called in the buffer context and is it possible that 
this in combination with large buffers leads to a high CPU load?

Best regards,
Felix Wunsch