High CPU usage with listener/talker on RPi

asked 2015-04-03 14:28:33 -0500

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I am using a Raspberry Pi running Debian with Indigo distro installed on it. I was surprised verifying that the simple listener/talker pair from the tutorials was consuming about 40-55% (20-30% each node) when the talker was running at 100Hz. The only modification made on the source was on the talker side to change the frequency. I would expect much less CPU load... Has anyone found similar issues? Does anyone have any idea why this happens? Could it be an issue on ros-comm package on RPi? Any clue?

Thanks in advance for your help.

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