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Why does 'top' show three roslaunch processes?

asked 2012-08-16 07:35:55 -0500

ipso gravatar image

Whenever I use roslaunch to launch a launchfile (ha :)), the output of top (or htop) shows three roslaunch processes. One that is the parent of all nodes, and two more that have no children.

I could probably try to read the source of roslaunch, but does anyone here have any idea what those extra two are doing there? I've never seen more than 2, so it does not seem related to the number of nodes in the graph.

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answered 2012-08-16 09:50:15 -0500

jbohren gravatar image

What you're seeing are multiple threads in roslaunch. If you want to hide user threads in htop, you can type 'H'.

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Seems like your right. Thanks.

ipso gravatar image ipso  ( 2012-08-16 10:18:53 -0500 )edit

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Asked: 2012-08-16 07:35:55 -0500

Seen: 172 times

Last updated: Aug 16 '12