Attention: Answers.ros.org is deprecated as of August the 11th, 2023. Please visit robotics.stackexchange.com to ask a new question. This site will remain online in read-only mode during the transition and into the foreseeable future. Selected questions and answers have been migrated, and redirects have been put in place to direct users to the corresponding questions on Robotics Stack Exchange. Additional details are available here.

Extreme CPU usage when ploting using rxplot and rxbag tools

asked 2013-02-20 09:07:01 -0500

dmeltz
192 ●16 ●21 ●25

updated 2014-01-28 17:15:20 -0500

ngrennan
1 ●1 ●1

Hello all.

For some reason when I plot data using rxgraph or rxbag tools, the CPU usage explodes.

For example : I trying to plot some fields of a topic that consist of 20 numerical fields and published on rate of 10Hz (not a high rate for my understanding). when I attempt to plot at the same time 10 different graphs, the CPU usage jumps to over 90%. The CPU usage not really improves even if I record and play a bag file.

Can anyone offer an explanation for this phenomenon ? Or suggest a way to deal with this problem ?

edit retag flag offensive close merge delete

add a comment

1 Answer

Sort by » oldest newest most voted

answered 2013-02-20 10:20:27 -0500

fergs

13902 ●59 ●157 ●196 http://www.robotandchisel.com

rxgraph is pretty old and has degraded over time. I would suggest checking out rqt if you are using ROS Fuerte or Groovy. RQT is much better maintained at this point in time.

edit flag offensive delete link

add a comment

Question Tools

Stats

Asked: 2013-02-20 09:07:01 -0500

Seen: 159 times

Last updated: Feb 20 '13

Extreme CPU usage when ploting using rxplot and rxbag tools edit

1 Answer

Question Tools

Stats

Related questions

Extreme CPU usage when ploting using rxplot and rxbag tools