Additional: I removed mtr-tiny and installed mtr. Running mtr opens a GUI window and that can be paused and unpaused without affecting the CPU use. However, adding the '-t' option to run in curses mode, will reproduce the high CPU use when paused.
According to ftp://ftp.bitwizard.nl/mtr/mtr-0.86.diff there is a fix for this in the latest version.
"+ Fixed (longstanding) bug that mtr used 100% cpu when paused."
Additional: I removed mtr-tiny and installed mtr. Running mtr opens a GUI window and that can be paused and unpaused without affecting the CPU use. However, adding the '-t' option to run in curses mode, will reproduce the high CPU use when paused.
According to ftp://ftp. bitwizard. nl/mtr/ mtr-0.86. diff there is a fix for this in the latest version.
"+ Fixed (longstanding) bug that mtr used 100% cpu when paused."