mtr has high CPU use when paused

[clickwir]

While running mtr, hitting 'P' to pause, causes CPU use to ramp up. Pressing 'space' to unpause, resumes normal function and CPU use. This consumes one (1) core at 100%.

While running mtr, hitting 'H' to get the help menu also pauses the current traceroute/ping process while displaying a Help menu. However, this pause does not cause excess CPU use and normal function and CPU use are resumed when leaving the Help screen.

sudo apt-cache policy mtr-tiny
mtr-tiny:
  Installed: 0.85-3
  Candidate: 0.85-3
  Version table:
 *** 0.85-3 0
        500 http://mirrors.advancedhosters.com/ubuntu/ vivid/main amd64 Packages
        500 http://mirror.symnds.com/ubuntu/ vivid/main amd64 Packages
        100 /var/lib/dpkg/status

uname -a
Linux mach 3.19.0-21-generic #21-Ubuntu SMP Sun Jun 14 18:31:11 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

Kubuntu 15.04 64bit

[clickwir (clickwir)]

Package change from mtr to mtr-tiny.

[clickwir (clickwir)]

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."

[clickwir (clickwir)]

Stable release 0.86 / December 9, 2014; 9 months ago

Can we please have an updated version?

Here's even a link for the source: ftp://ftp.bitwizard.nl/mtr/mtr-0.86.tar.gz

[clickwir (clickwir)]

ftp://ftp.bitwizard.nl/mtr/mtr-0.86.diff
ftp://ftp.bitwizard.nl/mtr/mtr-0.86.tar.gz