[Bug 1468202] Re: mtr has high CPU use when paused

[clickwir]

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

** Changed in: mtr (Ubuntu)
       Status: New => Confirmed

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Title:
  mtr has high CPU use when paused

Status in mtr package in Ubuntu:
  Confirmed

Bug description:
  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

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