[Bug 1627414] [NEW] gpg-agent is waking up on a pselect about every 2 seconds on an idle system

[Colin Ian King]

Public bug reported:

While trying to identify processes that are causing system wakeups while
idle, I observed that gpg-agent is waking up on a pselect about every 2
seconds.  I observed this activity using health-check and monitoring the
gpg-agent for 5 minutes on an idle system:

sudo apt install health-check
sudo health-check -p gpg-agent -c -f -r -d 300

Attached is a log of the output analysis from health-check

Should gpg-agent be that busy for an idle machine? Unnecessary wakeups
break a CPU from the deepest sleep states and this consumes power.

** Affects: gnupg2 (Ubuntu)
     Importance: Undecided
         Status: New

** Attachment added: "gpg-agent.log"
   https://bugs.launchpad.net/bugs/1627414/+attachment/4748198/+files/gpg-agent.log

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https://bugs.launchpad.net/bugs/1627414

Title:
  gpg-agent is waking up on a pselect about every 2 seconds on an idle
  system

Status in gnupg2 package in Ubuntu:
  New

Bug description:
  While trying to identify processes that are causing system wakeups
  while idle, I observed that gpg-agent is waking up on a pselect about
  every 2 seconds.  I observed this activity using health-check and
  monitoring the gpg-agent for 5 minutes on an idle system:

  sudo apt install health-check
  sudo health-check -p gpg-agent -c -f -r -d 300

  Attached is a log of the output analysis from health-check

  Should gpg-agent be that busy for an idle machine? Unnecessary wakeups
  break a CPU from the deepest sleep states and this consumes power.

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