"pkd" process on El Capitan I just upgraded to OS X 10.11.2 (El Cap), and overall it seems to be working OK.

One strange thing: there's a "pkd" process which is taking ~150% CPU, all the time, even though I'm not doing anything.

(At first I thought it might have something to do with Spotlight reindexing or something, but 12 hours later it's still going.)

What is it?  Can I stop it?
The manpage says:

NAME
 pkd -- management and supervision daemon for plug-in services

SYNOPSIS
 pkd [-v]

DESCRIPTION
 pkd manages plug-ins for the PlugInKit subsystem. It is a classic launch
 agent managed by launchd.


Sounds pretty safe to kill it off, by opening a terminal and running:

launchctl stop com.apple.pluginkit.pkd


It should restart itself whenever it's required (possibly immediately).