Copy head@r302406 to stable/11 as part of the 11.0-RELEASE cycle.
Prune svn:mergeinfo from the new branch, as nothing has been merged
here.

Additional commits post-branch will follow.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Revert r253748,253749

This WIP should not have been committed yet.

Pointyhat to: avg

remove needless inclusion of machine/cpu.h in userland

MFC after: 21 days

Fix missing argument for errx().
While here, clean up the code a bit.

$Id$ -> $FreeBSD$

Implemented `-c command'.

Fixed bitrot (__dead went away; EOF is now wrong for the getopt failure
value).

Moved sleep command to the end of the main loop to avoid mismatch between
main loop and the report loop. There is an extra iteration that could be
used to calibrate the loop overhead, but was used to report wrong results.

Fixed usage message.

Revert $FreeBSD$ to $Id$

Make the long-awaited change from $Id$ to $FreeBSD$

This will make a number of things easier in the future, as well as (finally!)
avoiding the Id-smashing problem which has plagued developers for so long.

Boy, I'm glad we're not using sup anymore. This update would have been
insane otherwise.

This commit was generated by cvs2svn to compensate for changes in r14895,
which included commits to RCS files with non-trunk default branches.

A sample program for /dev/perfmon