code even works. No one has ever cared about this anyway, and we won't
maintain it.
While here, fix the mask on the counter - K7 and F10H have 48bit counters.
the DTLB misses on large pages for example.
While here, remove a few K7 flags that do not actually exist on K7 (there
must have been a confusion between K7 and K8); and make the 'pmc list'
command a little more user-friendly.
the PMCs are system-wide, fine-grained and more tunable by the user.
We don't do application tracking, since it would require to store the PMC
values in mdproc and starting/stopping the counters on each context switch.
While this doesn't seem to be particularly difficult to achieve, I don't
think it is really interesting; and if someone really wants to measure
the performance of an application, they can simply schedctl it to a cpu
and look at the PMC results for this cpu.
Note that several options are implemented but not yet used.
* There is no -indent option to .Bd or .Bl, although you would
never know that from its frequent use in this tree. There is a
"-offset indent" combination that makes sense, and you can certainly
say "-width indent".
* Also, you can't markup the -width option argument, tho you CAN
use a callable macro. So "-width Ar filename" doesn't make sense,
but either "-width Ar" or "-width filename" does, as might something
like "-width xxfilename" for a little extra space.
* There are a lot of needlessly complex hanging tag macros in man4 used
to create simple item lists. Those should be simplified one of these
days before someone copies and edits yet another man4 page.
wiz