Re: [pcp] pcp updates: mem.util.available for kernels that don't export MemAvailable

[Nathan Scott <nathans@xxxxxxxxxx>]

Hi Mark,

----- Original Message -----
> [...] A new QA test is brewing
> to check this and a new pmie rule with syslog alerts for production
> environments might be warranted too.

Sounds good.  I've reverted 3c479d028 to give some minimal coverage
until then - you might find either pmprobe with a derived metric to
be a useful vehicle for doing that verification, or perhaps pmie.
(I'm not a huge fan of $PCP_QA_ESTIMATE_MEMAVAILABLE, FWIW - seems a
roundabout kind of way to check the value, the above two suggestions
might be simpler?  - *shrug* - your call of course).

Would you recommend updating the pmchart "Overview" view to use this
metric?  (this metric will be automatically included in the logged
set BTW, via src/pmlogconf/kernel/memory-linux - so nothing to do in
that neck of the woods).

cheers.

--
Nathan