Re: Combined metrics with PCP_DERIVED_CONFIG

[fche@xxxxxxxxxx (Frank Ch. Eigler)]

mspier wrote:

> [...] As of now, I need to fetch two metrics, kernel.all.cpu.sys and
> kernel.all.cpu.user, each returning a separate data structure and
> combine them.  [...]  And what I'm hoping to achieve is something
> like this: [...]

... to create a new metric with a indexed instance domain.  Sorry, I
don't think the current pmRegisterDerived(3) implementation allows
that.

(Perhaps code for parsing the separate metrics would be well-spent
investment anyway.  That's because eventually, you'll likely need
other metrics that can't be squished into a single instance-domained
derived one due to differences in type/scale.)

- FChE