Re: pcp grafana and graphite - How to convert pcp metric values into percent

[fche@xxxxxxxxxx (Frank Ch. Eigler)]

> [...]
> This sort of thing could be expressed at the PCP level in at least two
> ways: client-side derived metrics, or the server-side pmdasummary.
> The former looks more appropriate here, but pmwebd doesn't have
> support for that just yet.  Lemme go hack a little bit.

Actually, hacking not required.  libpcp already automagically lets you
add derived metrics to any pcp client using the $PCP_DERIVED_CONFIG
environment variable.  See man PCPintro(1) & pmLoadDerivedConfig(3).

- FChE