| To: | Amer Ather <aather@xxxxxxxxxxx> |
|---|---|
| Subject: | Re: pcp grafana and graphite - How to convert pcp metric values into percent |
| From: | fche@xxxxxxxxxx (Frank Ch. Eigler) |
| Date: | Tue, 01 Jul 2014 23:33:02 -0400 |
| Cc: | pcp@xxxxxxxxxxx, Martin Spier <mspier@xxxxxxxxxxx> |
| Delivered-to: | pcp@xxxxxxxxxxx |
| In-reply-to: | <CAM1aq-Hr2ss+b82p1EMCRTjK_Vsbnde_tKVv53MQfP25p4e-aw@xxxxxxxxxxxxxx> (Amer Ather's message of "Tue, 1 Jul 2014 11:44:23 -0700") |
| References: | <CAM1aq-HG2oJxCx1EAA0Zr+W7-NsSmVfThb8zG35FOKC4mbbnww@xxxxxxxxxxxxxx> <y0mha353ky5.fsf@xxxxxxxx> <y0m8uoh3kf4.fsf@xxxxxxxx> <002d01cf9284$dc8fe570$95afb050$@internode.on.net> <002f01cf9285$f0c63160$d2529420$@internode.on.net> <CAM1aq-HgP5+Tsq_sCLWH6GrLOn8UXQWaEVkVaC1p=TT_kMn6Tg@xxxxxxxxxxxxxx> <20140629220735.GA13993@xxxxxxxxxx> <CAM1aq-Hr2ss+b82p1EMCRTjK_Vsbnde_tKVv53MQfP25p4e-aw@xxxxxxxxxxxxxx> |
| User-agent: | Gnus/5.1008 (Gnus v5.10.8) Emacs/21.4 (gnu/linux) |
Amer Ather <aather@xxxxxxxxxxx> writes: > [...] grafana/graphite reports these values from archives correctly > in percent. However, pmapi fetch returns wrong values: [...] The graphite emulation code in pmwebd performs rate conversion (since it has easy historical data to go from); the PMWEBAPI part passes raw metric values (and libpcp doesn't want to rate-convert [1]). This could explain the mismatch between your expectations and what you're seeing. [1] http://oss.sgi.com/archives/pcp/2014-05/msg00104.html - FChE |
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