[prometheus-users] What is Rules "Evaluation Time" and "Last Evaluation"? Do I need to invest time into query tuning?

['Evelyn Pereira Souza' via Prometheus Users]

Hi

What is Rules "Evaluation Time" and "Last Evaluation"?

Dashboard: https://example.org/prom/new/rules

Most is some value like "0.xxxms" which seems fast

But this


and



Do I need to invest time into query tuning?

best regards

Evelyn

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node_systemd_unit_state{instance=~".+yyy.+",name=~"bbb.+",state="failed"} == 1 is 3.635ms probe_ssl_earliest_cert_expiry{module=~".+-mmm-.+example.org.+|.+-ppp-.+example.net.+"} - time() < 86400 * 30 is 16.605ms

OpenPGP_0x61776FA8E38403FB.asc
Description: application/pgp-keys

OpenPGP_signature
Description: OpenPGP digital signature