i'm using telegraf and i can see that the n_cpus field is available under
systems. i also see that there is the load1 field.
what i would like to do is to plot the total total stacked loads of a selection
of hosts and have that overlaid with the total number of cores as a threshold
line. i'm essentially trying to replicate the ganglia cpu/load plot.
so far i have (in grafana):
SELECT mean("load1") FROM "system" WHERE "host" =~ /$hosts/ AND $timeFilter
GROUP BY time($interval), "host" fill(null)
and
SELECT sum("n_cpus") AS n_cpus FROM "system" WHERE "host" =~ /$hosts/ AND
$timeFilter GROUP BY time($interval) fill(null)
however, the latter does a sum of all values - given that telegraf runs every
10s, it ends up overcounting the actual number of cpus in the system.
how can i get a meangingful count of the number of cpus in in $hosts?
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