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# Cobalt System Metrics Daemon
The Cobalt System Metrics Daemon starts early after boot on a Fuchsia system
and periodically measures several system metrics and logs the values to Cobalt.
The daemon is not part of the Cobalt telemetry system but rather a client
of it that happens to be owned by the Cobalt team.
If you would like to start measuring a new system metric on Fuchsia you might
consider adding the instrumentation to this daemon. That would be appropriate if
- the metric is about the Fuchsia system as a whole
- there is no other Fuchsia component where it would be more appropriate to
add the instrumentation
- the instrumentation periodically polls some measurement