[cpu] - Split the initialisation into multiple files #194
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VihasMakwana
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Team:Elastic-Agent-Data-Plane
leehinman
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Dec 3, 2024
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This PR is a split from #192.
It aims to simplify the query building for performance counters.
Using a global variable might create problems if multiple modules (
cpuandcore) are trying to initialise it at a same time.sync.Onceadds unnecessary CPU overhead (makes it 4x slower).Instead, we can initialise the performance counters in
New(...)and return error to the caller (i.e. metricbeat).