feat: add pprof profiles multiplexing #898
Merged
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The PR addresses #818.
It's important to note that this affects only pprof format (Go clients). Profiles of other formats are ingested one by one, making it almost impossible to merge scope-tagged ones (with
profile_id
label) into "baseline" profiles. This is not a problem as for now because the tracing integration support was announced only for Go; in future we should either implement this logic in the client libraries, or switch to pprof.