Process and Network Metrics: Cumulative Sum Temporality

[ishleenk17]

Process and Network metrics are of cumulative sums temporality with monotonic values as per this discussion here.
Filing this issue to carry forward the discussion to unblock the PR.

[lahsivjar]

I looked at the data produced by system-integration from system.network.* + one of the process metrics (system.process.io.write_ops) and it looks like these metrics are indeed cumulative sums. So, our remapping logic should be correct for these. We would need to fix #15 but other than that looks like these metrics are expected to be cumulative + monotonically increasing metrics.

There is an issue with the host.network.* metrics which is a delta cumulative metric but I have opened a separate issue for this: #14

@ishleenk17 While I have not asserted for correctness of ALL the process metrics given that you have already validated the metrics I think we can close the issue.

[ishleenk17]

Closing the issue on the basis of above comment!