Feature - Improve filters for processes collector

[gillg]

Hello,

I would be able to chose dynamicaly process metrics to collect instead / in addition of whitelist, blacklist.

The idea would be to add a filter based on one of the metrics, with a thresold, and a topK process matching. I don't know what is possible with WMI queries, or if we have to getall metrics then order + slice in go.

Possible config :

collectors:
  # Adapt collectors to enable
  enabled: process

collector:
  process:
    filters:
      windows_process_working_set_bytes: 
        # all process above 2g
        min_thresold: 2g
        # only ten first
        limit: 10
      # implicit OR ?
      windows_process_thread_count:
        min_thresold: 300
        limit: 5

Any other ideas are welcome... To monitor the CPU, it seems more complicated (not realistic ?) because we only have a CPU total time, except if you are aware of a perfcounter for percentage.

Any idea on the feasability ? Anyone with some knowlegde on WMI ?

[breed808]

Apologies for the large delay in responding to this!

We currently use Perflib as the metric source for the process collector, and I don't think it would be prohibitively difficult to implement the proposed filtering.

Would you like to submit a Pull Request for this? If not I may be able to get to this in the next couple of weeks.

[gillg]

Hello ! No worries for the delay, I'm not enough comfortable with perflib and Golang to propose a PR, but glad to hear it seems not really difficult. I take any additional ideas for the config format. I don't know if a list instead of map under "filters" could make sense to allow multiple OR filters on the same metric.

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