Elastic apm, what is transaction.duration.us?

Question

I'd like to measure avg request-response time for my webserver.

Apm has transaction.duration.us and it seems this could be the metric I'm looking for.

But I coulnd't find the documentation what it is.

Where can I find the meaning of the variable?

Answer 1

transaction.duration.us should indeed be what you're looking for. It's the duration in microseconds as an integer. Divide it by 1000 to get milliseconds, or by 1'000'000 to get seconds.

https://www.elastic.co/guide/en/apm/server/7.9/exported-fields-apm-transaction.html#_duration_2