Make Timer and LongTaskTimer output similar in LoggingMeterRegistry

[jonatan-ivanov]

In case of the LoggingMeterRegistry, the output of a LongTaskTimer looks like this:

"my.ltt{} active=30 duration=30m"

while the output of a Timer is something like this:

"my.timer{} delta_count=30 throughput=0.5/s mean=1s max=1s"

We can add the missing fields to the LongTaskTimer output:

"my.ltt{} active=30 duration=30m throughput=0.5/s mean=1m max=1m"

[shakuzen]

I'm not sure how useful/meaningful throughput is when we're talking about active (unfinished) measurements. Other parts I can understand but what does throughput mean in this context?

• active=30 there are 30 unfinished measurements now
• duration=30m the sum of time taken so far for each of the measurements is 30 minutes
• mean=1m the average elapsed time of all the active tasks is one minute
• max=1m the longest active task has been running for one minute so far
• throughput=0.5/s ???

[jonatan-ivanov]

I thought the rate you tasks are starting but looking into the calculation behind it, mathematically it does not really mean anything (active tasks/step duration), I'm removing it.