5804
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Ran 18 Apr 2017 09:55PM UTC

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Files 175

Run time 10s

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Build # 5804

Build Type

push

travis-ci

Committed by

web-flow

Commit Message

pally: Add histograms for tracking latency (#937)

To round out the basic metric types, we need some way to track RPC latencies.
The best approach is to use histograms - it's both more correct and matches the
stats that Muttley collects.

This PR adds scalar and vectorized histograms to Pally, along with test
coverage. (See the package-level Pally documentation for an explanation of
vector types).

Down the road, we'll need to come back and optimize the Tally export path; right
now, we take the simple approach of just calling
`tally.Histogram.ObserveDuration` multiple times with the same value. This isn't
ideal, since it forces Tally to binary search for the correct histogram bucket
repeatedly.

This is one sub-task of T841911.

Run Details

8686 of 10703 relevant lines covered (81.15%)

43.16 hits per line

Jobs

ID	Job ID	Ran	Files	Coverage
2	5804.2 (CI_TYPES='deps examples goveralls' SUPPRESS_DOCKER=1 SUPPRESS_CROSSDOCK=1)	18 Apr 2017 09:55PM UTC	0	81.15	Travis Job 5804.2

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