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tests: add utility to easily profile node performance with perf #14519

Merged
merged 2 commits into from Feb 5, 2019
Merged

tests: add utility to easily profile node performance with perf #14519

merged 2 commits into from Feb 5, 2019

Commits on Jan 22, 2019

  1. tests: add utility to easily profile node performance with perf 

    Introduces `TestNode.profile_with_perf()` context manager which
samples node execution to produce profiling data.

Also introduces a test framework flag, `--perf`, which will run
perf on all nodes for the duration of a given test.
    @jamesob
    jamesob committed Jan 22, 2019
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  2. docs: add perf section to developer docs

    @jamesob
    jamesob committed Jan 22, 2019
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