QA output created by 954
=== one config ===
pmLoadConfig(TMP.c1) -> 1
qa.a
lock(derived_metric)
lock(derived_metric) [count=2]
unlock(derived_metric) [count=1]
lock(derived_metric) [count=2]
unlock(derived_metric) [count=1]
lock(derived_metric) [count=2]
unlock(derived_metric) [count=1]
unlock(derived_metric)
lock(derived_metric)
unlock(derived_metric)
lock(derived_metric)
unlock(derived_metric)

=== two configs ===
pmLoadConfig(TMP.c1) -> 1
pmLoadConfig(TMP.c2) -> 1
qa.a
qa.b
lock(derived_metric)
lock(derived_metric) [count=2]
unlock(derived_metric) [count=1]
lock(derived_metric) [count=2]
unlock(derived_metric) [count=1]
lock(derived_metric) [count=2]
unlock(derived_metric) [count=1]
unlock(derived_metric)
lock(derived_metric)
lock(derived_metric) [count=2]
unlock(derived_metric) [count=1]
unlock(derived_metric)
lock(derived_metric)
unlock(derived_metric)
lock(derived_metric)
unlock(derived_metric)
