Is printing serialized?

[vemv]

I'm trying eftest using all of my 16 cores and am seeing this partially garbled output:

Testing
Testing gpml.db.updater-test

Testing
Testing
Testing  gpml.handler.auth-test

Testing gpml.handler.activity-test
gpml.handler.technology-test
Testinggpml.handler.favorite-test

Testing gpml.handler.policy-test

Testing
 gpml.db.landing-test

Testing gpml.handler.util-test
gpml.db.activity-testgpml.handler.resource.translation-test

Thanks - V