Investigate parallelizing Ant junit tests
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Key: LUCENE-2096
URL: https://issues.apache.org/jira/browse/LUCENE-2096
Project: Lucene - Java
Issue Type: Improvement
Components: Build
Reporter: Erick Erickson
Assignee: Erick Erickson
Priority: Minor
Ant Contrib has a "ForEach" construct that may speed up running all of the
Junit tests by parallelizing them with a configurable number of threads. I
envision this in several stages. First, see if ForEach works for us with
hard-coded lists, distribute this for testing then make the changes "for real".
I intend to hard-code the list for the first pass, ordered by the time they
take. This won't do for check-in, but will give us a fast proof-of-concept.
This approach will be most useful for multi-core machines.
In particular, we need to see whether the parallel tasks are isolated enough
from each other to prevent mutual interference.
All this assumes the fragmentary reference I found is still available...
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