Ability to control the benchmark iterations

[prudhvigodithi]

Coming from the implementation in apache/lucene#15383 when I wanted to test the benchmark for small patch changes I have to wait until all the jvmCount iterations are completed. From my understanding jvmCount is how many separate JVM processes are launched and taskRepeatCount is how many times each query runs within a single JVM ?

It would be good to control these with args like -iterations (updating https://github.com/mikemccand/luceneutil/blob/main/src/python/competition.py#L443) and -warmups (updating https://github.com/mikemccand/luceneutil/blob/main/src/python/competition.py#L442C5-L442C20).

[mikemccand]

+1 I love this idea! You can already control them in the Python Competition you set up (if you use custom Python script to run benchy)... we just need to punch command-line option through to src/python/localrun.py.

[prudhvigodithi]

Created a PR for this change, please check #493.
Thanks