Ability to add "jvm arguments" based on "@Param"

[Vladimir Sitnikov]

Hi,

It looks like it is a bit hard to benchmark cases when they require
different values of jmv arguments.

For instance, if you want to compare benchmarks that differ only in
values of -D properties, then you can't have the overall report that
includes both cases.

In other words, you would have a couple of different result tables,
while it would be nice to have a single summary one with a small tiny
column that tells what was the parameter.


I did not yet dig into the details how that could be implemented.


It looks like the following might fly: add
"OptionsBuilder.preProcessor(Consumer<OptionsBuilder> preprocessor)".
For each benchmark method, jmh would create a child OptionsBuilder and
call preprocessor on it, so each method could have a bit different
arguments.

We might even combine that with "skip this combination" feature. In
other words, allow that "options preprocessor" to veto execution with
given combinations of parameters.



Please, please tell me I am overengineering and jmh can use @params
for stuffing jvmArgs already.

-- 
Regards,
Vladimir Sitnikov