RFR: 8288667: Reduce runtime of java.text microbenchmarks

[David Schlosnagle]

On Fri, 17 Jun 2022 12:59:17 GMT, Claes Redestad <redestad at openjdk.org> wrote:

> - Refactor micro using a range of parameters to a simpler benchmark that tests different values in one pass
> - Reduce iterations and their runtimes, but add forks (important to be able to detect run-to-run variation anomalies)
> 
> Just one micro modified in this package, but reduces total runtime from 16 minutes to ~1 minute

test/micro/org/openjdk/bench/java/text/DefFormatterBench.java line 65:

> 63:     @Benchmark
> 64:     public void testDefNumberFormatter(final Blackhole blackhole) {
> 65:         for (double value : values) {

Should this now include `@OperationsPerInvocation(13)` since the loop is performing multiple operations per invocation?

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PR: https://git.openjdk.org/jdk/pull/9198