RFR: 8287384: Speed up jdk.test.lib.util.ForceGC

[Daniel Fuchs]

On Thu, 26 May 2022 18:50:07 GMT, Xue-Lei Andrew Fan <xuelei at openjdk.org> wrote:

> Hi,
> 
> May I have this test update reviewed?
> 
> The ForceGC could be enhanced by using smaller wait/sleep time, and shared cleaner.
> 
> Thanks,
> Xuelei

LGTM - but it may be good to have an other reviewer (@mlchung ?)

test/lib/jdk/test/lib/util/ForceGC.java line 50:

> 48:             for (int i = 0; i < 100; i++) {
> 49:                 System.gc();
> 50:                 System.out.println("doIt() iter: " + iter + ", gc " + i);

Maybe the trace should be printed only if `(i % 10 == 0) && (iter % 100 == 0)` to avoid having too many traces in the log?

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Marked as reviewed by dfuchs (Reviewer).

PR: https://git.openjdk.java.net/jdk/pull/8907