RFR (S): 8245129: Enhance jstat gc option output and tests

[Hohensee, Paul]

Thanks, Daniil! Pushed.

Paul

On 6/24/20, 4:07 PM, "Daniil Titov" <daniil.x.titov at oracle.com> wrote:

    Hi Paul,

    The change looks good to me.

    Thanks!
    --Daniil


    On 6/22/20, 8:48 AM, "serviceability-dev on behalf of Hohensee, Paul" <serviceability-dev-bounces at openjdk.java.net on behalf of hohensee at amazon.com> wrote:

        Thanks very much for review, Volker. I'll file a follow-up issue.

        One more reviewer, please? :)

        Paul

        On 6/22/20, 8:10 AM, "serviceability-dev on behalf of Volker Simonis" <serviceability-dev-bounces at openjdk.java.net on behalf of volker.simonis at gmail.com> wrote:

            Hi Paul,

            thanks for fixing jstat for larger heaps. I like that you've added
            explicit tests for ParallelGC which hasn't been tested since G1 was
            made the default collector.

            I also agree that sizes should all be right justified. I only wonder
            if the header of a right justified column shouldn't be right justified
            as well? However, taking into account that this already hasn't been
            handled consistently before your change, I'm fine to postpone that to
            a follow-up cleanup change.

            I think the change looks good so thumbs up from me.

            Thank you and best regards,
            Volker


            On Thu, Jun 18, 2020 at 11:53 PM Hohensee, Paul <hohensee at amazon.com> wrote:
            >
            > Ping. Any takers for this simple patch?
            >
            >
            >
            > Thanks,
            >
            > Paul
            >
            >
            >
            > From: serviceability-dev <serviceability-dev-bounces at openjdk.java.net> on behalf of "Hohensee, Paul" <hohensee at amazon.com>
            > Date: Monday, May 18, 2020 at 8:25 AM
            > To: serviceability-dev <serviceability-dev at openjdk.java.net>
            > Subject: RFR (S): 8245129: Enhance jstat gc option output and tests
            >
            >
            >
            > Please review an enhancement to the jstat gc option output to make the columns wider (for up to a 2TB heap) so one can read the output without going cross-eyed.
            >
            >
            >
            > Bug: https://bugs.openjdk.java.net/browse/JDK-8245129
            >
            > Webrev: http://cr.openjdk.java.net/~phh/8245129/webrev.00/
            >
            >
            >
            > I added tests using ParallelGC since the output can differ for non-G1 collectors. Successfully ran the test/hotspot/jtreg/serviceability/tmtools/jstat and test/jdk/sun/tools/jstat tests. A submit repo run had one failure
            >
            >
            >
            > runtime/MemberName/MemberNameLeak.java
            >
            > tier1
            >
            > macosx-x64-debug
            >
            >
            >
            > but rerunning it on my laptop succeeded, and there’s no connection between this test and my patch.
            >
            >
            >
            > Thanks,
            >
            > Paul
            >
            >
            >
            >