Hi Claes,

On 27/03/2020 10:11 am, Claes Redestad wrote:


On 2020-03-27 00:36, David Holmes wrote:


Okay so can you change the bug synopsis and description to cover this more general cleanup and tuneup please.

I filed an addendum RFE and will add this RFE bug id to the single
changeset push:
https://bugs.openjdk.java.net/browse/JDK-8241705

That works too :) Thanks.


I'm never very clear on the uses of these PerfCounters. It seems SUN_NS is unused after this change. The references to jvmstat seem no longer correct - these are read via jstat ?

The general confusion about PerfData/-Counters and what they're for is
why I'm trying to untangle this. Generally I think we should pull the
plug on it, but the perfdata shared file is tangled up with
functionality to detect running JVMs used by jcmd etc, so it might
take a few iterations to get there.

Yeah they confuse me. Which makes it hard to see what impact your changes may have.

Hopefully serviceability folk are more familiar with how things hook together.

Thanks,
David

/Claes

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