RFR : PPC64 : Need support for VSR spills in ppc.ad

[Doerr, Martin]

Hi Gustavo,

we currently run a few nightly tests for jdk9, jdk10, jdk/jdk and jdk/hs on PPC64le.
(And a lot more for SAP JVM.)
The change is currently in jdk/hs where we have quite a few tests. It will probably get merged to jdk/jdk soon.

For jdk8u, you will have to perform all testing on your own.

Best regards,
Martin


-----Original Message-----
From: Gustavo Romero [mailto:gromero at linux.vnet.ibm.com] 
Sent: Mittwoch, 24. Januar 2018 15:19
To: Doerr, Martin <martin.doerr at sap.com>; Michihiro Horie <HORIE at jp.ibm.com>
Cc: Lindenmaier, Goetz <goetz.lindenmaier at sap.com>; hotspot-dev at openjdk.java.net; ppc-aix-port-dev at openjdk.java.net
Subject: Re: RFR : PPC64 : Need support for VSR spills in ppc.ad

Hi Martin,

On 01/24/2018 11:48 AM, Doerr, Martin wrote:
> Hi Gustavo,
> 
>> Do you suggest testing it in any particular way or should we wait
>> OpenJDK 11 LTS goes GA so it begins to be tested more widely once it reaches
>> out the distros (Ubuntu, SLES, and RHEL)?
> We have nightly tests for jdk/hs so it gets tested automatically to some extent. More tests will run when we integrate it into SAP JVM.
> So I think you don't necessarily have to wait until GA.

I see. Thanks for sharing this information.


> Backport changes should be tested better than running a few tests for a couple of days. Maybe you have nightly tests for 8u where you can test the backport for some time? I think this would be ideal. Otherwise, I'm a little concerned about possibly required shared fixes which were not backported to 8u.

Unfortunately I dont't have a setup ready. I'll have to check if somebody
working on AdoptOpenJDK.net / PowerPC initiative can help on that. Otherwise I
need to setup something manually, but it would cover just POWER8 LE. I've
already talked to Volker about it in the past but I never got the proper
infrastructure resources to make it happen. Btw, I think SAP is not testing 8u
for ppc64le [1], correct?  But is jdk/hs tested on ppc64le or SAP does
not perform nightly tests on LE at all?


>> I think you can still be a (r)eviewer even not being an 8u (R)eviewer in case a
>> backport does not apply cleanly to 8u and needs a new review on the hotspot ML?
> I can answer questions or write an additional review.

Thanks a lot. That would be very helpful.


Best regards,
Gustavo

[1] http://mail.openjdk.java.net/pipermail/ppc-aix-port-dev/2017-October/003216.html