8188131: [PPC] Increase inlining thresholds to the same as other platforms

[Doerr, Martin]

Hi Ogata,

sorry for the delay. I had missed this one.

The change looks feasible to me.

It may only impact the utilization of the Code Cache. Can you evaluate that (e.g. by running large benchmarks with -XX:+PrintCodeCache)?

Thanks and best regards,
Martin


-----Original Message-----
From: hotspot-dev [mailto:hotspot-dev-bounces at openjdk.java.net] On Behalf Of Kazunori Ogata
Sent: Freitag, 29. September 2017 08:42
To: hotspot-dev at openjdk.java.net; ppc-aix-port-dev at openjdk.java.net
Subject: RFR: 8188131: [PPC] Increase inlining thresholds to the same as other platforms

Hi all,

Please review a change for JDK-8188131.

Bug report: https://bugs.openjdk.java.net/browse/JDK-8188131
Webrev: http://cr.openjdk.java.net/~horii/8188131/webrev.00/

This change increases the default values of FreqInlineSize and 
InlineSmallCode in ppc64 to 325 and 2500, respectively.  These values are 
the same as aarch64.  The performance of TPC-DS Q96 was improved by about 
6% with this change.


Regards,
Ogata