[8u] RFR Backport of 8217896: Make better use of LCPUs when building on AIX

[Andrew Leonard]

Thanks Andrew,
and correct on non-SMT it produces the same value as the previous code 
did.
Cheers
Andrew Leonard
Java Runtimes Development
IBM Hursley
IBM United Kingdom Ltd
internet email: andrew_m_leonard at uk.ibm.com 




From:   Andrew Hughes <gnu.andrew at redhat.com>
To:     Andrew Leonard <andrew_m_leonard at uk.ibm.com>
Cc:     jdk8u-dev <jdk8u-dev at openjdk.java.net>
Date:   22/08/2019 12:27
Subject:        Re: [8u] RFR Backport of 8217896: Make better use of LCPUs 
when building on AIX



On Fri, 9 Aug 2019 at 16:17, Andrew Leonard <andrew_m_leonard at uk.ibm.com> 
wrote:
>
> Hi,
> Please can I request a review of this updated patch for 8217896 to
> backport to jdk8u. The patch is essentially the same, but jdk8 the
> build-performance.m4 is in a different location, with a different
> copyright year, and the generated-configure.sh generation.. I have built
> and tested this on our AIX machines.
> 
https://urldefense.proofpoint.com/v2/url?u=http-3A__cr.openjdk.java.net_-7Ealeonard_8217896_webrev.03_&d=DwIBaQ&c=jf_iaSHvJObTbx-siA1ZOg&r=NaV8Iy8Ld-vjpXZFDdTbgGlRTghGHnwM75wUPd5_NUQ&m=OF7K7wDyJgoEtbIWjBLRSOfAeIWJ69BzD5Oq9oZXc9Y&s=o1xgiBpcvP4vNaO9ISQgB0t2NhTZmvemuNEMeu877Mk&e= 

> Once reviewed I will add the jdk8u-fix-request.
> Thanks
> Andrew
>
> Andrew Leonard
> Java Runtimes Development
> IBM Hursley
> IBM United Kingdom Ltd
> internet email: andrew_m_leonard at uk.ibm.com
>
> Unless stated otherwise above:
> IBM United Kingdom Limited - Registered in England and Wales with number
> 741598.
> Registered office: PO Box 41, North Harbour, Portsmouth, Hampshire PO6 
3AU
>

Patch looks fine to me.

Out of interest, I presume the lcpu field is present with the same
value as prtconf on non-SMT machines, but has a higher value than that
returned by prtconf on SMT machines?

Thanks,
-- 
Andrew :)

Senior Free Java Software Engineer
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