RFR(integration blocker): 8191373: Multiple NUMA nodes expected

[Volker Simonis]

Hi Gustavo,

as our "PowerPC NUMA expert", do you see any problem with this change?

Thank yo uand best regards,
Volker


On Fri, Nov 17, 2017 at 3:10 PM, Robbin Ehn <robbin.ehn at oracle.com> wrote:
> Hi all, please review.
>
> Windows needs to run os::init_2 before allocation polling page to proper
> setup numa. I saw no reason not to have it for all platforms after init_2.
>
> Bug: https://bugs.openjdk.java.net/browse/JDK-8191373
>
> Code below.
>
> Tested tier 1-5/1-3
>
> Thanks, Robbin
>
> diff -r b4d2929683b6 src/hotspot/share/runtime/thread.cpp
> --- a/src/hotspot/share/runtime/thread.cpp      Fri Nov 17 02:50:51 2017
> +0100
> +++ b/src/hotspot/share/runtime/thread.cpp      Fri Nov 17 13:30:28 2017
> +0100
> @@ -3560,10 +3560,10 @@
>    TraceTime timer("Create VM", TRACETIME_LOG(Info, startuptime));
>
> -  SafepointMechanism::initialize();
> -
>    // Initialize the os module after parsing the args
>    jint os_init_2_result = os::init_2();
>    if (os_init_2_result != JNI_OK) return os_init_2_result;
>
> +  SafepointMechanism::initialize();
> +
>    jint adjust_after_os_result = Arguments::adjust_after_os();
>    if (adjust_after_os_result != JNI_OK) return adjust_after_os_result;