Review Request: UseNUMAInterleaving

Paul Hohensee paul.hohensee at
Tue May 17 05:04:14 PDT 2011

I believe you can get memory geometry info from Solaris on both sparc or 
Don't know about Windows or Linux.  Anyone??


On 5/17/11 5:12 AM, Andrew Haley wrote:
> On 17/05/11 00:18, Paul Hohensee wrote:
>> I suggest you just use -XX:+UseNUMA rather than adding a new
>> flag. UseNUMA seems generic enough to cover whatever implementation
>> is best on a particular platform.
> Indeed.  I am worried by the proliferation of command-line
> optimization flags that have obscure meanings that are difficult to
> understand by anyone unfamiliar with a particular computer
> architecture.  This sort of tweakage might be mostly used by people
> doing benchmarking.
> When should this flag *not* be used?  To make it more useful, is it
> possible to make any of this the default?  Can a system where it is
> advantageous be autodetected?
> Andrew.

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