POWER9: Is there a way to improve the random number generation on PPC64?

Gustavo Romero gromero at linux.vnet.ibm.com
Wed Nov 29 14:56:29 UTC 2017


Hi Volker,

On 29-11-2017 11:21, Volker Simonis wrote:
> I don't think that would be easy to do (if possible at all).
> 
> The correct way to handle such situations would be to define a Java
> method with the exact semantics of your 'darn' instruction. All the
> other logic should be implemented in Java. So for example you would
> implement SecureRandom.darn() and call it from engineNextBytes(). At
> the call site of darn() you check the error value and dispatch to the
> corresponding Java implementation if necessary.

I see. Thanks for advising.



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