Enable optimization of arraycopy as loads/stores with Shenandoah

Aleksey Shipilev shade at redhat.com
Thu Dec 8 15:38:27 UTC 2016


On 12/08/2016 03:55 PM, Roman Kennke wrote:
> Am Donnerstag, den 08.12.2016, 15:15 +0100 schrieb Roland Westrelin:
>> http://cr.openjdk.java.net/~roland/shenandoah/arraycopy/webrev.00/
>>
>> This re-enables an optimization that was disabled with shenandoah.
> 
> Cool! I like that!
> 
> Do we have any idea if it does improve performance? That would be
> arraycopy on smallish arrays only right? Aleksey?

Let me find the arraycopy tests (that I swear I did in OpenJDK for the previous
Roland's non-Shenandoah patch :) and run then.

Thanks,
-Aleksey



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