RFR (S): 8154975: Update for vectorizedMismatch with AVX512

Paul Sandoz paul.sandoz at oracle.com
Wed May 4 03:42:49 UTC 2016


> On 3 May 2016, at 17:57, Deshpande, Vivek R <vivek.r.deshpande at intel.com> wrote:
> 
> Hi Paul
> 
> We observed 2x gain with long arrays (1k bytes) over current intrinsic in avx2 using avx512.
> 

Ok, so grows ~linearly.

Do you observe any performance differences based on alignment, i.e. array-start/offset-address % 64 ?

Thanks,
Paul.


-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.openjdk.java.net/pipermail/hotspot-compiler-dev/attachments/20160503/4819f4b2/attachment-0001.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 841 bytes
Desc: Message signed with OpenPGP using GPGMail
URL: <http://mail.openjdk.java.net/pipermail/hotspot-compiler-dev/attachments/20160503/4819f4b2/signature-0001.asc>


More information about the hotspot-compiler-dev mailing list