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

[Deshpande, Vivek R]

Hi Paul

We observed 2x gain with long arrays (1k bytes) over current intrinsic in avx2 using avx512.

Regards,
Vivek


From: hotspot-compiler-dev [mailto:hotspot-compiler-dev-bounces at openjdk.java.net] On Behalf Of Paul Sandoz
Sent: Tuesday, May 03, 2016 5:30 PM
Cc: hotspot-compiler-dev at openjdk.java.net
Subject: Re: RFR (S): 8154975: Update for vectorizedMismatch with AVX512

Hi Vivek,

Do you have any details on the performance you can share?

Thanks,
Paul.

On 22 Apr 2016, at 18:10, Deshpande, Vivek R <vivek.r.deshpande at intel.com<mailto:vivek.r.deshpande at intel.com>> wrote:

Hi all

I would like to contribute a patch with AVX512 support for the vectorizedMismatch intrinsic.
Could you please review and sponsor this patch.

Bug-id:
https://bugs.openjdk.java.net/browse/JDK-8154975
webrev:
http://cr.openjdk.java.net/~vdeshpande/8154975/webrev.00/

Thanks and regards,
Vivek

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