RFR(S): 8205194: Improve the Array Comparison when there is a mismatch at first element.
Deshpande, Vivek R
vivek.r.deshpande at intel.com
Tue Jun 19 16:36:25 UTC 2018
Thanks David.
Sending it to core-libs-dev.
I would like to contribute a patch which improves the array comparison when there is a mismatch for the first element.
This avoids call to vectorizedMismatch method and gives ~80x speed up.
Could you please review and sponsor the patch.
Link to bug:
https://bugs.openjdk.java.net/browse/JDK-8205194
webrev:
http://cr.openjdk.java.net/~vdeshpande/vectorizedMismatch_jdk/webrev.00/
Regards,
Vivek
-----Original Message-----
From: David Holmes [mailto:david.holmes at oracle.com]
Sent: Monday, June 18, 2018 10:32 PM
To: Deshpande, Vivek R <vivek.r.deshpande at intel.com>; jdk-dev at openjdk.java.net
Subject: Re: RFR(S): 8205194: Improve the Array Comparison when there is a mismatch at first element.
Hi Vivek,
Reviews should take place on the appropriate mailing list for the code being changed, not on the jdk-dev list. Please takes this to core-libs-dev.
Thanks,
David
On 19/06/2018 9:52 AM, Deshpande, Vivek R wrote:
> Hi All
>
> Forgot to add the links:
> https://bugs.openjdk.java.net/browse/JDK-8205194
> webrev:
> http://cr.openjdk.java.net/~vdeshpande/vectorizedMismatch_jdk/webrev.0
> 0/
>
> Regards.
> Vivek
>
> From: Deshpande, Vivek R
> Sent: Monday, June 18, 2018 4:50 PM
> To: 'jdk-dev at openjdk.java.net' <jdk-dev at openjdk.java.net>
> Cc: 'Paul Sandoz' <paul.sandoz at oracle.com>; Viswanathan, Sandhya
> <sandhya.viswanathan at intel.com>
> Subject: RFR(S): 8205194: Improve the Array Comparison when there is a mismatch at first element.
>
> Hi All
>
> I would like to contribute a patch which improves the array comparison when there is a mismatch for the first element.
> This avoids call to vectorizedMismatch method and gives ~80x speed up.
> Please review and sponsor the patch.
>
> Regards,
> Vivek
>
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