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Re: [PATCH] powerpc64: strrchr optimization for power8
- From: Carlos O'Donell <carlos at redhat dot com>
- To: Rajalakshmi Srinivasaraghavan <raji at linux dot vnet dot ibm dot com>, libc-alpha at sourceware dot org
- Date: Mon, 20 Feb 2017 08:42:58 -0500
- Subject: Re: [PATCH] powerpc64: strrchr optimization for power8
- Authentication-results: sourceware.org; auth=none
- References: <1487070321-27700-1-git-send-email-raji@linux.vnet.ibm.com>
On 02/14/2017 06:05 AM, Rajalakshmi Srinivasaraghavan wrote:
> P7 code is used for <=32B strings and for > 32B vectorized loops are used.
> This shows as an average 25% improvement depending on the position of search
> character. The performance is same for shorter strings.
> Tested on ppc64 and ppc64le.
What did you use to test the 25% improvement?
--
Cheers,
Carlos.