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Re: [PATCH] Optimized generic expf and exp2f
- From: Szabolcs Nagy <szabolcs dot nagy at arm dot com>
- To: GNU C Library <libc-alpha at sourceware dot org>
- Cc: nd at arm dot com
- Date: Tue, 05 Sep 2017 18:17:07 +0100
- Subject: Re: [PATCH] Optimized generic expf and exp2f
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On 05/09/17 17:54, Szabolcs Nagy wrote:
> Based on new expf and exp2f code from
> https://github.com/ARM-software/optimized-routines/
>
> with https://sourceware.org/ml/libc-alpha/2017-08/msg01126.html
> expf reciprocal-throughput: 3.3x faster
> expf latency: 1.7x faster
forgot to mention that this is on an aarch64 cpu
on an x86_64 cpu i measure
expf reciprocal-throughput: 1.7x faster than current asm
expf latency: 1.5x faster than current asm