From: Patrick McGehearty <patrick.mcgehearty@oracle.com>
To: libc-alpha@sourceware.org
Subject: Re: [PATCH] v12 Improves __ieee754_exp() performance by 6-11% on aarch64/sparc/x86.
Date: Tue, 20 Mar 2018 22:59:00 -0000 [thread overview]
Message-ID: <d0c812bf-00bd-50ff-e811-de34c7e52dcc@oracle.com> (raw)
In-Reply-To: <10a52463-35af-cc4a-ebcd-ac87ef7f7edf@oracle.com>
Further study confirmed that the existing code is as fast
or faster on several platforms when not following my code's
fast path, but my code runs faster when |x|Â < 1.0397.
That being the case, I will be submitting a patch with
just the fast path added to the existing code. That should
give us the best of both approaches until such time as
Szabolcs Nagy's investigation gives better results.
- patrick
prev parent reply other threads:[~2018-03-20 22:59 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-03-15 4:22 Patrick McGehearty
2018-03-15 12:01 ` Szabolcs Nagy
2018-03-17 0:56 ` Patrick McGehearty
2018-03-20 22:59 ` Patrick McGehearty [this message]
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