| From: | Bruce Momjian <bruce(at)momjian(dot)us> |
|---|---|
| To: | Jim Nasby <Jim(dot)Nasby(at)BlueTreble(dot)com> |
| Cc: | Tomas Vondra <tomas(dot)vondra(at)2ndquadrant(dot)com>, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: Checksums by default? |
| Date: | 2017-02-24 20:02:04 |
| Message-ID: | 20170224200204.GG23209@momjian.us |
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| Lists: | pgsql-hackers |
On Fri, Feb 24, 2017 at 01:49:07PM -0600, Jim Nasby wrote:
> On 2/24/17 12:30 PM, Tomas Vondra wrote:
> >In any case, we can't just build x86-64 packages with compile-time
> >SSE4.1 checks.
>
> Dumb question... since we're already discussing llvm for the executor, would
> that potentially be an option here? AIUI that also opens the possibility of
> using the GPU as well.
Uh, as far as I know, the best you are going to get from llvm is
standard assembly, while the SSE4.1 instructions use special assembly
instructions, so they would be faster, and in a way they are a GPU built
into CPUs.
--
Bruce Momjian <bruce(at)momjian(dot)us> http://momjian.us
EnterpriseDB http://enterprisedb.com
+ As you are, so once was I. As I am, so you will be. +
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