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Re: Q: What is default architecture for code produced by native compiler
From: |
Eli Zaretskii |
Subject: |
Re: Q: What is default architecture for code produced by native compiler? |
Date: |
Thu, 26 Aug 2021 09:57:38 +0300 |
> From: Arthur Miller <arthur.miller@live.com>
> Cc: akrl@sdf.org, emacs-devel@gnu.org
> Date: Thu, 26 Aug 2021 01:26:30 +0200
>
> > I'm also curious why you want to mess with that. Do you use the
> > equivalent GCC switches when compiling Emacs? If so, why?
> Yes, I do, I compile Emacs with -O3 -march=native and -mcpu=native
>
> Hopefully gcc will emit some AVX instructions where possible. I haven't
> dissasembled Emacs binary so I don't know how big is difference between
> generic
> and native.
Well, I suggest that you do look into the differences between the
produced code, and try to measure the effect on the speed of Emacs.
Btw, -O3 is not recommended, as it frequently produces a slower Emacs.
- Q: What is default architecture for code produced by native compiler?, Arthur Miller, 2021/08/24
- Re: Q: What is default architecture for code produced by native compiler?, Andrea Corallo, 2021/08/24
- Re: Q: What is default architecture for code produced by native compiler?, Arthur Miller, 2021/08/24
- Re: Q: What is default architecture for code produced by native compiler?, Eli Zaretskii, 2021/08/25
- Re: Q: What is default architecture for code produced by native compiler?, Arthur Miller, 2021/08/25
- Re: Q: What is default architecture for code produced by native compiler?,
Eli Zaretskii <=
- Re: Q: What is default architecture for code produced by native compiler?, martin rudalics, 2021/08/26
- Re: Q: What is default architecture for code produced by native compiler?, Eli Zaretskii, 2021/08/26
- Re: Q: What is default architecture for code produced by native compiler?, Arthur Miller, 2021/08/26
- Re: Q: What is default architecture for code produced by native compiler?, Eli Zaretskii, 2021/08/26
- Re: Q: What is default architecture for code produced by native compiler?, Arthur Miller, 2021/08/26
- Re: Q: What is default architecture for code produced by native compiler?, Arthur Miller, 2021/08/26
- Re: Q: What is default architecture for code produced by native compiler?, Arthur Miller, 2021/08/26
- Re: Q: What is default architecture for code produced by native compiler?, Eli Zaretskii, 2021/08/26
- Re: Q: What is default architecture for code produced by native compiler?, Arthur Miller, 2021/08/26
Re: Q: What is default architecture for code produced by native compiler?, Arthur Miller, 2021/08/24