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Re: Linux "native" Virtualization: ARM64 vs x86_64

From The Natural Philosopher <tnp@invalid.invalid>
Newsgroups comp.os.linux.misc
Subject Re: Linux "native" Virtualization: ARM64 vs x86_64
Date 2021-11-04 11:03 +0000
Organization A little, after lunch
Message-ID <sm0elt$8se$1@dont-email.me> (permalink)
References (1 earlier) <sm07dds1fs8.fsf@lakka.kapsi.fi> <20211101231452.2e126fb8@nx-74205> <sm0zgqly6y3.fsf@lakka.kapsi.fi> <sltoml$dp1$1@dont-email.me> <6182e42b$0$4993$426a74cc@news.free.fr>

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On 03/11/2021 19:34, Pascal Hambourg wrote:
> Le 03/11/2021 à 11:36, The Natural Philosopher a écrit :
>> I would expect an X86 emulating ARM to be as crap as an ARM emulating 
>> X86...
> 
> I may be wrong, but I would expect RISC emulating CISC to perform better 
> than CISC emulating RISC.

That is in fact and interesting question, since CISC  itself is RISC 
emulating CISC in microcode, half the time.

The point being whether or not the microcode inside the processor can 
execute faster than the RISC instruction in the main bus or cache of a 
RISC chip.

To date Intel beats an ARM on pure speed.  Just not on power consumption 
IIRC.

I cant see either of them performing satisfactorily in a mode they were 
not designed for however, though my money might be on intel emulating 
ARM, only because they are more powerful to start with.

-- 
"When a true genius appears in the world, you may know him by this sign, 
that the dunces are all in confederacy against him."

Jonathan Swift.

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Linux "native" Virtualization: ARM64 vs x86_64 Robert Heller <heller@deepsoft.com> - 2021-10-30 23:21 -0500
  Re: Linux "native" Virtualization: ARM64 vs x86_64 Jason Evans <jsevans@mailfence.com> - 2021-11-01 06:56 +0000
  Re: Linux "native" Virtualization: ARM64 vs x86_64 Anssi Saari <as@sci.fi> - 2021-11-01 09:44 +0200
    Re: Linux "native" Virtualization: ARM64 vs x86_64 Aragorn <thorongil@telenet.be> - 2021-11-01 23:14 +0100
      Re: Linux "native" Virtualization: ARM64 vs x86_64 Anssi Saari <as@sci.fi> - 2021-11-03 10:33 +0200
        Re: Linux "native" Virtualization: ARM64 vs x86_64 The Natural Philosopher <tnp@invalid.invalid> - 2021-11-03 10:36 +0000
          Re: Linux "native" Virtualization: ARM64 vs x86_64 Pascal Hambourg <pascal@plouf.fr.eu.org> - 2021-11-03 20:34 +0100
            Re: Linux "native" Virtualization: ARM64 vs x86_64 Grant Taylor <gtaylor@tnetconsulting.net> - 2021-11-03 14:14 -0600
              Re: Linux "native" Virtualization: ARM64 vs x86_64 Robert Riches <spamtrap42@jacob21819.net> - 2021-11-04 03:21 +0000
              Re: Linux "native" Virtualization: ARM64 vs x86_64 Rich <rich@example.invalid> - 2021-11-04 03:28 +0000
            Re: Linux "native" Virtualization: ARM64 vs x86_64 The Natural Philosopher <tnp@invalid.invalid> - 2021-11-04 11:03 +0000
              Re: Linux "native" Virtualization: ARM64 vs x86_64 Robert Heller <heller@deepsoft.com> - 2021-11-04 07:07 -0500
                Re: Linux "native" Virtualization: ARM64 vs x86_64 The Natural Philosopher <tnp@invalid.invalid> - 2021-11-04 15:54 +0000
                Re: Linux "native" Virtualization: ARM64 vs x86_64 Robert Heller <heller@deepsoft.com> - 2021-11-04 13:41 -0500
                Re: Linux "native" Virtualization: ARM64 vs x86_64 John-Paul Stewart <jpstewart@personalprojects.net> - 2021-11-04 14:54 -0400
                Re: Linux "native" Virtualization: ARM64 vs x86_64 Pascal Hambourg <pascal@plouf.fr.eu.org> - 2021-11-04 20:00 +0100
                Re: Linux "native" Virtualization: ARM64 vs x86_64 Pascal Hambourg <pascal@plouf.fr.eu.org> - 2021-11-04 20:04 +0100
                Re: Linux "native" Virtualization: ARM64 vs x86_64 John-Paul Stewart <jpstewart@personalprojects.net> - 2021-11-04 16:36 -0400
                Re: Linux "native" Virtualization: ARM64 vs x86_64 The Natural Philosopher <tnp@invalid.invalid> - 2021-11-04 19:25 +0000
                Re: Linux "native" Virtualization: ARM64 vs x86_64 The Natural Philosopher <tnp@invalid.invalid> - 2021-11-04 19:33 +0000
                Re: Linux "native" Virtualization: ARM64 vs x86_64 Anssi Saari <as@sci.fi> - 2021-11-05 14:09 +0200
                Re: Linux "native" Virtualization: ARM64 vs x86_64 The Natural Philosopher <tnp@invalid.invalid> - 2021-11-05 14:15 +0000
                Re: Linux "native" Virtualization: ARM64 vs x86_64 Robert Heller <heller@deepsoft.com> - 2021-11-05 13:01 -0500
                Re: Linux "native" Virtualization: ARM64 vs x86_64 Robert Heller <heller@deepsoft.com> - 2021-11-05 13:01 -0500
                Re: Linux "native" Virtualization: ARM64 vs x86_64 Pascal Hambourg <pascal@plouf.fr.eu.org> - 2021-11-04 19:52 +0100
                Re: Linux "native" Virtualization: ARM64 vs x86_64 Robert Heller <heller@deepsoft.com> - 2021-11-04 18:24 -0500
                Re: Linux "native" Virtualization: ARM64 vs x86_64 Pascal Hambourg <pascal@plouf.fr.eu.org> - 2021-11-05 08:02 +0100
                Re: Linux "native" Virtualization: ARM64 vs x86_64 The Natural Philosopher <tnp@invalid.invalid> - 2021-11-05 09:09 +0000

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