Re: Identifying CPU and current OS
- To: debian-user@lists.debian.org
- Subject: Re: Identifying CPU and current OS
- From: Jeffrey Walton <noloader@gmail.com>
- Date: Tue, 30 Sep 2025 19:59:10 -0400
- Message-id: <[🔎] CAH8yC8mcrZ9QZG=sF=JtOFfz7qnEogRw17H8kwx+v__xNk5_aw@mail.gmail.com>
- Reply-to: noloader@gmail.com
- In-reply-to: <5ac8f40a-9e2a-11f0-8000-00163eeb5320@msgid.mathom.us>
- References: <98mnql-2q3.ln1@anthive.com> <0ec7e8e5-a51a-b05c-1655-d9c318a2b1f9@access.net> <f63ea2a4-9d1c-11f0-8000-00163eeb5320@msgid.mathom.us> <slrn10dlc3t.1df.curtyshoo@einstein.home.arpa> <f1823e30-9d4c-11f0-8000-00163eeb5320@msgid.mathom.us> <slrn10dnua7.1bu.curtyshoo@einstein.home.arpa> <df5921bc-9e03-11f0-8000-00163eeb5320@msgid.mathom.us> <slrn10do04o.1bu.curtyshoo@einstein.home.arpa> <f7a3b102-9e07-11f0-8000-00163eeb5320@msgid.mathom.us> <CAH8yC8kFePV5Lz5hwjaqtjsseTQ9mPVQa57k17THQOvpfKvGjw@mail.gmail.com> <5ac8f40a-9e2a-11f0-8000-00163eeb5320@msgid.mathom.us>
On Tue, Sep 30, 2025 at 4:47 PM Michael Stone <mstone@debian.org> wrote:
>
> On Tue, Sep 30, 2025 at 01:25:06PM -0400, Jeffrey Walton wrote:
> >The 80-bit, 128-bit, 256-bit, 512-bit and friends are the size of
> >registers in coprocessors, like the x87 math coprocessor, the SSE
> >coprocessor, the AVX coprocessor, etc.
>
> None of those are coprocessors on amd64; x86 hasn't used math
> coprocessors since the late 80s. So this is a matter of choosing to
> ignore parts of the CPU because they don't fit the model. :)
Agreed. They are internal data paths on the CPU die nowadays.
Jeff
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