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* [9fans] i3 machine
@ 2021-03-30  6:43 kokamoto
  2021-04-01  0:21 ` kokamoto
  2021-04-01  0:28 ` ori
  0 siblings, 2 replies; 4+ messages in thread
From: kokamoto @ 2021-03-30  6:43 UTC (permalink / raw)
  To: 9fans

My i3-3240 (3.4GHz) machine shows
3394 MHz GenuieneIntel Core i7 (cpuid: AX 0x306A9 DX 0xBFFBFBFF)
at bootinng.  Frequency is right however Model name is not.

AX value means Family=6, Model=3A which is listed as "Core i7" in
x86intel[] table in /sys/src/9/pc/devarch.c, like:
x86intel[]=
{
----
{6, 0x3A, 16, "Core i7"},
---
}

Is this table correct?

Kenji


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* Re: [9fans] i3 machine
  2021-03-30  6:43 [9fans] i3 machine kokamoto
@ 2021-04-01  0:21 ` kokamoto
  2021-04-01  0:28 ` ori
  1 sibling, 0 replies; 4+ messages in thread
From: kokamoto @ 2021-04-01  0:21 UTC (permalink / raw)
  To: 9fans

Family=6, Model=3A applies to all of the 3rd Generation Core i CPUs.
I examined those among the machines I have, and got the results as:

x86intel[] table in /sys/src/9/pc/devarch.c, like:
x86intel[]=
{
----
/*      {6, 0x3A, 16, "Core i7"},       */
        { 6,    0x3A,   16,     "3rd Gen Core i-3/5/7", },
        { 6,    0x3C,   16,     "4th Gen Core i-5", },
        { 6,    0x5E,   16,     "6th Gen Core i-5"},
---
}
Above lines works fine on my machines.

Hoever, we have a line of
        { 6,    -1,     16,     "P6", },
below those lines, so we may not need the above 4 lines.

Kenji

> My i3-3240 (3.4GHz) machine shows
> 3394 MHz GenuieneIntel Core i7 (cpuid: AX 0x306A9 DX 0xBFFBFBFF)
> at bootinng.  Frequency is right however Model name is not.
> 
> AX value means Family=6, Model=3A which is listed as "Core i7" in
> x86intel[] table in /sys/src/9/pc/devarch.c, like:
> x86intel[]=
> {
> ----
> {6, 0x3A, 16, "Core i7"},
> ---
> }
> 
> Is this table correct?
> 
> Kenji

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* Re: [9fans] i3 machine
  2021-03-30  6:43 [9fans] i3 machine kokamoto
  2021-04-01  0:21 ` kokamoto
@ 2021-04-01  0:28 ` ori
  2021-04-01  7:47   ` hiro
  1 sibling, 1 reply; 4+ messages in thread
From: ori @ 2021-04-01  0:28 UTC (permalink / raw)
  To: 9fans

> Is this table correct?

cat '#P/archctl'
cpu Core 2/Xeon 2503 pge

It's actually a Kaby Lake, as far as I can tell.

That table is definitely not correct.

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* Re: [9fans] i3 machine
  2021-04-01  0:28 ` ori
@ 2021-04-01  7:47   ` hiro
  0 siblings, 0 replies; 4+ messages in thread
From: hiro @ 2021-04-01  7:47 UTC (permalink / raw)
  To: 9fans

it's a good reminder that it's better to look at generations, as we
have so many of them now.
the performance difference is much bigger between 1g and 11g than i3 and i7.

On 4/1/21, ori@eigenstate.org <ori@eigenstate.org> wrote:
>> Is this table correct?
> 
> cat '#P/archctl'
> cpu Core 2/Xeon 2503 pge
> 
> It's actually a Kaby Lake, as far as I can tell.
> 
> That table is definitely not correct.

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end of thread, other threads:[~2021-04-01  7:48 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-03-30  6:43 [9fans] i3 machine kokamoto
2021-04-01  0:21 ` kokamoto
2021-04-01  0:28 ` ori
2021-04-01  7:47   ` hiro

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