On Fri, 18 May 2007, Chris Snook wrote:
[email protected] wrote:
On Fri, 18 May 2007, Chris Snook wrote:
> [email protected] wrote:
> > ---------------------------------------------------------------------------
> >
> >
> > I have Pentium D CPU, which many Windows utilities like cpuz, wcpuid,
> > everest identify as D 930 (Dual Core, 3GHz). From Intel site I find
> > out
> > that it has no HT feature, nor Windows XP identify it as HT.
> >
> > Why do I have "ht" flag in cpuinfo?
> > -----------------------------------
>
> The "ht" flag merely means "I know how to report hyperthreaded logical
> processors if I have them." My Woodcrest Xeon 5110 and my Athlon64 X2
> both have the "ht" flag, and correctly report the zero hyperthreaded
> logical processors they each have.
>
> -- Chris
>
>
Thanks, Chris.
Am I right that is chipset on mainboard, who is saying - "I know....", not
CPU itself? Is it better to switch off HT support in BIOS?
Is it possible to generate CPU name as: "Pentium D 930" in /proc/cpuinfo?
On the other server I have some 2GHz HT Xeons which can't be identified on
Intel site because of strange naming pattern.
I tried to find any utility for Linux to solve this, but it looks like
everybody are using /pros/cpuinfo, which is not enough :)
Regards, Eugene.
While the BIOS can disable HT, the ability to *report* HT or the lack thereof
is within the CPU itself. I doubt my socket AM2 board has the faintest clue
what HT is.
As for human-readable names, the model name in /proc/cpuinfo comes from the
processor name string, and includes however much or little information the
vendor thinks the lay user wants to know. If you want more detail, you can
always interpret the model, stepping, and other related fields to determine
the model number.
If you don't want to manually look up model info on a CPU version table,
x86info and dmidecode will give you more information.
-- Chris
As I already told, there is no stepping 4 for Xeons on Intel site! So
/proc/cpuinfo, dmidecode, x86info are all wrong.
Moreover, x86info is too old and can't work with /sys fs.
Also Linux is poor on giving FSB and Memory frequency, which I need to be
sure that memory timing is correct (SPD gives slower parameters then are
on SDRAM labels :( ).
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
