* [gentoo-server] HT on P4?
@ 2005-09-23 21:30 A. Khattri
2005-09-23 21:41 ` kashani
0 siblings, 1 reply; 13+ messages in thread
From: A. Khattri @ 2005-09-23 21:30 UTC (permalink / raw
To: gentoo-server
I switched on SMP and HT when building my kernel but I see this among the
boot messages:
CPU: After generic identify, caps: bfebfbff 00000000 00000000 00000000
0000441d 00000000 00000000
CPU: After vendor identify, caps: bfebfbff 00000000 00000000 00000000
0000441d 00000000 00000000
monitor/mwait feature present.
using mwait in idle threads.
CPU: Trace cache: 12K uops, L1 D cache: 16K
CPU: L2 cache: 1024K
CPU: Hyper-Threading is disabled
CPU: After all inits, caps: bfebfbff 00000000 00000000 00000080 0000441d
00000000 00000000
Intel machine check architecture supported.
Intel machine check reporting enabled on CPU#0.
CPU0: Intel P4/Xeon Extended MCE MSRs (12) available
CPU0: Thermal monitoring enabled
Enabling fast FPU save and restore... done.
Enabling unmasked SIMD FPU exception support... done.
Checking 'hlt' instruction... OK.
CPU0: Intel(R) Pentium(R) 4 CPU 2.40GHz stepping 01
Total of 1 processors activated (4718.59 BogoMIPS).
ENABLING IO-APIC IRQs
..TIMER: vector=0x31 pin1=2 pin2=-1
Brought up 1 CPUs
CPU0 attaching sched-domain:
domain 0: span 1
groups: 1
domain 1: span 1
groups: 1
Looks like I dont get hyperthreading enabled????
--
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* Re: [gentoo-server] HT on P4?
2005-09-23 21:30 [gentoo-server] HT on P4? A. Khattri
@ 2005-09-23 21:41 ` kashani
2005-09-23 22:05 ` A. Khattri
0 siblings, 1 reply; 13+ messages in thread
From: kashani @ 2005-09-23 21:41 UTC (permalink / raw
To: gentoo-server
A. Khattri wrote:
> I switched on SMP and HT when building my kernel but I see this among the
> boot messages:
>
> CPU: After generic identify, caps: bfebfbff 00000000 00000000 00000000
> 0000441d 00000000 00000000
> CPU: After vendor identify, caps: bfebfbff 00000000 00000000 00000000
> 0000441d 00000000 00000000
> monitor/mwait feature present.
> using mwait in idle threads.
> CPU: Trace cache: 12K uops, L1 D cache: 16K
> CPU: L2 cache: 1024K
> CPU: Hyper-Threading is disabled
Is it possible it's disabled in the Bios? Some servers shipped that way
when they first came out IIRC.
kashani
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^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [gentoo-server] HT on P4?
2005-09-23 21:41 ` kashani
@ 2005-09-23 22:05 ` A. Khattri
2005-09-23 22:30 ` Joao Patricio
0 siblings, 1 reply; 13+ messages in thread
From: A. Khattri @ 2005-09-23 22:05 UTC (permalink / raw
To: gentoo-server
On Fri, 23 Sep 2005, kashani wrote:
> A. Khattri wrote:
> > I switched on SMP and HT when building my kernel but I see this among the
> > boot messages:
> >
> > CPU: After generic identify, caps: bfebfbff 00000000 00000000 00000000
> > 0000441d 00000000 00000000
> > CPU: After vendor identify, caps: bfebfbff 00000000 00000000 00000000
> > 0000441d 00000000 00000000
> > monitor/mwait feature present.
> > using mwait in idle threads.
> > CPU: Trace cache: 12K uops, L1 D cache: 16K
> > CPU: L2 cache: 1024K
> > CPU: Hyper-Threading is disabled
>
> Is it possible it's disabled in the Bios? Some servers shipped that way
> when they first came out IIRC.
I didn't find any BIOS setting unfortunately...
This is a Supermicro 5013C-T server with a P4 (P4SCE?) board in it.
# cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 15
model : 4
model name : Intel(R) Pentium(R) 4 CPU 2.40GHz
stepping : 1
cpu MHz : 2395.003
cache size : 1024 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 5
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca
cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe pni monitor
ds_cpl cid xtpr
bogomips : 4718.59
--
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^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [gentoo-server] HT on P4?
2005-09-23 22:05 ` A. Khattri
@ 2005-09-23 22:30 ` Joao Patricio
2005-09-25 6:36 ` A. Khattri
0 siblings, 1 reply; 13+ messages in thread
From: Joao Patricio @ 2005-09-23 22:30 UTC (permalink / raw
To: gentoo-server
Did you enable SMP when you compiled your kernel?
Em Sexta, 23 de Setembro de 2005 23:05, o A. Khattri escreveu:
> On Fri, 23 Sep 2005, kashani wrote:
> > A. Khattri wrote:
> > > I switched on SMP and HT when building my kernel but I see this among
> > > the boot messages:
> > >
> > > CPU: After generic identify, caps: bfebfbff 00000000 00000000 00000000
> > > 0000441d 00000000 00000000
> > > CPU: After vendor identify, caps: bfebfbff 00000000 00000000 00000000
> > > 0000441d 00000000 00000000
> > > monitor/mwait feature present.
> > > using mwait in idle threads.
> > > CPU: Trace cache: 12K uops, L1 D cache: 16K
> > > CPU: L2 cache: 1024K
> > > CPU: Hyper-Threading is disabled
> >
> > Is it possible it's disabled in the Bios? Some servers shipped that way
> > when they first came out IIRC.
>
> I didn't find any BIOS setting unfortunately...
>
> This is a Supermicro 5013C-T server with a P4 (P4SCE?) board in it.
>
> # cat /proc/cpuinfo
> processor : 0
> vendor_id : GenuineIntel
> cpu family : 15
> model : 4
> model name : Intel(R) Pentium(R) 4 CPU 2.40GHz
> stepping : 1
> cpu MHz : 2395.003
> cache size : 1024 KB
> fdiv_bug : no
> hlt_bug : no
> f00f_bug : no
> coma_bug : no
> fpu : yes
> fpu_exception : yes
> cpuid level : 5
> wp : yes
> flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca
> cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe pni monitor
> ds_cpl cid xtpr
> bogomips : 4718.59
>
>
> --
--
gentoo-server@gentoo.org mailing list
^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [gentoo-server] HT on P4?
2005-09-23 22:30 ` Joao Patricio
@ 2005-09-25 6:36 ` A. Khattri
2005-09-25 12:06 ` Christian Ehlers
0 siblings, 1 reply; 13+ messages in thread
From: A. Khattri @ 2005-09-25 6:36 UTC (permalink / raw
To: gentoo-server
On Fri, 23 Sep 2005, Joao Patricio wrote:
> Did you enable SMP when you compiled your kernel?
Both SMP and SMT are enabled in this kernel:
# grep SMP /usr/src/linux/.config
# CONFIG_X86_BIGSMP is not set
CONFIG_SMP=y
CONFIG_X86_FIND_SMP_CONFIG=y
CONFIG_X86_SMP=y
# grep SMT /usr/src/linux/.config
CONFIG_SCHED_SMT=y
>
> Em Sexta, 23 de Setembro de 2005 23:05, o A. Khattri escreveu:
> > On Fri, 23 Sep 2005, kashani wrote:
> > > A. Khattri wrote:
> > > > I switched on SMP and HT when building my kernel but I see this among
> > > > the boot messages:
> > > >
> > > > CPU: After generic identify, caps: bfebfbff 00000000 00000000 00000000
> > > > 0000441d 00000000 00000000
> > > > CPU: After vendor identify, caps: bfebfbff 00000000 00000000 00000000
> > > > 0000441d 00000000 00000000
> > > > monitor/mwait feature present.
> > > > using mwait in idle threads.
> > > > CPU: Trace cache: 12K uops, L1 D cache: 16K
> > > > CPU: L2 cache: 1024K
> > > > CPU: Hyper-Threading is disabled
> > >
> > > Is it possible it's disabled in the Bios? Some servers shipped that way
> > > when they first came out IIRC.
> >
> > I didn't find any BIOS setting unfortunately...
> >
> > This is a Supermicro 5013C-T server with a P4 (P4SCE?) board in it.
> >
> > # cat /proc/cpuinfo
> > processor : 0
> > vendor_id : GenuineIntel
> > cpu family : 15
> > model : 4
> > model name : Intel(R) Pentium(R) 4 CPU 2.40GHz
> > stepping : 1
> > cpu MHz : 2395.003
> > cache size : 1024 KB
> > fdiv_bug : no
> > hlt_bug : no
> > f00f_bug : no
> > coma_bug : no
> > fpu : yes
> > fpu_exception : yes
> > cpuid level : 5
> > wp : yes
> > flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca
> > cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe pni monitor
> > ds_cpl cid xtpr
> > bogomips : 4718.59
> >
> >
> > --
>
--
wheel of reincarnation
[coined in a paper by T. H. Myer
and I.E. Sutherland "On the Design of Display Processors", Comm.
ACM, Vol. 11, no. 6, June 1968)] Term used to refer to a well-known
effect whereby function in a computing system family is migrated
out to special-purpose peripheral hardware for speed, then the
peripheral evolves toward more computing power as it does its job,
then somebody notices that it is inefficient to support two
asymmetrical processors in the architecture and folds the function
back into the main CPU, at which point the cycle begins again.
Several iterations of this cycle have been observed in
graphics-processor design, and at least one or two in
communications and floating-point processors. Also known as `the
Wheel of Life', `the Wheel of Samsara', and other variations of
the basic Hindu/Buddhist theological idea. See also blitter,
bit bang.
--
gentoo-server@gentoo.org mailing list
^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [gentoo-server] HT on P4?
2005-09-25 6:36 ` A. Khattri
@ 2005-09-25 12:06 ` Christian Ehlers
2005-09-26 11:13 ` Benjamin Smee (strerror)
2005-09-26 19:14 ` A. Khattri
0 siblings, 2 replies; 13+ messages in thread
From: Christian Ehlers @ 2005-09-25 12:06 UTC (permalink / raw
To: gentoo-server
Hello,
> > > I didn't find any BIOS setting unfortunately...
According to:
http://www.supermicro.com/manuals/motherboard/E7210/MNL-0697.pdf
In chapter 4-13 (page 59) there is a Hyper Threading Bios Option under
Advanced: Processor & Clock options.
Regards,
Christian Ehlers
--
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^ permalink raw reply [flat|nested] 13+ messages in thread
* RE: [gentoo-server] HT on P4?
@ 2005-09-25 13:00 Wilkins, Vern
0 siblings, 0 replies; 13+ messages in thread
From: Wilkins, Vern @ 2005-09-25 13:00 UTC (permalink / raw
To: gentoo-server
[-- Attachment #1: Type: text/plain, Size: 3392 bytes --]
As someone else mentioned, my guess would be it's turned off on the board. If there's no bios setting, how about a jumper on the board? There has to be some way to turn it on/off.
-----Original Message-----
From: A. Khattri [mailto:ajai@bway.net]
Sent: Sun 9/25/2005 1:36 AM
To: gentoo-server@lists.gentoo.org
Cc:
Subject: Re: [gentoo-server] HT on P4?
On Fri, 23 Sep 2005, Joao Patricio wrote:
> Did you enable SMP when you compiled your kernel?
Both SMP and SMT are enabled in this kernel:
# grep SMP /usr/src/linux/.config
# CONFIG_X86_BIGSMP is not set
CONFIG_SMP=y
CONFIG_X86_FIND_SMP_CONFIG=y
CONFIG_X86_SMP=y
# grep SMT /usr/src/linux/.config
CONFIG_SCHED_SMT=y
>
> Em Sexta, 23 de Setembro de 2005 23:05, o A. Khattri escreveu:
> > On Fri, 23 Sep 2005, kashani wrote:
> > > A. Khattri wrote:
> > > > I switched on SMP and HT when building my kernel but I see this among
> > > > the boot messages:
> > > >
> > > > CPU: After generic identify, caps: bfebfbff 00000000 00000000 00000000
> > > > 0000441d 00000000 00000000
> > > > CPU: After vendor identify, caps: bfebfbff 00000000 00000000 00000000
> > > > 0000441d 00000000 00000000
> > > > monitor/mwait feature present.
> > > > using mwait in idle threads.
> > > > CPU: Trace cache: 12K uops, L1 D cache: 16K
> > > > CPU: L2 cache: 1024K
> > > > CPU: Hyper-Threading is disabled
> > >
> > > Is it possible it's disabled in the Bios? Some servers shipped that way
> > > when they first came out IIRC.
> >
> > I didn't find any BIOS setting unfortunately...
> >
> > This is a Supermicro 5013C-T server with a P4 (P4SCE?) board in it.
> >
> > # cat /proc/cpuinfo
> > processor : 0
> > vendor_id : GenuineIntel
> > cpu family : 15
> > model : 4
> > model name : Intel(R) Pentium(R) 4 CPU 2.40GHz
> > stepping : 1
> > cpu MHz : 2395.003
> > cache size : 1024 KB
> > fdiv_bug : no
> > hlt_bug : no
> > f00f_bug : no
> > coma_bug : no
> > fpu : yes
> > fpu_exception : yes
> > cpuid level : 5
> > wp : yes
> > flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca
> > cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe pni monitor
> > ds_cpl cid xtpr
> > bogomips : 4718.59
> >
> >
> > --
>
--
wheel of reincarnation
[coined in a paper by T. H. Myer
and I.E. Sutherland "On the Design of Display Processors", Comm.
ACM, Vol. 11, no. 6, June 1968)] Term used to refer to a well-known
effect whereby function in a computing system family is migrated
out to special-purpose peripheral hardware for speed, then the
peripheral evolves toward more computing power as it does its job,
then somebody notices that it is inefficient to support two
asymmetrical processors in the architecture and folds the function
back into the main CPU, at which point the cycle begins again.
Several iterations of this cycle have been observed in
graphics-processor design, and at least one or two in
communications and floating-point processors. Also known as `the
Wheel of Life', `the Wheel of Samsara', and other variations of
the basic Hindu/Buddhist theological idea. See also blitter,
bit bang.
--
gentoo-server@gentoo.org mailing list
[-- Attachment #2: winmail.dat --]
[-- Type: application/ms-tnef, Size: 4198 bytes --]
^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [gentoo-server] HT on P4?
2005-09-25 12:06 ` Christian Ehlers
@ 2005-09-26 11:13 ` Benjamin Smee (strerror)
2005-09-26 19:14 ` A. Khattri
1 sibling, 0 replies; 13+ messages in thread
From: Benjamin Smee (strerror) @ 2005-09-26 11:13 UTC (permalink / raw
To: gentoo-server; +Cc: Christian Ehlers
lo,
actually i had the same problem until i worked it out.
In the new kernels (2.6.13) you need to turn on acpi in power management for
HT to work.
--
Benjamin Smee (strerror)
netmail/netmon/forensics/crypto
strerror@gentoo.org
--
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^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [gentoo-server] HT on P4?
2005-09-25 12:06 ` Christian Ehlers
2005-09-26 11:13 ` Benjamin Smee (strerror)
@ 2005-09-26 19:14 ` A. Khattri
2005-09-26 19:49 ` Chris Shelton
1 sibling, 1 reply; 13+ messages in thread
From: A. Khattri @ 2005-09-26 19:14 UTC (permalink / raw
To: gentoo-server
On Sun, 25 Sep 2005, Christian Ehlers wrote:
> > > > I didn't find any BIOS setting unfortunately...
>
> According to:
> http://www.supermicro.com/manuals/motherboard/E7210/MNL-0697.pdf
>
> In chapter 4-13 (page 59) there is a Hyper Threading Bios Option under
> Advanced: Processor & Clock options.
That option isn't there on this server's BIOS - so maybe I need to upgrade
the BIOS or the CPU in there isn't HT compatible? - this is a P4
(Prescott) CPU.
--
--
gentoo-server@gentoo.org mailing list
^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [gentoo-server] HT on P4?
2005-09-26 19:14 ` A. Khattri
@ 2005-09-26 19:49 ` Chris Shelton
2005-09-29 17:12 ` A. Khattri
0 siblings, 1 reply; 13+ messages in thread
From: Chris Shelton @ 2005-09-26 19:49 UTC (permalink / raw
To: gentoo-server
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
> That option isn't there on this server's BIOS - so maybe I need to upgrade
> the BIOS or the CPU in there isn't HT compatible? - this is a P4
> (Prescott) CPU.
Not all P4 Prescott CPUs support hyperthreading. A good overview of the
various P4 iterations can be found here:
http://en.wikipedia.org/wiki/Pentium_4#Prescott
chris
- --
Chris Shelton
Indiana University - Financial Management Services
- -
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^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [gentoo-server] HT on P4?
2005-09-26 19:49 ` Chris Shelton
@ 2005-09-29 17:12 ` A. Khattri
2005-09-29 23:01 ` Peter Carlsson
0 siblings, 1 reply; 13+ messages in thread
From: A. Khattri @ 2005-09-29 17:12 UTC (permalink / raw
To: gentoo-server
On Mon, 26 Sep 2005, Chris Shelton wrote:
> Not all P4 Prescott CPUs support hyperthreading.
Yes, it looks like this P4 doesn't have HT after all :-(
--
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^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [gentoo-server] HT on P4?
2005-09-29 17:12 ` A. Khattri
@ 2005-09-29 23:01 ` Peter Carlsson
2005-10-03 18:59 ` A. Khattri
0 siblings, 1 reply; 13+ messages in thread
From: Peter Carlsson @ 2005-09-29 23:01 UTC (permalink / raw
To: gentoo-server
Cant it depend on ACPI? If you turn ACPI off you dont get ht. At least i
got that problem.
// Peter
A. Khattri wrote:
>On Mon, 26 Sep 2005, Chris Shelton wrote:
>
>
>
>>Not all P4 Prescott CPUs support hyperthreading.
>>
>>
>
>Yes, it looks like this P4 doesn't have HT after all :-(
>
>
>
>
--
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^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [gentoo-server] HT on P4?
2005-09-29 23:01 ` Peter Carlsson
@ 2005-10-03 18:59 ` A. Khattri
0 siblings, 0 replies; 13+ messages in thread
From: A. Khattri @ 2005-10-03 18:59 UTC (permalink / raw
To: gentoo-server
On Thu, 29 Sep 2005, Peter Carlsson wrote:
> Cant it depend on ACPI? If you turn ACPI off you dont get ht. At least i
> got that problem.
I had all that turned on.
Anyway, the vendor confirmed that this P4 doesn't have HT.
--
--
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Thread overview: 13+ messages (download: mbox.gz follow: Atom feed
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2005-09-23 21:30 [gentoo-server] HT on P4? A. Khattri
2005-09-23 21:41 ` kashani
2005-09-23 22:05 ` A. Khattri
2005-09-23 22:30 ` Joao Patricio
2005-09-25 6:36 ` A. Khattri
2005-09-25 12:06 ` Christian Ehlers
2005-09-26 11:13 ` Benjamin Smee (strerror)
2005-09-26 19:14 ` A. Khattri
2005-09-26 19:49 ` Chris Shelton
2005-09-29 17:12 ` A. Khattri
2005-09-29 23:01 ` Peter Carlsson
2005-10-03 18:59 ` A. Khattri
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2005-09-25 13:00 Wilkins, Vern
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