[opensuse] Nehalem Support?
Hi Folks, Does anyone have experience with openSuSE running on Intel's new Nehalem processors? HP has a series of desktops running them and I think I'll give one a whirl. I think that RedHat has announced support. Thanks, Lew -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
On Mon, Jul 6, 2009 at 6:35 PM, Lew Wolfgang
Hi Folks,
Does anyone have experience with openSuSE running on Intel's new Nehalem processors? HP has a series of desktops running them and I think I'll give one a whirl. I think that RedHat has announced support.
Thanks, Lew --
Support is in kernel. At work we have Intel Nehalem (Core i7) running Fedora 10. (kernel 2.6.27). openSUSE 11.1 should work too. (but I can't touch this system to test SUSE) -- -Alexey Eromenko "Technologov" -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
Lew Wolfgang wrote:
Hi Folks,
Does anyone have experience with openSuSE running on Intel's new Nehalem processors?
We'v been test driving one box with openSUSE 11.0 on an i7 920 since around 1 June. The only issue I've seen is in the /proc/cpuinfo display : processor : 7 vendor_id : GenuineIntel cpu family : 6 model : 26 model name : Intel(R) Core(TM) i7 CPU 920 @ 2.67GHz stepping : 5 cpu MHz : 1600.000 cache size : 8192 KB physical id : 0 I can't quite figure out why the cpu MHZ is quoted as 1600 when it's otherwise a 2.67GHz cpu. /Per -- Per Jessen, Zürich (16.2°C) -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
We'v been test driving one box with openSUSE 11.0 on an i7 920 since around 1 June. The only issue I've seen is in the /proc/cpuinfo display :
processor : 7 vendor_id : GenuineIntel cpu family : 6 model : 26 model name : Intel(R) Core(TM) i7 CPU 920 @ 2.67GHz stepping : 5 cpu MHz : 1600.000 cache size : 8192 KB physical id : 0
I can't quite figure out why the cpu MHZ is quoted as 1600 when it's otherwise a 2.67GHz cpu.
I think it is power-saving feature. When there are no heavy apps running CPU is working at 1.6 GHz, but when u launch some heavy apps, it goes full speed at 2.66 GHz. -- -Alexey Eromenko "Technologov" -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
Alexey Eremenko wrote:
We'v been test driving one box with openSUSE 11.0 on an i7 920 since around 1 June. The only issue I've seen is in the /proc/cpuinfo display :
processor : 7 vendor_id : GenuineIntel cpu family : 6 model : 26 model name : Intel(R) Core(TM) i7 CPU 920 @ 2.67GHz stepping : 5 cpu MHz : 1600.000 cache size : 8192 KB physical id : 0
I can't quite figure out why the cpu MHZ is quoted as 1600 when it's otherwise a 2.67GHz cpu.
I think it is power-saving feature. When there are no heavy apps running CPU is working at 1.6 GHz, but when u launch some heavy apps, it goes full speed at 2.66 GHz.
That sounds like a reasonable explanation - do you happen to know how to check if the CPU is in power saving mode? This server will likely never be that heavily loaded, but it would be interesting to check. /Per -- Per Jessen, Zürich (17.6°C) -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
On 08.07.2009, Per Jessen wrote:
That sounds like a reasonable explanation - do you happen to know how to check if the CPU is in power saving mode?
You could use "powertop" for this purpose. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
Per Jessen wrote:
Alexey Eremenko wrote:
We'v been test driving one box with openSUSE 11.0 on an i7 920 since around 1 June. The only issue I've seen is in the /proc/cpuinfo display :
processor : 7 vendor_id : GenuineIntel cpu family : 6 model : 26 model name : Intel(R) Core(TM) i7 CPU 920 @ 2.67GHz stepping : 5 cpu MHz : 1600.000 cache size : 8192 KB physical id : 0
I can't quite figure out why the cpu MHZ is quoted as 1600 when it's otherwise a 2.67GHz cpu.
I think it is power-saving feature. When there are no heavy apps running CPU is working at 1.6 GHz, but when u launch some heavy apps, it goes full speed at 2.66 GHz.
That sounds like a reasonable explanation
I have just done a few tests, and that IS indeed the explanation. /Per -- Per Jessen, Zürich (16.8°C) -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
Per Jessen wrote:
Per Jessen wrote:
Alexey Eremenko wrote:
We'v been test driving one box with openSUSE 11.0 on an i7 920 since around 1 June. The only issue I've seen is in the /proc/cpuinfo display :
processor : 7 vendor_id : GenuineIntel cpu family : 6 model : 26 model name : Intel(R) Core(TM) i7 CPU 920 @ 2.67GHz stepping : 5 cpu MHz : 1600.000 cache size : 8192 KB physical id : 0
I can't quite figure out why the cpu MHZ is quoted as 1600 when it's otherwise a 2.67GHz cpu. I think it is power-saving feature. When there are no heavy apps running CPU is working at 1.6 GHz, but when u launch some heavy apps, it goes full speed at 2.66 GHz.
That sounds like a reasonable explanation
I have just done a few tests, and that IS indeed the explanation.
Does "top" show the correct number of multiple CPU's and HyperThreads? As I understand it, the Nahalems bring back Intel's old hyperthreading to give the appearance of multiple CPU's on one die. The one I'll probably try has one chip containing four discrete cpus, each cpu with two threads, giving the appearance of eight cpus. Regards, Lew -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
Lew Wolfgang wrote:
Does "top" show the correct number of multiple CPU's and HyperThreads?
'top' shows 8 CPUs, just like cpuinfo does.
As I understand it, the Nahalems bring back Intel's old hyperthreading to give the appearance of multiple CPU's on one die. The one I'll probably try has one chip containing four discrete cpus, each cpu with two threads, giving the appearance of eight cpus.
That's exactly the kind of CPU I'm testing. /Per -- Per Jessen, Zürich (17.8°C) -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
powersave -c CPUFreq modes: -c, --cpufreq-state-info print out the current cpufreq policy -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
participants (5)
-
Alexey Eremenko -
cagsm -
Heinz Diehl -
Lew Wolfgang -
Per Jessen