Re: [CentOS] CentOS 6 / Intel CPU support

2017-05-12 Thread John Hodrien 

On Thu, 11 May 2017, Darr247 wrote:


If you disable Intel Speedstep in the BIOS it should lock the CPU to its
fastest speed, but you lose power saving during idle.


Could you possibly also find that you're more restricted in your use of
TurboBoost in that state (if indeed it works properly without speedstep), and
so find it runs slower for some workloads?

jh
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Re: [CentOS] CentOS 6 / Intel CPU support

2017-05-11 Thread Darr247 
> Here's mine.  Interesting differences:

If you disable Intel Speedstep in the BIOS it should lock the CPU to its
fastest speed, but you lose power saving during idle.

On Thu, May 11, 2017 at 3:48 PM, ken  wrote:

> On 05/11/2017 12:45 PM, Leon Fauster wrote:
>
>> Am 11.05.2017 um 16:29 schrieb Leon Fauster :
>>>
>>> Am 11.05.2017 um 14:48 schrieb Leon Fauster :

 https://access.redhat.com/support/policy/intel

 shows mainly Xeon CPUs. What about

 Intel Core i7-6700 Quad-Core Skylake

 has the current EL6 variant support for it?

 Any experience? Feedback would be greatly appreciated.

>>>
>>> I found this
>>>
>>> linux-2.6.32-696.1.1.el6/arch/x86/kernel/setup.c
>>>
>>> 796 if ((boot_cpu_data.x86_vendor == X86_VENDOR_INTEL) &&
>>> 797 ((boot_cpu_data.x86 == 6))) {
>>> 798 switch (boot_cpu_data.x86_model) {
>>> 799 case 94: /* Skylake-S */
>>> 800 case 86: /* Broadwell-DE SoC */
>>> 801 case 85: /* Purley */
>>> 802 case 79: /* Broadwell-EP and EX */
>>> 803 case 78: /* Skylake-Y */
>>> 804 case 77: /* Atom Avoton */
>>> 805 case 71: /* Broadwell-H */
>>> 806 case 70: /* Crystal Well */
>>> 807 break;
>>> 808 default:
>>> 809 if (boot_cpu_data.x86_model > 63) {
>>> 810 printk(KERN_CRIT
>>> 811"Detected CPU family %d model %d\n",
>>> 812boot_cpu_data.x86,
>>> 813boot_cpu_data.x86_model);
>>> 814 mark_hardware_unsupported("Intel CPU model");
>>> 815 }
>>> 816 break;
>>> 817 }
>>> 818 }
>>>
>>> not sure if "case 94: /* Skylake-S */" means support for Intel Core
>>> i7-6700 Quad-Core Skylake ...
>>>
>>
>> for the record:
>>
>> model 94 seems to be supported since EL6.7.
>>
>> A quick install could be booted without issues.
>>
>>
>> # cat /proc/cpuinfo | head -26 ; uname -a
>> processor   : 0
>> vendor_id   : GenuineIntel
>> cpu family  : 6
>> model   : 94
>> model name  : Intel(R) Core(TM) i7-6700 CPU @ 3.40GHz
>> stepping: 3
>> microcode   : 85
>> cpu MHz : 3408.025
>> cache size  : 8192 KB
>> physical id : 0
>> siblings: 8
>> core id : 0
>> cpu cores   : 4
>> apicid  : 0
>> initial apicid  : 0
>> fpu : yes
>> fpu_exception   : yes
>> cpuid level : 22
>> 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 syscall
>> nx pdpe1gb rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology
>> nonstop_tsc aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2
>> ssse3 fma cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic movbe popcnt
>> tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm 3dnowprefetch ida
>> arat epb xsaveopt pln pts dtherm hwp hwp_noitfy hwp_act_window hwp_epp
>> tpr_shadow vnmi flexpriority ept vpid fsgsbase bmi1 hle avx2 smep bmi2 erms
>> invpcid rtm rdseed adx
>> bogomips: 6816.05
>> clflush size: 64
>> cache_alignment : 64
>> address sizes   : 39 bits physical, 48 bits virtual
>> power management:
>>
>> Linux srv-s01.ccds.de 2.6.32-696.1.1.el6.x86_64 #1 SMP Tue Apr 11
>> 17:13:24 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
>>
>> --
>> LF
>>
>
> Here's mine.  Interesting differences:
>
> # cat /proc/cpuinfo | head -26; uname -a
> processor: 0
> vendor_id: GenuineIntel
> cpu family: 6
> model: 94
> model name: Intel(R) Core(TM) i7-6700HQ CPU @ 2.60GHz
> stepping: 3
> microcode: 0x9e
> cpu MHz: 899.945
> cache size: 6144 KB
> physical id: 0
> siblings: 8
> core id: 0
> cpu cores: 4
> apicid: 0
> initial apicid: 0
> fpu: yes
> fpu_exception: yes
> cpuid level: 22
> 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 syscall nx
> pdpe1gb rdtscp lm constant_tsc art arch_perfmon pebs bts rep_good nopl
> xtopology nonstop_tsc aperfmperf eagerfpu pni pclmulqdq dtes64 monitor
> ds_cpl vmx est tm2 ssse3 fma cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic movbe
> popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm
> 3dnowprefetch ida arat epb pln pts dtherm hwp hwp_noitfy hwp_act_window
> hwp_epp intel_pt tpr_shadow vnmi flexpriority ept vpid fsgsbase tsc_adjust
> bmi1 hle avx2 smep bmi2 erms invpcid rtm mpx rdseed adx smap clflushopt
> xsaveopt xsavec xgetbv1
> bogomips: 5184.00
> clflush size: 64
> cache_alignment: 64
> address sizes: 39 bits physical, 48 bits virtual
> power management:
>
> Linux null.example.com 3.10.0-514.16.1.el7.x86_64 #1 SMP Wed Apr 12
> 15:04:24 UTC 2017 x86_64

Re: [CentOS] CentOS 6 / Intel CPU support

2017-05-11 Thread ken 

On 05/11/2017 12:45 PM, Leon Fauster wrote:

Am 11.05.2017 um 16:29 schrieb Leon Fauster :


Am 11.05.2017 um 14:48 schrieb Leon Fauster :

https://access.redhat.com/support/policy/intel

shows mainly Xeon CPUs. What about

Intel Core i7-6700 Quad-Core Skylake

has the current EL6 variant support for it?

Any experience? Feedback would be greatly appreciated.


I found this

linux-2.6.32-696.1.1.el6/arch/x86/kernel/setup.c

796 if ((boot_cpu_data.x86_vendor == X86_VENDOR_INTEL) &&
797 ((boot_cpu_data.x86 == 6))) {
798 switch (boot_cpu_data.x86_model) {
799 case 94: /* Skylake-S */
800 case 86: /* Broadwell-DE SoC */
801 case 85: /* Purley */
802 case 79: /* Broadwell-EP and EX */
803 case 78: /* Skylake-Y */
804 case 77: /* Atom Avoton */
805 case 71: /* Broadwell-H */
806 case 70: /* Crystal Well */
807 break;
808 default:
809 if (boot_cpu_data.x86_model > 63) {
810 printk(KERN_CRIT
811"Detected CPU family %d model %d\n",
812boot_cpu_data.x86,
813boot_cpu_data.x86_model);
814 mark_hardware_unsupported("Intel CPU model");
815 }
816 break;
817 }
818 }

not sure if "case 94: /* Skylake-S */" means support for Intel Core i7-6700 
Quad-Core Skylake ...


for the record:

model 94 seems to be supported since EL6.7.

A quick install could be booted without issues.


# cat /proc/cpuinfo | head -26 ; uname -a
processor   : 0
vendor_id   : GenuineIntel
cpu family  : 6
model   : 94
model name  : Intel(R) Core(TM) i7-6700 CPU @ 3.40GHz
stepping: 3
microcode   : 85
cpu MHz : 3408.025
cache size  : 8192 KB
physical id : 0
siblings: 8
core id : 0
cpu cores   : 4
apicid  : 0
initial apicid  : 0
fpu : yes
fpu_exception   : yes
cpuid level : 22
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 syscall nx pdpe1gb 
rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc 
aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 fma cx16 
xtpr pdcm pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave 
avx f16c rdrand lahf_lm abm 3dnowprefetch ida arat epb xsaveopt pln pts dtherm 
hwp hwp_noitfy hwp_act_window hwp_epp tpr_shadow vnmi flexpriority ept vpid 
fsgsbase bmi1 hle avx2 smep bmi2 erms invpcid rtm rdseed adx
bogomips: 6816.05
clflush size: 64
cache_alignment : 64
address sizes   : 39 bits physical, 48 bits virtual
power management:

Linux srv-s01.ccds.de 2.6.32-696.1.1.el6.x86_64 #1 SMP Tue Apr 11 17:13:24 UTC 
2017 x86_64 x86_64 x86_64 GNU/Linux

--
LF


Here's mine.  Interesting differences:

# cat /proc/cpuinfo | head -26; uname -a
processor: 0
vendor_id: GenuineIntel
cpu family: 6
model: 94
model name: Intel(R) Core(TM) i7-6700HQ CPU @ 2.60GHz
stepping: 3
microcode: 0x9e
cpu MHz: 899.945
cache size: 6144 KB
physical id: 0
siblings: 8
core id: 0
cpu cores: 4
apicid: 0
initial apicid: 0
fpu: yes
fpu_exception: yes
cpuid level: 22
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 syscall 
nx pdpe1gb rdtscp lm constant_tsc art arch_perfmon pebs bts rep_good 
nopl xtopology nonstop_tsc aperfmperf eagerfpu pni pclmulqdq dtes64 
monitor ds_cpl vmx est tm2 ssse3 fma cx16 xtpr pdcm pcid sse4_1 sse4_2 
x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm 
abm 3dnowprefetch ida arat epb pln pts dtherm hwp hwp_noitfy 
hwp_act_window hwp_epp intel_pt tpr_shadow vnmi flexpriority ept vpid 
fsgsbase tsc_adjust bmi1 hle avx2 smep bmi2 erms invpcid rtm mpx rdseed 
adx smap clflushopt xsaveopt xsavec xgetbv1

bogomips: 5184.00
clflush size: 64
cache_alignment: 64
address sizes: 39 bits physical, 48 bits virtual
power management:

Linux null.example.com 3.10.0-514.16.1.el7.x86_64 #1 SMP Wed Apr 12 
15:04:24 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux


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Re: [CentOS] CentOS 6 / Intel CPU support

2017-05-11 Thread Leon Fauster 
> Am 11.05.2017 um 16:29 schrieb Leon Fauster :
> 
>> Am 11.05.2017 um 14:48 schrieb Leon Fauster :
>> 
>> https://access.redhat.com/support/policy/intel
>> 
>> shows mainly Xeon CPUs. What about
>> 
>> Intel Core i7-6700 Quad-Core Skylake
>> 
>> has the current EL6 variant support for it?
>> 
>> Any experience? Feedback would be greatly appreciated.
> 
> 
> I found this
> 
> linux-2.6.32-696.1.1.el6/arch/x86/kernel/setup.c
> 
> 796 if ((boot_cpu_data.x86_vendor == X86_VENDOR_INTEL) &&
> 797 ((boot_cpu_data.x86 == 6))) {
> 798 switch (boot_cpu_data.x86_model) {
> 799 case 94: /* Skylake-S */
> 800 case 86: /* Broadwell-DE SoC */
> 801 case 85: /* Purley */
> 802 case 79: /* Broadwell-EP and EX */
> 803 case 78: /* Skylake-Y */
> 804 case 77: /* Atom Avoton */
> 805 case 71: /* Broadwell-H */
> 806 case 70: /* Crystal Well */
> 807 break;
> 808 default:
> 809 if (boot_cpu_data.x86_model > 63) {
> 810 printk(KERN_CRIT
> 811"Detected CPU family %d model %d\n",
> 812boot_cpu_data.x86,
> 813boot_cpu_data.x86_model);
> 814 mark_hardware_unsupported("Intel CPU model");
> 815 }
> 816 break;
> 817 }
> 818 }
> 
> not sure if "case 94: /* Skylake-S */" means support for Intel Core i7-6700 
> Quad-Core Skylake ...


for the record:

model 94 seems to be supported since EL6.7. 

A quick install could be booted without issues.


# cat /proc/cpuinfo | head -26 ; uname -a
processor   : 0
vendor_id   : GenuineIntel
cpu family  : 6
model   : 94
model name  : Intel(R) Core(TM) i7-6700 CPU @ 3.40GHz
stepping: 3
microcode   : 85
cpu MHz : 3408.025
cache size  : 8192 KB
physical id : 0
siblings: 8
core id : 0
cpu cores   : 4
apicid  : 0
initial apicid  : 0
fpu : yes
fpu_exception   : yes
cpuid level : 22
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 syscall nx pdpe1gb 
rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc 
aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 fma cx16 
xtpr pdcm pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave 
avx f16c rdrand lahf_lm abm 3dnowprefetch ida arat epb xsaveopt pln pts dtherm 
hwp hwp_noitfy hwp_act_window hwp_epp tpr_shadow vnmi flexpriority ept vpid 
fsgsbase bmi1 hle avx2 smep bmi2 erms invpcid rtm rdseed adx
bogomips: 6816.05
clflush size: 64
cache_alignment : 64
address sizes   : 39 bits physical, 48 bits virtual
power management:

Linux srv-s01.ccds.de 2.6.32-696.1.1.el6.x86_64 #1 SMP Tue Apr 11 17:13:24 UTC 
2017 x86_64 x86_64 x86_64 GNU/Linux

--
LF

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Re: [CentOS] CentOS 6 / Intel CPU support

2017-05-11 Thread Leon Fauster 
> Am 11.05.2017 um 14:48 schrieb Leon Fauster :
> 
> https://access.redhat.com/support/policy/intel
> 
> shows mainly Xeon CPUs. What about
> 
> Intel Core i7-6700 Quad-Core Skylake
> 
> has the current EL6 variant support for it?
> 
> Any experience? Feedback would be greatly appreciated.


I found this

linux-2.6.32-696.1.1.el6/arch/x86/kernel/setup.c

 796 if ((boot_cpu_data.x86_vendor == X86_VENDOR_INTEL) &&
 797 ((boot_cpu_data.x86 == 6))) {
 798 switch (boot_cpu_data.x86_model) {
 799 case 94: /* Skylake-S */
 800 case 86: /* Broadwell-DE SoC */
 801 case 85: /* Purley */
 802 case 79: /* Broadwell-EP and EX */
 803 case 78: /* Skylake-Y */
 804 case 77: /* Atom Avoton */
 805 case 71: /* Broadwell-H */
 806 case 70: /* Crystal Well */
 807 break;
 808 default:
 809 if (boot_cpu_data.x86_model > 63) {
 810 printk(KERN_CRIT
 811"Detected CPU family %d model %d\n",
 812boot_cpu_data.x86,
 813boot_cpu_data.x86_model);
 814 mark_hardware_unsupported("Intel CPU model");
 815 }
 816 break;
 817 }
 818 }

not sure if "case 94: /* Skylake-S */" means support for Intel Core i7-6700 
Quad-Core Skylake ...

--
LF




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[CentOS] CentOS 6 / Intel CPU support

2017-05-11 Thread Leon Fauster 
https://access.redhat.com/support/policy/intel

shows mainly Xeon CPUs. What about

Intel Core i7-6700 Quad-Core Skylake

has the current EL6 variant support for it?

Any experience? Feedback would be greatly appreciated.

Thanks,
LF



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