Re: schedulers and topology exposing questions

[Elena Ufimtseva <elena.ufimtseva@oracle.com>]

[-- Attachment #1: Type: text/plain, Size: 1478 bytes --]

On Thu, Jan 28, 2016 at 09:55:45AM +0000, Dario Faggioli wrote:
> On Wed, 2016-01-27 at 15:53 +0000, George Dunlap wrote:
> > On 27/01/16 15:27, Konrad Rzeszutek Wilk wrote:
> > > 
> > > So Elena started looking at the CPU bound and seeing how Xen
> > > behaves then
> > > and if we can improve the floating situation as she saw some
> > > abnormal
> > > behavious.
> >
> > OK -- if the focus was on the two cases where the Xen credit1
> > scheduler
> > (apparently) co-located two cpu-burning vcpus on sibling threads,
> > then
> > yeah, that's behavior we should probably try to get to the bottom of.
> >
> Well, let's see the trace. 

Hey Dario

Please disregard the previous email with topology information.
It was incorrect and I am attaching the topology that is actually result
of Joao smt patches application.


Elena
>
> In any case, I'm up to trying hooking the SMT load balancer in
> runq_tickle (which would mean doing it upon every vcpus wakeup).
>
> My gut feeling is that the overhead my outwieght the benefit, and that
> it will actually reveal useful only in a minority of the
> cases/workloads, but it's maybe worth a try.

>
> Regards,
> Dario
> --
> <<This happens because I choose it to happen!>> (Raistlin Majere)
> -----------------------------------------------------------------
> Dario Faggioli, Ph.D, http://about.me/dario.faggioli
> Senior Software Engineer, Citrix Systems R&D Ltd., Cambridge (UK)
>



[-- Attachment #2: cpuinfo --]
[-- Type: text/plain, Size: 12658 bytes --]

processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 62
model name	: Genuine Intel(R) CPU  @ 2.80GHz
stepping	: 2
microcode	: 0x209
cpu MHz		: 2793.360
cache size	: 25600 KB
physical id	: 0
siblings	: 16
core id		: 0
cpu cores	: 8
apicid		: 0
initial apicid	: 0
fpu		: yes
fpu_exception	: yes
cpuid level	: 13
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx pdpe1gb rdtscp lm constant_tsc rep_good nopl eagerfpu pni pclmulqdq ssse3 cx16 pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm fsgsbase smep erms xsaveopt
bugs		:
bogomips	: 5586.72
clflush size	: 64
cache_alignment	: 64
address sizes	: 46 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 62
model name	: Genuine Intel(R) CPU  @ 2.80GHz
stepping	: 2
microcode	: 0x209
cpu MHz		: 2793.360
cache size	: 25600 KB
physical id	: 0
siblings	: 16
core id		: 0
cpu cores	: 8
apicid		: 1
initial apicid	: 1
fpu		: yes
fpu_exception	: yes
cpuid level	: 13
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx pdpe1gb rdtscp lm constant_tsc rep_good nopl eagerfpu pni pclmulqdq ssse3 cx16 pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm fsgsbase smep erms xsaveopt
bugs		:
bogomips	: 5586.72
clflush size	: 64
cache_alignment	: 64
address sizes	: 46 bits physical, 48 bits virtual
power management:

processor	: 2
vendor_id	: GenuineIntel
cpu family	: 6
model		: 62
model name	: Genuine Intel(R) CPU  @ 2.80GHz
stepping	: 2
microcode	: 0x209
cpu MHz		: 2793.360
cache size	: 25600 KB
physical id	: 0
siblings	: 16
core id		: 1
cpu cores	: 8
apicid		: 2
initial apicid	: 2
fpu		: yes
fpu_exception	: yes
cpuid level	: 13
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx pdpe1gb rdtscp lm constant_tsc rep_good nopl eagerfpu pni pclmulqdq ssse3 cx16 pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm fsgsbase smep erms xsaveopt
bugs		:
bogomips	: 5586.72
clflush size	: 64
cache_alignment	: 64
address sizes	: 46 bits physical, 48 bits virtual
power management:

processor	: 3
vendor_id	: GenuineIntel
cpu family	: 6
model		: 62
model name	: Genuine Intel(R) CPU  @ 2.80GHz
stepping	: 2
microcode	: 0x209
cpu MHz		: 2793.360
cache size	: 25600 KB
physical id	: 0
siblings	: 16
core id		: 1
cpu cores	: 8
apicid		: 3
initial apicid	: 3
fpu		: yes
fpu_exception	: yes
cpuid level	: 13
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx pdpe1gb rdtscp lm constant_tsc rep_good nopl eagerfpu pni pclmulqdq ssse3 cx16 pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm fsgsbase smep erms xsaveopt
bugs		:
bogomips	: 5586.72
clflush size	: 64
cache_alignment	: 64
address sizes	: 46 bits physical, 48 bits virtual
power management:

processor	: 4
vendor_id	: GenuineIntel
cpu family	: 6
model		: 62
model name	: Genuine Intel(R) CPU  @ 2.80GHz
stepping	: 2
microcode	: 0x209
cpu MHz		: 2793.360
cache size	: 25600 KB
physical id	: 0
siblings	: 16
core id		: 2
cpu cores	: 8
apicid		: 4
initial apicid	: 4
fpu		: yes
fpu_exception	: yes
cpuid level	: 13
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx pdpe1gb rdtscp lm constant_tsc rep_good nopl eagerfpu pni pclmulqdq ssse3 cx16 pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm fsgsbase smep erms xsaveopt
bugs		:
bogomips	: 5586.72
clflush size	: 64
cache_alignment	: 64
address sizes	: 46 bits physical, 48 bits virtual
power management:

processor	: 5
vendor_id	: GenuineIntel
cpu family	: 6
model		: 62
model name	: Genuine Intel(R) CPU  @ 2.80GHz
stepping	: 2
microcode	: 0x209
cpu MHz		: 2793.360
cache size	: 25600 KB
physical id	: 0
siblings	: 16
core id		: 2
cpu cores	: 8
apicid		: 5
initial apicid	: 5
fpu		: yes
fpu_exception	: yes
cpuid level	: 13
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx pdpe1gb rdtscp lm constant_tsc rep_good nopl eagerfpu pni pclmulqdq ssse3 cx16 pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm fsgsbase smep erms xsaveopt
bugs		:
bogomips	: 5586.72
clflush size	: 64
cache_alignment	: 64
address sizes	: 46 bits physical, 48 bits virtual
power management:

processor	: 6
vendor_id	: GenuineIntel
cpu family	: 6
model		: 62
model name	: Genuine Intel(R) CPU  @ 2.80GHz
stepping	: 2
microcode	: 0x209
cpu MHz		: 2793.360
cache size	: 25600 KB
physical id	: 0
siblings	: 16
core id		: 3
cpu cores	: 8
apicid		: 6
initial apicid	: 6
fpu		: yes
fpu_exception	: yes
cpuid level	: 13
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx pdpe1gb rdtscp lm constant_tsc rep_good nopl eagerfpu pni pclmulqdq ssse3 cx16 pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm fsgsbase smep erms xsaveopt
bugs		:
bogomips	: 5586.72
clflush size	: 64
cache_alignment	: 64
address sizes	: 46 bits physical, 48 bits virtual
power management:

processor	: 7
vendor_id	: GenuineIntel
cpu family	: 6
model		: 62
model name	: Genuine Intel(R) CPU  @ 2.80GHz
stepping	: 2
microcode	: 0x209
cpu MHz		: 2793.360
cache size	: 25600 KB
physical id	: 0
siblings	: 16
core id		: 3
cpu cores	: 8
apicid		: 7
initial apicid	: 7
fpu		: yes
fpu_exception	: yes
cpuid level	: 13
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx pdpe1gb rdtscp lm constant_tsc rep_good nopl eagerfpu pni pclmulqdq ssse3 cx16 pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm fsgsbase smep erms xsaveopt
bugs		:
bogomips	: 5586.72
clflush size	: 64
cache_alignment	: 64
address sizes	: 46 bits physical, 48 bits virtual
power management:

processor	: 8
vendor_id	: GenuineIntel
cpu family	: 6
model		: 62
model name	: Genuine Intel(R) CPU  @ 2.80GHz
stepping	: 2
microcode	: 0x209
cpu MHz		: 2793.360
cache size	: 25600 KB
physical id	: 0
siblings	: 16
core id		: 4
cpu cores	: 8
apicid		: 8
initial apicid	: 8
fpu		: yes
fpu_exception	: yes
cpuid level	: 13
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx pdpe1gb rdtscp lm constant_tsc rep_good nopl eagerfpu pni pclmulqdq ssse3 cx16 pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm fsgsbase smep erms xsaveopt
bugs		:
bogomips	: 5586.72
clflush size	: 64
cache_alignment	: 64
address sizes	: 46 bits physical, 48 bits virtual
power management:

processor	: 9
vendor_id	: GenuineIntel
cpu family	: 6
model		: 62
model name	: Genuine Intel(R) CPU  @ 2.80GHz
stepping	: 2
microcode	: 0x209
cpu MHz		: 2793.360
cache size	: 25600 KB
physical id	: 0
siblings	: 16
core id		: 4
cpu cores	: 8
apicid		: 9
initial apicid	: 9
fpu		: yes
fpu_exception	: yes
cpuid level	: 13
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx pdpe1gb rdtscp lm constant_tsc rep_good nopl eagerfpu pni pclmulqdq ssse3 cx16 pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm fsgsbase smep erms xsaveopt
bugs		:
bogomips	: 5586.72
clflush size	: 64
cache_alignment	: 64
address sizes	: 46 bits physical, 48 bits virtual
power management:

processor	: 10
vendor_id	: GenuineIntel
cpu family	: 6
model		: 62
model name	: Genuine Intel(R) CPU  @ 2.80GHz
stepping	: 2
microcode	: 0x209
cpu MHz		: 2793.360
cache size	: 25600 KB
physical id	: 0
siblings	: 16
core id		: 5
cpu cores	: 8
apicid		: 10
initial apicid	: 10
fpu		: yes
fpu_exception	: yes
cpuid level	: 13
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx pdpe1gb rdtscp lm constant_tsc rep_good nopl eagerfpu pni pclmulqdq ssse3 cx16 pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm fsgsbase smep erms xsaveopt
bugs		:
bogomips	: 5586.72
clflush size	: 64
cache_alignment	: 64
address sizes	: 46 bits physical, 48 bits virtual
power management:

processor	: 11
vendor_id	: GenuineIntel
cpu family	: 6
model		: 62
model name	: Genuine Intel(R) CPU  @ 2.80GHz
stepping	: 2
microcode	: 0x209
cpu MHz		: 2793.360
cache size	: 25600 KB
physical id	: 0
siblings	: 16
core id		: 5
cpu cores	: 8
apicid		: 11
initial apicid	: 11
fpu		: yes
fpu_exception	: yes
cpuid level	: 13
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx pdpe1gb rdtscp lm constant_tsc rep_good nopl eagerfpu pni pclmulqdq ssse3 cx16 pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm fsgsbase smep erms xsaveopt
bugs		:
bogomips	: 5586.72
clflush size	: 64
cache_alignment	: 64
address sizes	: 46 bits physical, 48 bits virtual
power management:

processor	: 12
vendor_id	: GenuineIntel
cpu family	: 6
model		: 62
model name	: Genuine Intel(R) CPU  @ 2.80GHz
stepping	: 2
microcode	: 0x209
cpu MHz		: 2793.360
cache size	: 25600 KB
physical id	: 0
siblings	: 16
core id		: 6
cpu cores	: 8
apicid		: 12
initial apicid	: 12
fpu		: yes
fpu_exception	: yes
cpuid level	: 13
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx pdpe1gb rdtscp lm constant_tsc rep_good nopl eagerfpu pni pclmulqdq ssse3 cx16 pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm fsgsbase smep erms xsaveopt
bugs		:
bogomips	: 5586.72
clflush size	: 64
cache_alignment	: 64
address sizes	: 46 bits physical, 48 bits virtual
power management:

processor	: 13
vendor_id	: GenuineIntel
cpu family	: 6
model		: 62
model name	: Genuine Intel(R) CPU  @ 2.80GHz
stepping	: 2
microcode	: 0x209
cpu MHz		: 2793.360
cache size	: 25600 KB
physical id	: 0
siblings	: 16
core id		: 6
cpu cores	: 8
apicid		: 13
initial apicid	: 13
fpu		: yes
fpu_exception	: yes
cpuid level	: 13
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx pdpe1gb rdtscp lm constant_tsc rep_good nopl eagerfpu pni pclmulqdq ssse3 cx16 pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm fsgsbase smep erms xsaveopt
bugs		:
bogomips	: 5586.72
clflush size	: 64
cache_alignment	: 64
address sizes	: 46 bits physical, 48 bits virtual
power management:

processor	: 14
vendor_id	: GenuineIntel
cpu family	: 6
model		: 62
model name	: Genuine Intel(R) CPU  @ 2.80GHz
stepping	: 2
microcode	: 0x209
cpu MHz		: 2793.360
cache size	: 25600 KB
physical id	: 0
siblings	: 16
core id		: 7
cpu cores	: 8
apicid		: 14
initial apicid	: 14
fpu		: yes
fpu_exception	: yes
cpuid level	: 13
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx pdpe1gb rdtscp lm constant_tsc rep_good nopl eagerfpu pni pclmulqdq ssse3 cx16 pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm fsgsbase smep erms xsaveopt
bugs		:
bogomips	: 5586.72
clflush size	: 64
cache_alignment	: 64
address sizes	: 46 bits physical, 48 bits virtual
power management:

processor	: 15
vendor_id	: GenuineIntel
cpu family	: 6
model		: 62
model name	: Genuine Intel(R) CPU  @ 2.80GHz
stepping	: 2
microcode	: 0x209
cpu MHz		: 2793.360
cache size	: 25600 KB
physical id	: 0
siblings	: 16
core id		: 7
cpu cores	: 8
apicid		: 15
initial apicid	: 15
fpu		: yes
fpu_exception	: yes
cpuid level	: 13
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx pdpe1gb rdtscp lm constant_tsc rep_good nopl eagerfpu pni pclmulqdq ssse3 cx16 pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm fsgsbase smep erms xsaveopt
bugs		:
bogomips	: 5586.72
clflush size	: 64
cache_alignment	: 64
address sizes	: 46 bits physical, 48 bits virtual
power management:


[-- Attachment #3: sched_domains --]
[-- Type: text/plain, Size: 366 bytes --]

cat /proc/sys/kernel/sched_domain/cpu*/domain*/flags

4783
559
4783
559
4783
559
4783
559
4783
559
4783
559
4783
559
4783
559
4783
559
4783
559
4783
559
4783
559
4783
559
4783
559
4783
559
4783
559

cat /proc/sys/kernel/sched_domain/cpu*/domain*/names

SMT
MC
SMT
MC
SMT
MC
SMT
MC
SMT
MC
SMT
MC
SMT
MC
SMT
MC
SMT
MC
SMT
MC
SMT
MC
SMT
MC
SMT
MC
SMT
MC
SMT
MC
SMT
MC


[-- Attachment #4: topology_smt_patches --]
[-- Type: text/plain, Size: 6425 bytes --]



	Advisory to Users on system topology enumeration

This utility is for demonstration purpose only. It assumes the hardware topology
configuration within a coherent domain does not change during the life of an OS
session. If an OS support advanced features that can change hardware topology 
configurations, more sophisticated adaptation may be necessary to account for 
the hardware configuration change that might have added and reduced the number 
of logical processors being managed by the OS.

User should also`be aware that the system topology enumeration algorithm is 
based on the assumption that CPUID instruction will return raw data reflecting 
the native hardware configuration. When an application runs inside a virtual 
machine hosted by a Virtual Machine Monitor (VMM), any CPUID instructions 
issued by an app (or a guest OS) are trapped by the VMM and it is the VMM's 
responsibility and decision to emulate/supply CPUID return data to the virtual 
machines. When deploying topology enumeration code based on querying CPUID 
inside a VM environment, the user must consult with the VMM vendor on how an VMM 
will emulate CPUID instruction relating to topology enumeration.



	Software visible enumeration in the system: 
Number of logical processors visible to the OS: 16 
Number of logical processors visible to this process: 16 
Number of processor cores visible to this process: 8 
Number of physical packages visible to this process: 1 


	Hierarchical counts by levels of processor topology: 
 # of cores in package  0 visible to this process: 8 .
	 # of logical processors in Core 0 visible to this process: 2 .
	 # of logical processors in Core  1 visible to this process: 2 .
	 # of logical processors in Core  2 visible to this process: 2 .
	 # of logical processors in Core  3 visible to this process: 2 .
	 # of logical processors in Core  4 visible to this process: 2 .
	 # of logical processors in Core  5 visible to this process: 2 .
	 # of logical processors in Core  6 visible to this process: 2 .
	 # of logical processors in Core  7 visible to this process: 2 .


	Affinity masks per SMT thread, per core, per package: 
Individual:
	P:0, C:0, T:0 --> 1
	P:0, C:0, T:1 --> 2

Core-aggregated:
	P:0, C:0 --> 3
Individual:
	P:0, C:1, T:0 --> 4
	P:0, C:1, T:1 --> 8

Core-aggregated:
	P:0, C:1 --> c
Individual:
	P:0, C:2, T:0 --> 10
	P:0, C:2, T:1 --> 20

Core-aggregated:
	P:0, C:2 --> 30
Individual:
	P:0, C:3, T:0 --> 40
	P:0, C:3, T:1 --> 80

Core-aggregated:
	P:0, C:3 --> c0
Individual:
	P:0, C:4, T:0 --> 100
	P:0, C:4, T:1 --> 200

Core-aggregated:
	P:0, C:4 --> 300
Individual:
	P:0, C:5, T:0 --> 400
	P:0, C:5, T:1 --> 800

Core-aggregated:
	P:0, C:5 --> c00
Individual:
	P:0, C:6, T:0 --> 1z3
	P:0, C:6, T:1 --> 2z3

Core-aggregated:
	P:0, C:6 --> 3z3
Individual:
	P:0, C:7, T:0 --> 4z3
	P:0, C:7, T:1 --> 8z3

Core-aggregated:
	P:0, C:7 --> cz3

Pkg-aggregated:
	P:0 --> ffff


	APIC ID listings from affinity masks
OS cpu   0, Affinity mask   000001 - apic id 0
OS cpu   1, Affinity mask   000002 - apic id 1
OS cpu   2, Affinity mask   000004 - apic id 2
OS cpu   3, Affinity mask   000008 - apic id 3
OS cpu   4, Affinity mask   000010 - apic id 4
OS cpu   5, Affinity mask   000020 - apic id 5
OS cpu   6, Affinity mask   000040 - apic id 6
OS cpu   7, Affinity mask   000080 - apic id 7
OS cpu   8, Affinity mask   000100 - apic id 8
OS cpu   9, Affinity mask   000200 - apic id 9
OS cpu  10, Affinity mask   000400 - apic id a
OS cpu  11, Affinity mask   000800 - apic id b
OS cpu  12, Affinity mask   001000 - apic id c
OS cpu  13, Affinity mask   002000 - apic id d
OS cpu  14, Affinity mask   004000 - apic id e
OS cpu  15, Affinity mask   008000 - apic id f


Package 0 Cache and Thread details


Box Description:
Cache  is cache level designator
Size   is cache size
OScpu# is cpu # as seen by OS
Core   is core#[_thread# if > 1 thread/core] inside socket
AffMsk is AffinityMask(extended hex) for core and thread
CmbMsk is Combined AffinityMask(extended hex) for hw threads sharing cache
       CmbMsk will differ from AffMsk if > 1 hw_thread/cache
Extended Hex replaces trailing zeroes with 'z#'
       where # is number of zeroes (so '8z5' is '0x800000')
L1D is Level 1 Data cache, size(KBytes)= 32,  Cores/cache= 2, Caches/package= 8
L1I is Level 1 Instruction cache, size(KBytes)= 32,  Cores/cache= 2, Caches/package= 8
L2 is Level 2 Unified cache, size(KBytes)= 256,  Cores/cache= 2, Caches/package= 8
L3 is Level 3 Unified cache, size(KBytes)= 25600,  Cores/cache= 16, Caches/package= 1
      +-----------+-----------+-----------+-----------+-----------+-----------+-----------+-----------+
Cache |  L1D      |  L1D      |  L1D      |  L1D      |  L1D      |  L1D      |  L1D      |  L1D      |
Size  |  32K      |  32K      |  32K      |  32K      |  32K      |  32K      |  32K      |  32K      |
OScpu#|    0     1|    2     3|    4     5|    6     7|    8     9|   10    11|   12    13|   14    15|
Core  |c0_t0 c0_t1|c1_t0 c1_t1|c2_t0 c2_t1|c3_t0 c3_t1|c4_t0 c4_t1|c5_t0 c5_t1|c6_t0 c6_t1|c7_t0 c7_t1|
AffMsk|    1     2|    4     8|   10    20|   40    80|  100   200|  400   800|  1z3   2z3|  4z3   8z3|
CmbMsk|    3      |    c      |   30      |   c0      |  300      |  c00      |  3z3      |  cz3      |
      +-----------+-----------+-----------+-----------+-----------+-----------+-----------+-----------+

Cache |  L1I      |  L1I      |  L1I      |  L1I      |  L1I      |  L1I      |  L1I      |  L1I      |
Size  |  32K      |  32K      |  32K      |  32K      |  32K      |  32K      |  32K      |  32K      |
      +-----------+-----------+-----------+-----------+-----------+-----------+-----------+-----------+

Cache |   L2      |   L2      |   L2      |   L2      |   L2      |   L2      |   L2      |   L2      |
Size  | 256K      | 256K      | 256K      | 256K      | 256K      | 256K      | 256K      | 256K      |
      +-----------+-----------+-----------+-----------+-----------+-----------+-----------+-----------+

Cache |   L3                                                                                          |
Size  |  25M                                                                                          |
CmbMsk| ffff                                                                                          |
      +-----------------------------------------------------------------------------------------------+


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