[Linuxtrent] Re: Proxmox: CPU Sockets e/o Cores/Socket ?
- From: Flavio Stanchina <flavio@xxxxxxxxxxxxx>
- To: linuxtrent@xxxxxxxxxxxxx
- Date: Thu, 21 Jan 2010 17:26:39 +0100
Flavio Stanchina wrote:
Quello che mi domando è se questa impostazione cambia la "visione"
dell'hardware virtuale (i.e. la macchina virtuale vede due CPU separate
o una CPU con due core), se configura l'affinità del processo nei
confronti di CPU / core sulla macchina fisica, o se fa entrambe le cose.
[...]
...credo che lancerò una Knoppix per cercare di capire che cosa vede la
macchina virtuale, ma non saprei come fare per verificare quello che
succede sull'hardware fisico.
Ecco /proc/cpuinfo e dmesg delle due opzioni, prodotti da un kernel
2.4.24.4:
*.2cpu: due CPU con un core/socket
*.2core: una cpu con due core/socket
Effettivamente la macchina virtuale vede due CPU separate nel primo
caso, una CPU con due core nel secondo.
Hmmm... KVM, o meglio, QEMU sarà così furbo da attaccarsi a due core
sulla stessa CPU nel secondo caso? O forse lo fa comunque?
--
Ciao, Flavio
processor : 0
vendor_id : AuthenticAMD
cpu family : 6
model : 2
model name : QEMU Virtual CPU version 0.11.1
stepping : 3
cpu MHz : 2493.918
cache size : 512 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 4
wp : yes
flags : fpu de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat
pse36 clflush mmx fxsr sse sse2 syscall nx lm pni
bogomips : 4994.45
clflush size : 64
processor : 1
vendor_id : AuthenticAMD
cpu family : 6
model : 2
model name : QEMU Virtual CPU version 0.11.1
stepping : 3
cpu MHz : 2493.918
cache size : 512 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 4
wp : yes
flags : fpu de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat
pse36 clflush mmx fxsr sse sse2 syscall nx lm pni
bogomips : 4989.05
clflush size : 64
processor : 0
vendor_id : AuthenticAMD
cpu family : 6
model : 2
model name : QEMU Virtual CPU version 0.11.1
stepping : 3
cpu MHz : 2493.909
cache size : 512 KB
physical id : 0
siblings : 2
core id : 0
cpu cores : 2
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 4
wp : yes
flags : fpu de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat
pse36 clflush mmx fxsr sse sse2 ht syscall nx lm pni cmp_legacy
bogomips : 4994.27
clflush size : 64
processor : 1
vendor_id : AuthenticAMD
cpu family : 6
model : 2
model name : QEMU Virtual CPU version 0.11.1
stepping : 3
cpu MHz : 2493.909
cache size : 512 KB
physical id : 0
siblings : 2
core id : 1
cpu cores : 2
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 4
wp : yes
flags : fpu de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat
pse36 clflush mmx fxsr sse sse2 ht syscall nx lm pni cmp_legacy
bogomips : 4989.97
clflush size : 64
Linux version 2.6.24.4 (root@Knoppix) (gcc version 4.2.3 (Debian 4.2.3-2)) #2
SMP PREEMPT Tue Mar 25 21:35:28 CET 2008
BIOS-provided physical RAM map:
BIOS-e820: 0000000000000000 - 000000000009f000 (usable)
BIOS-e820: 000000000009f000 - 00000000000a0000 (reserved)
BIOS-e820: 00000000000e8000 - 0000000000100000 (reserved)
BIOS-e820: 0000000000100000 - 000000001fff0000 (usable)
BIOS-e820: 000000001fff0000 - 0000000020000000 (ACPI data)
BIOS-e820: 00000000fffbc000 - 0000000100000000 (reserved)
0MB HIGHMEM available.
511MB LOWMEM available.
found SMP MP-table at 000fbc90
Entering add_active_range(0, 0, 131056) 0 entries of 256 used
Zone PFN ranges:
DMA 0 -> 4096
Normal 4096 -> 131056
HighMem 131056 -> 131056
Movable zone start PFN for each node
early_node_map[1] active PFN ranges
0: 0 -> 131056
On node 0 totalpages: 131056
DMA zone: 32 pages used for memmap
DMA zone: 0 pages reserved
DMA zone: 4064 pages, LIFO batch:0
Normal zone: 991 pages used for memmap
Normal zone: 125969 pages, LIFO batch:31
HighMem zone: 0 pages used for memmap
Movable zone: 0 pages used for memmap
DMI 2.4 present.
ACPI: RSDP 000FBDE0, 0014 (r0 QEMU )
ACPI: RSDT 1FFF0000, 0034 (r1 QEMU QEMURSDT 1 QEMU 1)
ACPI: FACP 1FFF01B4, 0074 (r1 QEMU QEMUFACP 1 QEMU 1)
ACPI: DSDT 1FFF0280, 1DD4 (r1 BXPC BXDSDT 1 INTL 20061109)
ACPI: FACS 1FFF0240, 0040
ACPI: SSDT 1FFF2054, 09E3 (r1 BXPC BXSSDT 1 INTL 20061109)
ACPI: APIC 1FFF2A38, 00EA (r1 QEMU QEMUAPIC 1 QEMU 1)
ACPI: HPET 1FFF2B90, 0038 (r1 QEMU QEMUHPET 1 QEMU 1)
ACPI: PM-Timer IO Port: 0xb008
ACPI: Local APIC address 0xfee00000
ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled)
Processor #0 6:2 APIC version 20
ACPI: LAPIC (acpi_id[0x01] lapic_id[0x01] enabled)
Processor #1 6:2 APIC version 20
ACPI: LAPIC (acpi_id[0x02] lapic_id[0x02] disabled)
ACPI: LAPIC (acpi_id[0x03] lapic_id[0x03] disabled)
ACPI: LAPIC (acpi_id[0x04] lapic_id[0x04] disabled)
ACPI: LAPIC (acpi_id[0x05] lapic_id[0x05] disabled)
ACPI: LAPIC (acpi_id[0x06] lapic_id[0x06] disabled)
ACPI: LAPIC (acpi_id[0x07] lapic_id[0x07] disabled)
ACPI: LAPIC (acpi_id[0x08] lapic_id[0x08] disabled)
ACPI: LAPIC (acpi_id[0x09] lapic_id[0x09] disabled)
ACPI: LAPIC (acpi_id[0x0a] lapic_id[0x0a] disabled)
ACPI: LAPIC (acpi_id[0x0b] lapic_id[0x0b] disabled)
ACPI: LAPIC (acpi_id[0x0c] lapic_id[0x0c] disabled)
ACPI: LAPIC (acpi_id[0x0d] lapic_id[0x0d] disabled)
ACPI: LAPIC (acpi_id[0x0e] lapic_id[0x0e] disabled)
ACPI: LAPIC (acpi_id[0x0f] lapic_id[0x0f] disabled)
ACPI: IOAPIC (id[0x02] address[0xfec00000] gsi_base[0])
IOAPIC[0]: apic_id 2, version 17, address 0xfec00000, GSI 0-23
ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level)
ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level)
ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level)
ACPI: IRQ0 used by override.
ACPI: IRQ2 used by override.
ACPI: IRQ5 used by override.
ACPI: IRQ9 used by override.
ACPI: IRQ10 used by override.
ACPI: IRQ11 used by override.
Enabling APIC mode: Flat. Using 1 I/O APICs
ACPI: HPET id: 0x8086a201 base: 0xfed00000
Using ACPI (MADT) for SMP configuration information
Allocating PCI resources starting at 30000000 (gap: 20000000:dffbc000)
swsusp: Registered nosave memory region: 000000000009f000 - 00000000000a0000
swsusp: Registered nosave memory region: 00000000000a0000 - 00000000000e8000
swsusp: Registered nosave memory region: 00000000000e8000 - 0000000000100000
Built 1 zonelists in Zone order, mobility grouping on. Total pages: 130033
Kernel command line: ramdisk_size=100000 init=/etc/init lang=us apm=power-off
vga=791 initrd=minirt.gz nomce highres=off loglevel=0 libata.atapi_enabled=1
quiet SELINUX_INIT=NO nmi_watchdog=0 BOOT_IMAGE=knoppix BOOT_IMAGE=linux 2
mapped APIC to ffffb000 (fee00000)
mapped IOAPIC to ffffa000 (fec00000)
Enabling fast FPU save and restore... done.
Enabling unmasked SIMD FPU exception support... done.
Initializing CPU#0
PID hash table entries: 2048 (order: 11, 8192 bytes)
Detected 2493.918 MHz processor.
Console: colour dummy device 80x25
console [tty0] enabled
Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)
Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)
Memory: 511872k/524224k available (3742k kernel code, 11776k reserved, 1262k
data, 420k init, 0k highmem)
virtual kernel memory layout:
fixmap : 0xffe13000 - 0xfffff000 (1968 kB)
pkmap : 0xff800000 - 0xffc00000 (4096 kB)
vmalloc : 0xe0800000 - 0xff7fe000 ( 495 MB)
lowmem : 0xc0000000 - 0xdfff0000 ( 511 MB)
.init : 0xc05ea000 - 0xc0653000 ( 420 kB)
.data : 0xc04a78c8 - 0xc05e327c (1262 kB)
.text : 0xc0100000 - 0xc04a78c8 (3742 kB)
Checking if this processor honours the WP bit even in supervisor mode... Ok.
Calibrating delay using timer specific routine.. 4994.45 BogoMIPS (lpj=8320724)
Security Framework initialized
SELinux: Initializing.
SELinux: Starting in permissive mode
selinux_register_security: Registering secondary module capability
Capability LSM initialized as secondary
Mount-cache hash table entries: 512
CPU: After generic identify, caps: 078bfbfd 2191abfd 00000000 00000000 80000001
00000000 00000000 00000000
CPU: L1 I Cache: 64K (64 bytes/line), D cache 64K (64 bytes/line)
CPU: L2 Cache: 512K (64 bytes/line)
CPU: After all inits, caps: 078bfbfd 2191abfd 00000000 00000420 80000001
00000000 00000000 00000000
Compat vDSO mapped to ffffe000.
Checking 'hlt' instruction... OK.
Checking for popad bug... OK.
SMP alternatives: switching to UP code
ACPI: Core revision 20070126
CPU0: AMD QEMU Virtual CPU version 0.11.1 stepping 03
SMP alternatives: switching to SMP code
Booting processor 1/1 eip 3000
Initializing CPU#1
Calibrating delay using timer specific routine.. 4989.05 BogoMIPS (lpj=8312086)
CPU: After generic identify, caps: 078bfbfd 2191abfd 00000000 00000000 80000001
00000000 00000000 00000000
CPU: L1 I Cache: 64K (64 bytes/line), D cache 64K (64 bytes/line)
CPU: L2 Cache: 512K (64 bytes/line)
CPU: After all inits, caps: 078bfbfd 2191abfd 00000000 00000420 80000001
00000000 00000000 00000000
CPU1: AMD QEMU Virtual CPU version 0.11.1 stepping 03
Total of 2 processors activated (9983.50 BogoMIPS).
WARNING: This combination of AMD processors is not suitable for SMP.
ENABLING IO-APIC IRQs
..TIMER: vector=0x31 apic1=0 pin1=2 apic2=-1 pin2=-1
Brought up 2 CPUs
net_namespace: 64 bytes
Booting paravirtualized kernel on bare hardware
...Linux version 2.6.24.4 (root@Knoppix) (gcc version 4.2.3 (Debian 4.2.3-2)) #2
SMP PREEMPT Tue Mar 25 21:35:28 CET 2008
BIOS-provided physical RAM map:
BIOS-e820: 0000000000000000 - 000000000009f000 (usable)
BIOS-e820: 000000000009f000 - 00000000000a0000 (reserved)
BIOS-e820: 00000000000e8000 - 0000000000100000 (reserved)
BIOS-e820: 0000000000100000 - 000000001fff0000 (usable)
BIOS-e820: 000000001fff0000 - 0000000020000000 (ACPI data)
BIOS-e820: 00000000fffbc000 - 0000000100000000 (reserved)
0MB HIGHMEM available.
511MB LOWMEM available.
found SMP MP-table at 000fbc90
Entering add_active_range(0, 0, 131056) 0 entries of 256 used
Zone PFN ranges:
DMA 0 -> 4096
Normal 4096 -> 131056
HighMem 131056 -> 131056
Movable zone start PFN for each node
early_node_map[1] active PFN ranges
0: 0 -> 131056
On node 0 totalpages: 131056
DMA zone: 32 pages used for memmap
DMA zone: 0 pages reserved
DMA zone: 4064 pages, LIFO batch:0
Normal zone: 991 pages used for memmap
Normal zone: 125969 pages, LIFO batch:31
HighMem zone: 0 pages used for memmap
Movable zone: 0 pages used for memmap
DMI 2.4 present.
ACPI: RSDP 000FBDE0, 0014 (r0 QEMU )
ACPI: RSDT 1FFF0000, 0034 (r1 QEMU QEMURSDT 1 QEMU 1)
ACPI: FACP 1FFF01B4, 0074 (r1 QEMU QEMUFACP 1 QEMU 1)
ACPI: DSDT 1FFF0280, 1DD4 (r1 BXPC BXDSDT 1 INTL 20061109)
ACPI: FACS 1FFF0240, 0040
ACPI: SSDT 1FFF2054, 09E3 (r1 BXPC BXSSDT 1 INTL 20061109)
ACPI: APIC 1FFF2A38, 00EA (r1 QEMU QEMUAPIC 1 QEMU 1)
ACPI: HPET 1FFF2B90, 0038 (r1 QEMU QEMUHPET 1 QEMU 1)
ACPI: PM-Timer IO Port: 0xb008
ACPI: Local APIC address 0xfee00000
ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled)
Processor #0 6:2 APIC version 20
ACPI: LAPIC (acpi_id[0x01] lapic_id[0x01] enabled)
Processor #1 6:2 APIC version 20
ACPI: LAPIC (acpi_id[0x02] lapic_id[0x02] disabled)
ACPI: LAPIC (acpi_id[0x03] lapic_id[0x03] disabled)
ACPI: LAPIC (acpi_id[0x04] lapic_id[0x04] disabled)
ACPI: LAPIC (acpi_id[0x05] lapic_id[0x05] disabled)
ACPI: LAPIC (acpi_id[0x06] lapic_id[0x06] disabled)
ACPI: LAPIC (acpi_id[0x07] lapic_id[0x07] disabled)
ACPI: LAPIC (acpi_id[0x08] lapic_id[0x08] disabled)
ACPI: LAPIC (acpi_id[0x09] lapic_id[0x09] disabled)
ACPI: LAPIC (acpi_id[0x0a] lapic_id[0x0a] disabled)
ACPI: LAPIC (acpi_id[0x0b] lapic_id[0x0b] disabled)
ACPI: LAPIC (acpi_id[0x0c] lapic_id[0x0c] disabled)
ACPI: LAPIC (acpi_id[0x0d] lapic_id[0x0d] disabled)
ACPI: LAPIC (acpi_id[0x0e] lapic_id[0x0e] disabled)
ACPI: LAPIC (acpi_id[0x0f] lapic_id[0x0f] disabled)
ACPI: IOAPIC (id[0x02] address[0xfec00000] gsi_base[0])
IOAPIC[0]: apic_id 2, version 17, address 0xfec00000, GSI 0-23
ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level)
ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level)
ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level)
ACPI: IRQ0 used by override.
ACPI: IRQ2 used by override.
ACPI: IRQ5 used by override.
ACPI: IRQ9 used by override.
ACPI: IRQ10 used by override.
ACPI: IRQ11 used by override.
Enabling APIC mode: Flat. Using 1 I/O APICs
ACPI: HPET id: 0x8086a201 base: 0xfed00000
Using ACPI (MADT) for SMP configuration information
Allocating PCI resources starting at 30000000 (gap: 20000000:dffbc000)
swsusp: Registered nosave memory region: 000000000009f000 - 00000000000a0000
swsusp: Registered nosave memory region: 00000000000a0000 - 00000000000e8000
swsusp: Registered nosave memory region: 00000000000e8000 - 0000000000100000
Built 1 zonelists in Zone order, mobility grouping on. Total pages: 130033
Kernel command line: ramdisk_size=100000 init=/etc/init lang=us apm=power-off
vga=791 initrd=minirt.gz nomce highres=off loglevel=0 libata.atapi_enabled=1
quiet SELINUX_INIT=NO nmi_watchdog=0 BOOT_IMAGE=knoppix BOOT_IMAGE=linux 2
mapped APIC to ffffb000 (fee00000)
mapped IOAPIC to ffffa000 (fec00000)
Enabling fast FPU save and restore... done.
Enabling unmasked SIMD FPU exception support... done.
Initializing CPU#0
PID hash table entries: 2048 (order: 11, 8192 bytes)
Detected 2493.909 MHz processor.
Console: colour dummy device 80x25
console [tty0] enabled
Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)
Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)
Memory: 511872k/524224k available (3742k kernel code, 11776k reserved, 1262k
data, 420k init, 0k highmem)
virtual kernel memory layout:
fixmap : 0xffe13000 - 0xfffff000 (1968 kB)
pkmap : 0xff800000 - 0xffc00000 (4096 kB)
vmalloc : 0xe0800000 - 0xff7fe000 ( 495 MB)
lowmem : 0xc0000000 - 0xdfff0000 ( 511 MB)
.init : 0xc05ea000 - 0xc0653000 ( 420 kB)
.data : 0xc04a78c8 - 0xc05e327c (1262 kB)
.text : 0xc0100000 - 0xc04a78c8 (3742 kB)
Checking if this processor honours the WP bit even in supervisor mode... Ok.
Calibrating delay using timer specific routine.. 4994.27 BogoMIPS (lpj=8320440)
Security Framework initialized
SELinux: Initializing.
SELinux: Starting in permissive mode
selinux_register_security: Registering secondary module capability
Capability LSM initialized as secondary
Mount-cache hash table entries: 512
CPU: After generic identify, caps: 178bfbfd 2191abfd 00000000 00000000 80000001
00000000 00000002 00000000
CPU: L1 I Cache: 64K (64 bytes/line), D cache 64K (64 bytes/line)
CPU: L2 Cache: 512K (64 bytes/line)
CPU 0(2) -> Core 0
CPU: After all inits, caps: 178bfbfd 2191abfd 00000000 00000420 80000001
00000000 00000002 00000000
Compat vDSO mapped to ffffe000.
Checking 'hlt' instruction... OK.
Checking for popad bug... OK.
SMP alternatives: switching to UP code
ACPI: Core revision 20070126
CPU0: AMD QEMU Virtual CPU version 0.11.1 stepping 03
SMP alternatives: switching to SMP code
Booting processor 1/1 eip 3000
Initializing CPU#1
Calibrating delay using timer specific routine.. 4989.97 BogoMIPS (lpj=8311957)
CPU: After generic identify, caps: 178bfbfd 2191abfd 00000000 00000000 80000001
00000000 00000002 00000000
CPU: L1 I Cache: 64K (64 bytes/line), D cache 64K (64 bytes/line)
CPU: L2 Cache: 512K (64 bytes/line)
CPU 1(2) -> Core 1
CPU: After all inits, caps: 178bfbfd 2191abfd 00000000 00000420 80000001
00000000 00000002 00000000
CPU1: AMD QEMU Virtual CPU version 0.11.1 stepping 03
Total of 2 processors activated (9983.24 BogoMIPS).
WARNING: This combination of AMD processors is not suitable for SMP.
ENABLING IO-APIC IRQs
..TIMER: vector=0x31 apic1=0 pin1=2 apic2=-1 pin2=-1
Brought up 2 CPUs
net_namespace: 64 bytes
Booting paravirtualized kernel on bare hardware
...
Other related posts:
