You can tell with an "xm list". If you have Dom0 and 2 DomU's running,
unless you pinned each dom to the same processor, XEN should have at
least one of three on the second processor. An example of what a dual
processor box looks like would be:
xen0 root # xm list
Name Id Mem(MB) CPU State Time(s) Console
Domain-0 0 155 0 r---- 231393.8
domU-1 1 31 1 -b--- 181150.6 9601
domU-2 2 127 0 -b--- 163574.0 9602
domU-3 3 31 1 -b--- 785.2 9603
domU-4 4 79 0 ----- 151464.4 9604
See the column "CPU". It shows to which XEN cpu the dom is running on.
B.
On Sun, 2005-02-27 at 07:42, Franck wrote:
> >>>This is OK, each guest only sees one processor. If you start another
> >>>domain it will use the second one.
> >>
> >>No, i don't think because i'm on my host guest, not in guest.
> >>
> >
> > What does "xm dmesg" show? Remember, XEN is sitting between Dom0 and
> > your hardware. XEN should report 2+ processors on an SMP box, however
> > Dom0 will only "see" one.
>
> Ok, dmeg look like 2 CPU and assign only CPU0 to dom0
> I've 2 xenU guest running, each one has 1 CPU ?
> How can i find if the 2 CPU are working on the system ?
>
>
> xm dmesg
> [...]
> (XEN) CPU0: Before vendor init, caps: 0183fbff 00000000 00000000, vendor = 0
> (XEN) CPU caps: 0183fbff 00000000 00000000 00000000
> (XEN) found SMP MP-table at 000f5ae0
> (XEN) ACPI: RSDP (v000 ABIT ) @
> 0x000f7370
> (XEN) ACPI: RSDT (v001 ABIT AWRDACPI 0x42302e31 AWRD 0x00000000) @
> 0x11ff3000
> (XEN) ACPI: FADT (v001 ABIT AWRDACPI 0x42302e31 AWRD 0x00000000) @
> 0x11ff3040
> (XEN) ACPI: MADT (v001 ABIT 0x00000000 0x00000000) @ 0x11ff54c0
> (XEN) ACPI: DSDT (v001 ABIT AWRDACPI 0x00001000 MSFT 0x0100000c) @
> 0x00000000
> (XEN) ACPI: Local APIC address 0xfee00000
> (XEN) ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled)
> (XEN) Processor #0 Pentium(tm) Pro APIC version 17
> (XEN) ACPI: LAPIC (acpi_id[0x01] lapic_id[0x01] enabled)
> (XEN) Processor #1 Pentium(tm) Pro APIC version 17
> (XEN) Using ACPI for processor (LAPIC) configuration information
> (XEN) Intel MultiProcessor Specification v1.4
> (XEN) Virtual Wire compatibility mode.
> (XEN) OEM ID: OEM00000 Product ID: PROD00000000 APIC at: 0xFEE00000
> (XEN) I/O APIC #2 Version 17 at 0xFEC00000.
> (XEN) Enabling APIC mode: Flat. Using 1 I/O APICs
> (XEN) Processors: 2
> (XEN) Using scheduler: Borrowed Virtual Time (bvt)
> (XEN) Initializing CPU#0
> (XEN) Detected 367.508 MHz processor.
> (XEN) CPU0: Before vendor init, caps: 0183fbff 00000000 00000000, vendor = 0
> (XEN) CPU caps: 0183fbff 00000000 00000000 00000000
> (XEN) CPU0 booted
> (XEN) enabled ExtINT on CPU#0
> (XEN) ESR value before enabling vector: 00000000
> (XEN) ESR value after enabling vector: 00000000
> (XEN) Booting processor 1/1 eip 90000
> (XEN) Initializing CPU#1
> (XEN) masked ExtINT on CPU#1
> (XEN) ESR value before enabling vector: 00000000
> (XEN) ESR value after enabling vector: 00000000
> (XEN) CPU1: Before vendor init, caps: 0183fbff 00000000 00000000, vendor = 0
> (XEN) CPU caps: 0183fbff 00000000 00000000 00000000
> (XEN) CPU1 has booted.
> (XEN) Total of 2 processors activated.
> (XEN) ENABLING IO-APIC IRQs
> (XEN) Setting 2 in the phys_id_present_map
> (XEN) ...changing IO-APIC physical APIC ID to 2 ... ok.
> (XEN) init IO_APIC IRQs
> (XEN) ..TIMER: vector=0x41 pin1=2 pin2=0
> (XEN) Using local APIC timer interrupts.
> (XEN) Calibrating APIC timer for CPU0...
> (XEN) ..... CPU speed is 367.5020 MHz.
> (XEN) ..... Bus speed is 66.8184 MHz.
> (XEN) ..... bus_scale = 0x0000446D
> (XEN) checking TSC synchronization across CPUs: passed.
> (XEN) Time init:
> (XEN) .... System Time: 60875099ns
> (XEN) .... cpu_freq: 00000000:15E7BDE0
> (XEN) .... scale: 00000002:B894E76A
> (XEN) .... Wall Clock: 1109504276s 190000us
> (XEN) PCI: PCI BIOS revision 2.10 entry at 0xfb5c0, last bus=1
> (XEN) PCI: Using configuration type 1
> (XEN) PCI: Probing PCI hardware
> (XEN) PCI: Probing PCI hardware (bus 00)
> (XEN) PCI: Using IRQ router PIIX/ICH [8086/7110] at 00:07.0
> (XEN) PCI->APIC IRQ transform: (B0,I9,P0) -> 19
> (XEN) PCI->APIC IRQ transform: (B0,I13,P0) -> 17
> (XEN) PCI->APIC IRQ transform: (B0,I19,P0) -> 18
> (XEN) PCI->APIC IRQ transform: (B0,I19,P1) -> 18
> (XEN) PCI->APIC IRQ transform: (B1,I0,P0) -> 16
> (XEN) Limiting direct PCI/PCI transfers.
> (XEN) mtrr: v2.0 (20020519)
> (XEN) mtrr: your CPUs had inconsistent fixed MTRR settings
> (XEN) mtrr: probably your BIOS does not setup all CPUs.
> (XEN) mtrr: corrected configuration.
> (XEN) *** LOADING DOMAIN 0 ***
> [...]
>
>
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