core 2 duo and 'top' command

nass · 04-23-2007, 07:25 AM

hello everyone,
im wondering,
core 2 duo is 2 processors..
shouldn't i see smth about it in the top command?
or are the 12 core's transparent to the OS and the applications...
is there a wait to see their independent loads?

here is a 'printscreen' of top:

Quote:

root@Stargaze:/mnt# top
top - 15:15:11 up 1:04, 1 user, load average: 1.10, 1.15, 1.02
Tasks: 79 total, 2 running, 77 sleeping, 0 stopped, 0 zombie
Cpu(s): 0.0%us, 4.6%sy, 0.0%ni, 85.6%id, 0.0%wa, 9.3%hi, 0.5%si, 0.0%st
Mem: 2071084k total, 235080k used, 1836004k free, 57584k buffers
Swap: 2097136k total, 0k used, 2097136k free, 141124k cached

PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
3648 root 10 -5 0 0 0 S 9 0.0 3:01.62 md0_raid5
3650 root 10 -5 0 0 0 D 1 0.0 0:16.89 md0_resync
1 root 15 0 708 264 232 S 0 0.0 0:01.10 init
...
...
...

shouldn't i see 2x of line: Cpu(s).... ???

i checked the dmesg and it identifies 2x core on bootup. here:

Quote:

ACPI: RSDP (v000 GBT) @ 0x000f6e60
ACPI: RSDT (v001 GBT GBTUACPI 0x42302e31 GBTU 0x01010101) @ 0x7fee3040
ACPI: FADT (v001 GBT GBTUACPI 0x42302e31 GBTU 0x01010101) @ 0x7fee30c0
ACPI: HPET (v001 GBT GBTUACPI 0x42302e31 GBTU 0x00000098) @ 0x7fee7cc0
ACPI: MCFG (v001 GBT GBTUACPI 0x42302e31 GBTU 0x01010101) @ 0x7fee7d40
ACPI: MADT (v001 GBT GBTUACPI 0x42302e31 GBTU 0x01010101) @ 0x7fee7bc0
ACPI: SSDT (v001 PmRef Cpu0Ist 0x00003000 INTL 0x20040311) @ 0x7fee7dc0
ACPI: SSDT (v001 PmRef CpuPm 0x00003000 INTL 0x20040311) @ 0x7fee8250
ACPI: DSDT (v001 GBT GBTUACPI 0x00001000 MSFT 0x0100000c) @ 0x00000000
ACPI: PM-Timer IO Port: 0x408
ACPI: Local APIC address 0xfee00000
ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled)
Processor #0 6:15 APIC version 20---------------------here core#0
ACPI: LAPIC (acpi_id[0x01] lapic_id[0x01] enabled)
Processor #1 6:15 APIC version 20---------------------here core#1
ACPI: LAPIC (acpi_id[0x02] lapic_id[0x02] disabled)
ACPI: LAPIC (acpi_id[0x03] lapic_id[0x03] disabled)
ACPI: LAPIC_NMI (acpi_id[0x00] dfl dfl lint[0x1])
ACPI: LAPIC_NMI (acpi_id[0x01] dfl dfl lint[0x1])
ACPI: LAPIC_NMI (acpi_id[0x02] dfl dfl lint[0x1])
ACPI: LAPIC_NMI (acpi_id[0x03] dfl dfl lint[0x1])
ACPI: IOAPIC (id[0x02] address[0xfec00000] gsi_base[0])
IOAPIC[0]: apic_id 2, version 32, 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 9 global_irq 9 high level)
ACPI: IRQ0 used by override.
ACPI: IRQ2 used by override.
ACPI: IRQ9 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 80000000 (gap: 7ff00000:70100000)
Detected 2133.487 MHz processor.
Built 1 zonelists. Total pages: 519907
Kernel command line: auto BOOT_IMAGE=Lin_server_5 ro root=801
mapped APIC to ffffd000 (fee00000)
mapped IOAPIC to ffffc000 (fec00000)
Enabling fast FPU save and restore... done.
Enabling unmasked SIMD FPU exception support... done.
Initializing CPU#0-----------------------------------------------here core#0
PID hash table entries: 4096 (order: 12, 16384 bytes)
Console: colour VGA+ 80x25
Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
Memory: 2070008k/2096000k available (4591k kernel code, 24856k reserved, 1938k data, 308k init, 1178496k highmem)
virtual kernel memory layout:
fixmap : 0xffe17000 - 0xfffff000 (1952 kB)
pkmap : 0xff800000 - 0xffc00000 (4096 kB)
vmalloc : 0xf8800000 - 0xff7fe000 ( 111 MB)
lowmem : 0xc0000000 - 0xf8000000 ( 896 MB)
.init : 0xc076a000 - 0xc07b7000 ( 308 kB)
.data : 0xc057beb2 - 0xc07609b0 (1938 kB)
.text : 0xc0100000 - 0xc057beb2 (4591 kB)
Checking if this processor honours the WP bit even in supervisor mode... Ok.
hpet0: at MMIO 0xfed00000, IRQs 2, 8, 0
hpet0: 3 64-bit timers, 14318180 Hz
Using HPET for base-timer
Calibrating delay using timer specific routine.. 4269.71 BogoMIPS (lpj=8539429)
Mount-cache hash table entries: 512
CPU: After generic identify, caps: bfebfbff 20100000 00000000 00000000 0000e3bd 00000000 00000001
monitor/mwait feature present.
using mwait in idle threads.
CPU: L1 I cache: 32K, L1 D cache: 32K
CPU: L2 cache: 2048K
CPU: Physical Processor ID: 0
CPU: Processor Core ID: 0---------------------------------------------------here core#0
CPU: After all inits, caps: bfebfbff 20100000 00000000 00003940 0000e3bd 00000000 00000001
Intel machine check architecture supported.
Intel machine check reporting enabled on CPU#0.
Compat vDSO mapped to ffffe000.
Checking 'hlt' instruction... OK.
Freeing SMP alternatives: 23k freed
ACPI: Core revision 20060707
tbxface-0107 [01] load_tables : ACPI Tables successfully acquired
Parsing all Control Methods:
Table [DSDT](id 0007) - 561 Objects with 75 Devices 164 Methods 25 Regions
Parsing all Control Methods:
Table [SSDT](id 0004) - 5 Objects with 0 Devices 3 Methods 0 Regions
Parsing all Control Methods:
Table [SSDT](id 0005) - 18 Objects with 0 Devices 3 Methods 0 Regions
ACPI Namespace successfully loaded at root c081fcd0
evxfevnt-0089 [02] enable : Transition to ACPI mode successful
CPU0: Intel(R) Core(TM)2 CPU 6400 @ 2.13GHz stepping 02
Booting processor 1/1 eip 2000
Initializing CPU#1-----------------------------------------------here core#1
Calibrating delay using timer specific routine.. 4266.75 BogoMIPS (lpj=8533504)
CPU: After generic identify, caps: bfebfbff 20100000 00000000 00000000 0000e3bd 00000000 00000001
monitor/mwait feature present.
CPU: L1 I cache: 32K, L1 D cache: 32K
CPU: L2 cache: 2048K
CPU: Physical Processor ID: 0
CPU: Processor Core ID: 1-----------------------------------------------here core#1
CPU: After all inits, caps: bfebfbff 20100000 00000000 00003940 0000e3bd 00000000 00000001
Intel machine check architecture supported.
Intel machine check reporting enabled on CPU#1.
CPU1: Intel(R) Core(TM)2 CPU 6400 @ 2.13GHz stepping 02
Total of 2 processors activated (8536.46 BogoMIPS).
ENABLING IO-APIC IRQs
..TIMER: vector=0x31 apic1=0 pin1=2 apic2=-1 pin2=-1
checking TSC synchronization across 2 CPUs: passed.
Brought up 2 CPUs
migration_cost=21
NET: Registered protocol family 16
ACPI: bus type pci registered
PCI: Using MMCONFIG
Setting up standard PCI resources
mtrr: your CPUs had inconsistent variable MTRR settings
mtrr: probably your BIOS does not setup all CPUs.
mtrr: corrected configuration.
evgpeblk-0951 [04] ev_create_gpe_block : GPE 00 to 1F [_GPE] 4 regs on int 0x9
evgpeblk-1048 [03] ev_initialize_gpe_bloc: Found 9 Wake, Enabled 0 Runtime GPEs in this block
Completing Region/Field/Buffer/Package initialization:..................................................................................
Initialized 24/25 Regions 11/11 Fields 17/17 Buffers 30/39 Packages (593 nodes)
Initializing Device/Processor/Thermal objects by executing _INI methods:.
Executed 1 _INI methods requiring 1 _STA executions (examined 81 objects)
ACPI: Interpreter enabled
ACPI: Using IOAPIC for interrupt routing

blackhole54 · 04-23-2007, 07:50 AM

Quote:

Originally Posted by nass

core 2 duo is 2 processors..
shouldn't i see smth about it in the top command?
or are the 12 core's transparent to the OS and the applications...

When in top, the numeral 1 will toggle between displaying the CPU summary at the top of the screen as individual CPUs or combined. I don't know of any way to do it for individual processes.

EDIT: You can add a (per process) field to top's display that shows the last CPU used by each process. I am guessing you can pull detailed info for each process from the /proc file system, but I am not familar with doing that from the normal command line tools.