SMP

["R. Bradley Tilley" <rtilley@vt.edu>]

I have a two processor Dell that's running Debian 3.0 stable. I'm trying to 
determine if Debian is using both CPUs. Here's the first part of dmesg:

Linux version 2.4.18-bf2.4 (root@zombie) (gcc version 2.95.4 20011002 (Debian 
prerelease)) #1 Son Apr 14 09:53:28 CEST 2002
BIOS-provided physical RAM map:
 BIOS-e820: 0000000000000000 - 00000000000a0000 (usable)
 BIOS-e820: 00000000000f0000 - 0000000000100000 (reserved)
 BIOS-e820: 0000000000100000 - 000000002fffe000 (usable)
 BIOS-e820: 000000002fffe000 - 0000000030000000 (reserved)
 BIOS-e820: 00000000fec00000 - 00000000fec10000 (reserved)
 BIOS-e820: 00000000fee00000 - 00000000fee10000 (reserved)
 BIOS-e820: 00000000fff80000 - 0000000100000000 (reserved)
found SMP MP-table at 000fe710
hm, page 000fe000 reserved twice.
hm, page 000ff000 reserved twice.
hm, page 000f0000 reserved twice.
On node 0 totalpages: 196606
zone(0): 4096 pages.
zone(1): 192510 pages.
zone(2): 0 pages.
Intel MultiProcessor Specification v1.4
    Virtual Wire compatibility mode.
OEM ID: DELL     Product ID: POWEREDGE DE APIC at: 0xFEE00000
Processor #1 Pentium(tm) Pro APIC version 17
Processor #0 Pentium(tm) Pro APIC version 17
I/O APIC #2 Version 17 at 0xFEC00000.
Processors: 2
Kernel command line: auto BOOT_IMAGE=Linux ro root=302
Initializing CPU#0
Detected 795.903 MHz processor.
Console: colour VGA+ 80x25
Calibrating delay loop... 1589.24 BogoMIPS
Memory: 770780k/786424k available (1783k kernel code, 15260k reserved, 549k 
data, 280k init, 0k highmem)
Dentry-cache hash table entries: 131072 (order: 8, 1048576 bytes)
Inode-cache hash table entries: 65536 (order: 7, 524288 bytes)
Mount-cache hash table entries: 16384 (order: 5, 131072 bytes)
Buffer-cache hash table entries: 65536 (order: 6, 262144 bytes)
Page-cache hash table entries: 262144 (order: 8, 1048576 bytes)
CPU: Before vendor init, caps: 0383fbff 00000000 00000000, vendor = 0
CPU: L1 I cache: 16K, L1 D cache: 16K
CPU: L2 cache: 256K
CPU: After vendor init, caps: 0383fbff 00000000 00000000 00000000
Intel machine check architecture supported.
Intel machine check reporting enabled on CPU#0.
CPU:     After generic, caps: 0383fbff 00000000 00000000 00000000
CPU:             Common caps: 0383fbff 00000000 00000000 00000000
CPU: Intel Pentium III (Coppermine) stepping 06
Enabling fast FPU save and restore... done.
Enabling unmasked SIMD FPU exception support... done.
Checking 'hlt' instruction... OK.
Checking for popad bug... OK.
POSIX conformance testing by UNIFIX

Is the kernel using both CPUs or not? I can't tell. Is there an easy way to 
tell how many CPUs are in use? TOP doesn't tell.