Re: SMP

[Marco Antonio Vieira Assad <marcova@mg.trt.gov.br>]

I have an Acer using two processors and Debian 3.0, but I'm using kernel 
2.2.19 which I compiled for SMP, not 2.4.18 like you. As far as I know, you 
can see if it's using both processors by checking /proc/cpuinfo. If the two 
processors are listed there, I understand that they are beeing used. But 
debian doesn't have "top" and "ps" versions for SMP, so you can't really know 
in detail what's going on. 

Ahm, and it seems to be pretty stable.

Citando "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.
> 
> 
> 
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