SMP a preruseni

[Miroslav Petricek]

marek cervenka wrote:
> 
> zdravim,
> 
> chtel bych se zeptat na nasledujici vec:
> pokud mam server, ktery je hodne zatezovany I/O, tudiz je hodne pozadavku
> na presuseni
> pokud do serveru pridam druhy procesor rozlozi se pozadavky na preruseni
> na oba procesory?

Ano. Prikladam vypis /proc/interrupts ze SMP stroje. Pokud nenabootuji
SMP kernel s volbou noapic, tak si procesory pomerne linearne predavaji
preruseni ke zpracovani.

[mpe na elvis mpe]$ cat /proc/interrupts
           CPU0       CPU1    
  0:     234367     233892    IO-APIC-edge  timer
  1:       1903       1914    IO-APIC-edge  keyboard
  2:          0          0          XT-PIC  cascade
  4:       8626       8347    IO-APIC-edge  serial
  7:          0          1    IO-APIC-edge  soundblaster
  8:          1          0    IO-APIC-edge  rtc
 13:          1          0          XT-PIC  fpu
 14:     220753     229648    IO-APIC-edge  ide0
 15:          7          5    IO-APIC-edge  ide1
 17:        340        347   IO-APIC-level  eth0
NMI:          0
ERR:          0

-- 
/*    ____________________________________________________
      |   Miroslav Petricek             mpe na stavos.cz    |
      |   Brno, Czech Rep.              ICQ: 56183467    |
      |-- http://www.stavos.cz/mpe/  --------------------|
      | The instructions said: "Windows 2000 or better," |
      |     so I installed Linux.                        |
      |__________________________________________________|    */