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SubjectRe: arch/i386/Kconfig: CONFIG_IRQBALANCE Description
>>>>> "Miquel" == Miquel van Smoorenburg <miquels@cistron.nl> writes:

Miquel> In article <16480.28882.388997.71072@gargle.gargle.HOWL>,
Miquel> John Stoffel <stoffel@lucent.com> wrote:
>>
>> And hey, under 2.6.5-rc2-mm1, it doens't seem to do anything:
>>
>> > zcat /proc/config.gz | grep IRQ
>> CONFIG_IRQBALANCE=y
>> CONFIG_IDEPCI_SHARE_IRQ=y
>>
>> > cat /proc/interrupts
>> CPU0 CPU1
>> 0: 46272316 487 IO-APIC-edge timer
>> 1: 376 0 IO-APIC-edge i8042
>> 16: 46770 3 IO-APIC-level ide2, ide3, ehci_hcd
>> 17: 307832 1 IO-APIC-level eth0
>> 18: 118258 1 IO-APIC-level aic7xxx, aic7xxx, ohci_hcd
>> LOC: 46279245 46279281

Miquel> Is that real SMP, or hyperthreading? If it's hyperthreading,
Miquel> then it makes sense that the IRQs are not balanced.

It's dual Xeon PIII 550mhz, in a Dell Precision 610MT workstation.
Intel GX chipset. None of that fancy HT stuff here!

> cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 7
model name : Pentium III (Katmai)
stepping : 3
cpu MHz : 547.343
cache size : 512 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 2
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse
bogomips : 1077.24

processor : 1
vendor_id : GenuineIntel
cpu family : 6
model : 7
model name : Pentium III (Katmai)
stepping : 3
cpu MHz : 547.343
cache size : 512 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 2
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse
bogomips : 1093.63

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