Public bug reported:
Hello,
I noticed that interrupts for my PC are unbalanced, and I blame poor
performance on that. If there's another place I should report the bug, please
redirect.
Here's an output of /proc/interrupts
CPU0 CPU1
0: 48158701 0 IO-APIC-edge timer
1: 139327 0 IO-APIC-edge i8042
7: 0 0 IO-APIC-edge parport0
8: 3 0 IO-APIC-edge rtc
9: 1 0 IO-APIC-level acpi
14: 886587 0 IO-APIC-edge ide0
50: 1354439 0 IO-APIC-level uhci_hcd:usb1, ehci_hcd:usb5
58: 1606339 0 IO-APIC-level eth1
66: 1033814 0 IO-APIC-level HDA Intel
169: 19382143 0 IO-APIC-level uhci_hcd:usb4, nvidia
185: 0 0 IO-APIC-level uhci_hcd:usb3
193: 38405677 0 IO-APIC-level libata, uhci_hcd:usb2
NMI: 0 0
LOC: 48157199 48157198
ERR: 0
MIS: 0
I tried .17 kernel and rolled out my own .18, same thing.
I have D946GZIS Intel board and this output of cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 15
model name : Intel(R) Core(TM)2 CPU 6300 @ 1.86GHz
stepping : 6
cpu MHz : 1865.103
cache size : 2048 KB
physical id : 0
siblings : 1
core id : 255
cpu cores : 1
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 10
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov
pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx lm pni monitor
ds_cpl vmx est tm2 cx16 xtpr lahf_lm
bogomips : 3200.43
processor : 1
vendor_id : GenuineIntel
cpu family : 6
model : 15
model name : Intel(R) Core(TM)2 CPU 6300 @ 1.86GHz
stepping : 6
cpu MHz : 1865.103
cache size : 2048 KB
physical id : 1
siblings : 1
core id : 255
cpu cores : 1
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 10
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov
pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx lm pni monitor
ds_cpl vmx est tm2 cx16 xtpr lahf_lm
bogomips : 3200.43
** Affects: linux-source-2.6.15 (Ubuntu)
Importance: Undecided
Status: Unconfirmed
--
Unbalanced interrupts for Core 2 Duo
https://launchpad.net/bugs/73930
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