Hi,
It's good to hear that things are more promising now.
The overall IRQ delta over 10 seconds (from your last results of
interrupts_normal_xorg.log) look more promising - IRQ 0 is definitely
not being saturated now, but it does appear that you system is busy
somewhere causing ~7K rescheduling interrupts per second.
CPU0 CPU1
0: 2597 2582 IO-APIC-edge timer
1: 0 0 IO-APIC-edge i8042
8: 4 3 IO-APIC-edge rtc
9: 18 16 IO-APIC-fasteoi acpi
12: 0 0 IO-APIC-edge i8042
14: 0 0 IO-APIC-edge libata
15: 0 0 IO-APIC-edge libata
16: 35 25 IO-APIC-fasteoi uhci_hcd:usb5, nvidia
17: 0 0 IO-APIC-fasteoi uhci_hcd:usb1
18: 0 0 IO-APIC-fasteoi uhci_hcd:usb2
19: 4 4 IO-APIC-fasteoi ehci_hcd:usb3
21: 1 1 IO-APIC-fasteoi ehci_hcd:usb4
22: 0 0 IO-APIC-fasteoi uhci_hcd:usb6, ohci1394, HDA
Intel
23: 0 0 IO-APIC-fasteoi uhci_hcd:usb7
215: 384 410 PCI-MSI-edge iwl4965
216: 14 16 PCI-MSI-edge eth0
217: 3 2 PCI-MSI-edge ahci
NMI: 0 0 Non-maskable interrupts
LOC: 2110 1800 Local timer interrupts
RES: 68628 75310 Rescheduling interrupts
CAL: 0 0 function call interrupts
TLB: 0 6 TLB shootdowns
TRM: 0 0 Thermal event interrupts
SPU: 0 0 Spurious interrupts
ERR: 0
MIS: 0
Running vmstat 1 for ~15-30 seconds will give an idea of how busy the
system is - primarily the context switches/second will be interesting to
see.
Colin
--
Kernel 2.6.24-2 causing ~1000 wakeups by "Rescheduling Interrupts"
https://bugs.launchpad.net/bugs/177895
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