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    SubjectRe: ACPI vs. APM - Which is better for desktop and why?
    Justin Piszcz wrote:
    > I have enabled ACPI on my Dell GX1 (Pentium 3/500MHZ) machine and
    > disabled APM, however, what are the benefits of using ACPI over APM?
    >
    > I am using Kernel 2.6.7
    >
    > I see ACPI eats up an IRQ and does not share it:
    >
    > $ cat /proc/interrupts
    > CPU0
    > 0: 64997374 XT-PIC timer
    > 1: 10 XT-PIC i8042
    > 2: 0 XT-PIC cascade
    > 5: 2625 XT-PIC Crystal audio controller
    > 8: 1 XT-PIC rtc
    > 9: 0 XT-PIC acpi
    > 10: 277489 XT-PIC ide2
    > 11: 11465050 XT-PIC ide4, ide5, eth0, eth1, eth2, eth3
    > 12: 58 XT-PIC i8042
    > 14: 307536 XT-PIC ide0
    > 15: 53 XT-PIC ide1
    > NMI: 0
    > LOC: 65007290
    > ERR: 0
    > MIS: 0
    >
    Yep, IRQ 11 is a bit crowded...

    I was just about to ask a similar question...
    How do I have a better interrupt table (no or less shared intrerupts) with ACPI?

    My system (just rebooted) says:
    $ cat /proc/interrupts
    CPU0
    0: 1434691 IO-APIC-edge timer
    1: 5158 IO-APIC-edge i8042
    8: 2 IO-APIC-edge rtc
    9: 0 IO-APIC-level acpi
    14: 8097 IO-APIC-edge ide0
    15: 959 IO-APIC-edge ide1
    19: 105118 IO-APIC-level nvidia
    20: 17455 IO-APIC-level ehci_hcd, eth0, NVidia nForce2
    21: 0 IO-APIC-level ohci_hcd
    22: 16156 IO-APIC-level ohci_hcd
    NMI: 0
    LOC: 1434624
    ERR: 0
    MIS: 0

    The "problem" here might be IRQ 20 when I am using my scanner@4800dpi (USB2.0, Epson GT-X700) writing the output via NFS (through eth0). Will test the numbers some other time.

    Kalin.


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