On Fri, Mar 25, 2011 at 2:21 AM, Sepherosa Ziehau <sepher...@gmail.com> wrote: > This interrupt sharing may caused by interrupt routing in ACPI code. > What's the vmstat -iv on both w/ and w/o ACPI interrupt routing?
Yes they are a bit different. With ACPI interrupt routing: interrupt total rate irq0: clk 9239831 278 irq4: sio0 0 0 irq7: ppc0 1 0 irq9: acpi0/vge0/uhci0/uhci1 33423 1 irq10: ral0/rl0/ehci0 842511 25 irq11: fwohci0/pcm0/rl1/atapci0/uhci2/uhci3 1110368 33 irq14: ata0 37 0 irq15: ata1 0 0 irq19 46 0 irq21 1119024 33 irq192: swi_siopoll 0 0 irq195: swi_cambio 0 0 irq196: swi_vm 0 0 irq197: swi_taskq/swi_mp_taskq 0 0 Total 12345241 371 Without: interrupt total rate irq0: clk 151705 466 irq4: sio0 0 0 irq5: vge0/uhci0/uhci1 40002 123 irq7: ppc0 1 0 irq9: acpi0 0 0 irq10: ral0/rl0/ehci0 9093 27 irq11: fwohci0/pcm0/rl1/atapci0/uhci2/uhci3 2253 6 irq14: ata0 37 0 irq15: ata1 0 0 irq19 46 0 irq21 2271 6 irq192: swi_siopoll 0 0 irq195: swi_cambio 0 0 irq196: swi_vm 0 0 irq197: swi_taskq/swi_mp_taskq 0 0 Total 205408 632 Max