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Re: ACPI based interrupt routing and new ACPI code ready for testing


From: Max Herrgard <herrgard@xxxxxxxxx>
Date: Mon, 04 Apr 2011 12:02:10 +0200

Sepherosa Ziehau wrote:
On Fri, Mar 25, 2011 at 7:32 PM, Max Herrgard<herrgard@gmail.com> wrote:
On Fri, Mar 25, 2011 at 2:21 AM, Sepherosa Ziehau<sepherosa@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.

OK, please test following commit on master: 40ad81aa20e2ba47db1f04204a60ffd06b513150

Nope. Still the same, but they are now on different irqs. I noticed however that my drm0 doesn't get set up with acpi interrupt routing turned on.


With acpi interrupt routing:
interrupt						total	rate
irq0: clk						31844	248
irq4: sio0						0	0
irq7: ppc0						1	0
irq9: acpi0						0	0
irq10: ral0/rl0/vge0/ehci0				7536	58
irq11: fwohci0/pcm0/rl1/atapci0/uhci0/uhci1/uhci2/uhci3	9982	77
irq14: ata0						37	0
irq15: ata1						0	0
irq19							46	0
irq21							6525	50
irq192: swi_siopoll					0	0
irq195: swi_cambio					0	0
irq196: swi_vm						0	0
irq197: swi_taskq/swi_mp_taskq				0	0
Total							55971	437

Without:
interrupt                                          total       rate
irq0: clk                                         331584        331
irq4: sio0                                             0          0
irq5: vge0/uhci0/uhci1/drm0                        55565         55
irq7: ppc0                                             0          0
irq9: acpi0                                            0          0
irq10: ral0/rl0/ehci0                              20317         20
irq11: fwohci0/pcm0/rl1/atapci0/uhci2/uhci3         3386          3
irq14: ata0                                           37          0
irq15: ata1                                            0          0
irq19                                                 46          0
irq21                                               3472          3
irq192: swi_siopoll                                    0          0
irq195: swi_cambio                                     0          0
irq196: swi_vm                                         0          0
irq197: swi_taskq/swi_mp_taskq                         0          0
Total                                             414407        413


Max




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