On 2020/8/22 19:35, Thomas Gleixner wrote:
> On Sat, Aug 22 2020 at 17:33, Yunfeng Ye wrote:
>> On 2020/8/13 16:27, Thomas Gleixner wrote:
>> For example, the cmdline "irqaffinity=0,1,126,127" on the 128 cores system:
>>
>> [root@localhost ~]# cat /proc/irq/4/smp_affinity_list
>> 0-1,126-127
>>
On Sat, Aug 22 2020 at 17:33, Yunfeng Ye wrote:
> On 2020/8/13 16:27, Thomas Gleixner wrote:
> For example, the cmdline "irqaffinity=0,1,126,127" on the 128 cores system:
>
> [root@localhost ~]# cat /proc/irq/4/smp_affinity_list
> 0-1,126-127
>
> The irq 4 is "arch_timer" interrupt, which is a perc
On 2020/8/13 16:27, Thomas Gleixner wrote:
> Yunfeng Ye writes:
>
>> When the "affinity=" cmdline parameter is configured,
>
> There is no such parameter.
>
>> the interrupt affinity displayed in the proc directory does not match
>> with that of the the percu interrupt, and the percu interru
Yunfeng Ye writes:
> When the "affinity=" cmdline parameter is configured,
There is no such parameter.
> the interrupt affinity displayed in the proc directory does not match
> with that of the the percu interrupt, and the percu interrupt uses
> desc->percu_affinity.
And when the non-existing
When the "affinity=" cmdline parameter is configured, the interrupt
affinity displayed in the proc directory does not match with that of the
the percu interrupt, and the percu interrupt uses desc->percu_affinity.
So show desc->percu_affinity in show_irq_affinity() for percpu
interrupt.
Signed-off
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