RE: [genirq] cbe16f35be: will-it-scale.per_thread_ops -5.2% regression

From: Thomas Gleixner
Date: Tue Apr 27 2021 - 07:38:12 EST


On Tue, Apr 27 2021 at 09:20, Song Bao Hua wrote:
>> FYI, we noticed a -5.2% regression of will-it-scale.per_thread_ops due to
>> commit:
>>
>>
>> commit: cbe16f35bee6880becca6f20d2ebf6b457148552 ("genirq: Add IRQF_NO_AUTOEN
>> for request_irq/nmi()")
>> https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master
>>
>
> Might be relevant. Can't figure out the relation between getppid and
> request_irq().

Me neither ...