Re: [PATCH 4/5] genirq/affinity: irq vector spread among online CPUs as far as possible

2018-03-02 Thread Christoph Hellwig
Looks fine, Reviewed-by: Christoph Hellwig

[PATCH 4/5] genirq/affinity: irq vector spread among online CPUs as far as possible

2018-02-06 Thread Ming Lei
84676c1f21 ("genirq/affinity: assign vectors to all possible CPUs") may cause irq vector assigned to all offline CPUs, and this kind of assignment may cause much less irq vectors mapped to online CPUs, and performance may get hurt. For example, in a 8 cores system, 0~3 online, 4~8 offline/not pres