Re: [PATCH] powerpc/time: enable sched clock for irqtime

On Thu, 22 Oct 2020 14:51:19 +0800, Pingfan Liu wrote: > When CONFIG_IRQ_TIME_ACCOUNTING and CONFIG_VIRT_CPU_ACCOUNTING_GEN, powerpc > does not enable "sched_clock_irqtime" and can not utilize irq time > accounting. > > Like x86, powerpc does not use the sched_clock_register() interface. So it >

Re: [PATCH] powerpc/time: enable sched clock for irqtime

I encounter a irq flood on Power9 machine, and tries a way to work around it by https://www.spinics.net/lists/kernel/msg3705028.html As irq time accounting is the foundation for the method, it needs to make irq accounting take effect on powerpc platform. On Thu, Oct 22, 2020 at 2:51 PM Pingfan

[PATCH] powerpc/time: enable sched clock for irqtime

When CONFIG_IRQ_TIME_ACCOUNTING and CONFIG_VIRT_CPU_ACCOUNTING_GEN, powerpc does not enable "sched_clock_irqtime" and can not utilize irq time accounting. Like x86, powerpc does not use the sched_clock_register() interface. So it needs an dedicated call to enable_sched_clock_irqtime() to enable