how to measure IRQ service latency

neependra.khare at neependra.khare at
Wed Dec 22 07:28:24 EST 2010

On Wed, Dec 22, 2010 at 5:30 PM, Pradeep Kumar <pradeepkernel at>wrote:

> hi,
>     can any one suggest a way to measure IRQ service latency? .

I believe you can measure it with Ftrace. You might need to use *irqsoff*tracer.
For reference:-

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