On Wed, Feb 03, 2021 at 09:04:05PM +0800, chenshiyan wrote: > Are you working on an architecture that doesn't implement it? > -No, we test it on x86. > > The problem is , when it's doing softirq, but there’s no tick, so we don’t > know how long > It takes. The TOP or some other procs can not show the right value of sirq.
But IRQTIME counting is based on sched_clock() which shouldn't use jiffies in the case in x86. In fact jiffies based sched_clock() isn't suitable for IRQTIME at all. So I don't understand the problem.
