On Tue, 2016-07-05 at 16:02 +0300, Nikolay Borisov wrote: > > On 06/30/2016 10:35 PM, r...@redhat.com wrote: > > Currently irq time accounting only works in these cases: > > 1) purely ticke based accounting > > 2) nohz_full accounting, but only on housekeeping & nohz_full CPUs > > 3) architectures with native vtime accounting > > > > On nohz_idle CPUs, which are probably the majority nowadays, > > irq time accounting is currently broken. This leads to systems > > reporting a dramatically lower amount of irq & softirq time than > > is actually spent handling them, with all the time spent while the > > system is in the idle task being accounted as idle. > > Is this supposed to alleviate the issue reported here: > http://www.gossamer-threads.com/lists/linux/kernel/2169180
Indeed, it is. -- All Rights Reversed.
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