arm64 sched_clock cpu accounting

Mario Smarduch m.smarduch at
Wed Nov 18 11:46:47 PST 2015

  I noticed sched clock accounting can be enabled when arch-timer is
initialized. But arm64 doesn't appear to have 'HAVE_IRQ_TIME_ACCOUNTING'
selected (as of mainline 4.4-rc1) and IRQ_TIME_ACCOUNTING can't be selected.
After adding it to arch/arm64/Kconfig, option appears to work fine. Depending on
need all accounting options are fine, but irq time accounting appears to be most

Any thoughts? Is it fine to enable it?


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