Re: clocksource_watchdog causing scheduling of timers every second (was [v13] support "task_isolation" mode)
From: Frederic Weisbecker <hidden>
Date: 2016-08-12 14:26:20
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On Fri, Aug 12, 2016 at 09:23:13AM -0500, Christoph Lameter wrote:
On Thu, 11 Aug 2016, Paul E. McKenney wrote:quoted
Heh! The only really good idea is for clocks to be reliably in sync. But if they go out of sync, what do you want to do instead?For a NOHZ task? Write a message to the syslog and reenable tick.
Indeed, a strong clocksource is a requirement for a full tickless machine.