Re: [RFC PATCH] Turn off the tick even when not idle

From: Anton Blanchard
Date: Thu Sep 03 2009 - 01:20:14 EST

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Hi Josh,

> The following patch (not for application any time soon) hacks away the
> timer interrupt even when not idle, by triggering the nohz mechanism
> even if not running the idle task.

Nice :) I tested it on a ppc64 box, and threw the graphs up here:

http://ozlabs.org/~anton/linux/osjitter/

With the patch applied, we saw only one interruption in the 10 second window
I measured.

Anton
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Next message: Luis R. Rodriguez: "[PATCH v2 0/5] kmemleak: few small cleanups and clear command support"
Previous message: Paul E. McKenney: "Re: tree rcu: call_rcu scalability problem?"
In reply to: Josh Triplett: "Re: [RFC PATCH] Turn off the tick even when not idle"
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