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Message-ID: <4899202B.6030303@qualcomm.com> Date: Tue, 05 Aug 2008 20:53:15 -0700 From: Max Krasnyansky <maxk@...lcomm.com> To: Paul Jackson <pj@....com> CC: mingo@...e.hu, linux-kernel@...r.kernel.org, menage@...gle.com, a.p.zijlstra@...llo.nl, vegard.nossum@...il.com, lizf@...fujitsu.com Subject: Re: [PATCH] cpuset: Rework sched domains and CPU hotplug handling (2.6.27-rc1) Paul Jackson wrote: > Max wrote: >> But it does seem like an overkill to schedule a workqueue ... > > "overkill" -- by what metric? > > If something is overkill, it means something is excessive. > Excess (and deficiency) occur along some scale, some metric. > > If not by CPU cycles, then by what metric is it overkill? > Paul, I think you're focusing on the wrong part of my reply ;-). You are, of course, correct about the overkill metric. I was saying that saving cycles in that path was not my goal when I wrote the patch. I just added necessary functions to make existing paths work they way they currently do and only changed one path because it had to change due to lock nesting issues. Along the way simply pointed it out that scheduling work unnecessarily does seem less efficient. That was not the important part though :) Max -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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