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Message-Id: <20070525145254.febcc9eb.akpm@linux-foundation.org> Date: Fri, 25 May 2007 14:52:54 -0700 From: Andrew Morton <akpm@...ux-foundation.org> To: "J.A. Magallón" <jamagallon@....com> Cc: linux-kernel@...r.kernel.org Subject: Re: idle=poll burns my box [was Re: 2.6.22-rc2-mm1] On Fri, 25 May 2007 23:20:25 +0200 "J.A. Magallón" <jamagallon@....com> wrote: > Is idle=poll a quick and dirty way to burn your box in flames ? yep ;) It makes the CPU(s) busy-wait when they have nothing else to do. It was originally added as a thing to maybe save a few cycles of latency in responding to interrupts. It's now useful as a trick to prevent oprofile from producing confusing numbers. I don't think it has any other uses. - 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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