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Open Source and information security mailing list archives
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Date: Mon, 3 Nov 2008 11:59:52 -0800 From: Arjan van de Ven <arjan@...ux.intel.com> To: Chris Snook <csnook@...hat.com> Cc: Linux Kernel <linux-kernel@...r.kernel.org> Subject: Re: logging server C-state time? On Mon, 03 Nov 2008 14:47:52 -0500 Chris Snook <csnook@...hat.com> wrote: > Hey folks -- > > I'm interested in logging the amount of time that server CPUs spend > in various C-states over the course of a complicated job, ideally in > a manner I could sync up with output from sysstat tools. So far all > the tools I've seen for power monitoring seem to be targeted to > laptops and interactive use, but I'm looking for something that's > scriptable and doesn't need ACPI battery information, even if that > means relying on indirect measurements of power use like C-states. > Any suggestions? powertop gives you the C state information accumulated over time... just look at the code how it does that ;) -- Arjan van de Ven Intel Open Source Technology Centre For development, discussion and tips for power savings, visit http://www.lesswatts.org -- 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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