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Date: Mon, 9 Nov 2009 05:57:51 -0500 (EST) From: Justin Piszcz <jpiszcz@...idpixels.com> To: linux-kernel@...r.kernel.org, news@...ronix.com cc: Alan Piszcz <ap@...arrain.com> Subject: Re: Intel DP55KG + Intel Core i7 870 + Phoronix Benchmarks / Turbo Boost On Sun, 8 Nov 2009, Justin Piszcz wrote: > Hello, > > I performed a bunch of tests with my processor to see if Turbo Boost was > working correct, the short answer is, it /appears/ to be.. [ .. ] There is another method to check whether Turbo Boost appears to be working, without ACPI_FREQ/etc, I noticed the none of the cores ever went above ~48-50c for a single threaded application @ 100% CPU. Now, with ACPI_FREQ+NO_HZ, etc, it is evident that the first core is probably in Turbo Boost mode, the application being run also seems to indicate this as it shows a slight increase in performance. $ sensors coretemp-isa-0000 Adapter: ISA adapter Core 0: +57.0M-0C (high = +84.0M-0C, crit = +100.0M-0C) coretemp-isa-0001 Adapter: ISA adapter Core 1: +57.0M-0C (high = +84.0M-0C, crit = +100.0M-0C) coretemp-isa-0002 Adapter: ISA adapter Core 2: +41.0M-0C (high = +84.0M-0C, crit = +100.0M-0C) coretemp-isa-0003 Adapter: ISA adapter Core 3: +41.0M-0C (high = +84.0M-0C, crit = +100.0M-0C) coretemp-isa-0004 Adapter: ISA adapter Core 4: +46.0M-0C (high = +84.0M-0C, crit = +100.0M-0C) coretemp-isa-0005 Adapter: ISA adapter Core 5: +46.0M-0C (high = +84.0M-0C, crit = +100.0M-0C) coretemp-isa-0006 Adapter: ISA adapter Core 6: +41.0M-0C (high = +84.0M-0C, crit = +100.0M-0C) coretemp-isa-0007 Adapter: ISA adapter Core 7: +41.0M-0C (high = +84.0M-0C, crit = +100.0M-0C) Justin. -- 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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