[Bug 429036] Re: core i7 i5 (Lynnfield) turbo boost not working

Bacchus r_ehmann at hotmail.com
Sun Mar 14 00:28:25 UTC 2010


-If you are using a windows 7 host, Ubuntu won't care about TB.  Windows
7 will manage everything just fine. In fact, you could run good 'ol MS-
DOS 5.0 in VBox and turbo boost will work on in your VM.

-Here is an easy way to find out if turbo-boost is actually working (in
a real world scenario)...

sudo apt-get install hardinfo && hardinfo

Run CPU N-Queens.  The result for my turbo-boosted (properly working 2.6.32 kernel) is about 0.88 sec.
When I run CPU N-Queens on the "stock" 2.6.31 Kernel the result is over 2 seconds.
(N-Queens is a single threaded benchmark).

(A new menu entry should show up under "System Tools" called "System
Profiler and Benchmark".  (Just in-case you would like to re-run the
program in the future.))

Just as a reference, I have an I720 1.6 GHz; 2.8 w/ Turbo.

-- 
core i7 i5 (Lynnfield) turbo boost not working
https://bugs.launchpad.net/bugs/429036
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