Date: Mon, 8 Mar 2010 16:40:09 GMT From: Dan Naumov <dan.naumov@gmail.com> To: freebsd-amd64@FreeBSD.org Subject: Re: amd64/144551: ACPI issues on SuperMicro X7SPA-H Message-ID: <201003081640.o28Ge9AA060364@freefall.freebsd.org>
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The following reply was made to PR amd64/144551; it has been noted by GNATS. From: Dan Naumov <dan.naumov@gmail.com> To: bug-followup@freebsd.org Cc: Subject: Re: amd64/144551: ACPI issues on SuperMicro X7SPA-H Date: Mon, 8 Mar 2010 18:39:04 +0200 OK, now I feel a bit stupid. The second half of my PR (anything related to powerd behaviour) can be ignored. For testing purposes, I started powerd in the foreground and observed it's behaviour. It works exactly as advertised and apparently the very act of issuing a "sysctl -a | grep dev.cpu.0.freq" command uses up a high % of CPU time for a fraction of a second, resulting in confusing output, I was always getting the highest cpu frequency state as the output. Testing powerd in foreground however, shows correct behaviour, CPU is downclocked both before and after issuing that command :) Still doesn't explain why the system boots up at 1249 Mhz, but that's not that big of an issue at this point now I see that powerd is behaving correctly. - Sincerely, Dan Naumov
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