Skip site navigation (1)Skip section navigation (2)
Date:      Sun, 03 Jul 2005 00:37:27 -0000
From:      Takeharu KATO <takeharu1219@ybb.ne.jp>
To:        cokane@cokane.org
Cc:        freebsd-current@freebsd.org, freebsd-amd64@freebsd.org
Subject:   Re: AMD64 Local APIC Timer
Message-ID:  <4221090E.4020401@ybb.ne.jp>
In-Reply-To: <346a80220502260939848bdf6@mail.gmail.com>
References:  <421A4D5D.6040205@ybb.ne.jp> <421B5E3D.60209@ybb.ne.jp> <346a80220502260939848bdf6@mail.gmail.com>

next in thread | previous in thread | raw e-mail | index | archive | help
Hi

Sorry, in fact , my patch has some problem.
If you need local apic timer AMD64 please try
peter wemm'work:

  http://people.freebsd.org/~peter/hammer.diff


> 
> The lapic timer patch seems to break something in the
> timeout(9)/untimeout(9) handling. I have a mobile athlon64 laptop, and
> have been using Fukuda Nobuhiko's acpi_ppc driver for the Cool'n'Quiet
> operation. With your patch applied, this driver no longer scales the
> CPU frequency. It seems to use timeout(9) to have the kernel call a
> polling function regularly to monitor CPU usage and scales the CPU
> speed to match the usage. This helps maintain bettery life.
> 
> The driver is at:
> http://www.spa.is.uec.ac.jp/~nfukuda/software/dist/acpi_ppc-20050210.tgz
> 
> --
> coleman kane


-- 
Takeharu KATO
_______________________________________________
freebsd-current@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-current
To unsubscribe, send any mail to "freebsd-current-unsubscribe@freebsd.org"




Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?4221090E.4020401>