On slightly diff note, does opensolaris b78 support power management of Intel Core2 Duo processors (Intel Centrino) ?
On Jan 11, 2008 5:47 AM, Mark Haywood <[EMAIL PROTECTED]> wrote: > I'm fairly certain that the Turion X2 and the Athlon X2 6000+ are both > K8 based which means Solaris is not able to power manage them. The > Athlon X2 6-series that I referred to are (from what I've read) a > rebranding of the Phenom X2. That might have changed. The bottom line is > that Solaris does not support CPU power managem78 ent of K8 based > processors, but does support CPU power management of K10 based processors. > > Mark > > list.serv.address wrote: > > Mark, > > Thanks for the information. Do you have any information about the > > Turion X2? Are the TL-60 and up going to have the fix? I assume that > > the Athlon X2 6000+ and up will have the fix. Thanks. > > > > -LSA > > > > > > Mark Haywood wrote: > > > >> list.serv.address wrote: > >> > >>> On the topic, > >>> Does anyone know if the new Phenom (Quad core AMD brand) chips > >>> will have the same power stepping issues as the X2 AMD chips do? Are > >>> any of the newer AMD X2 chip revisions going to fix this issue? > >>> > >> The Phenom Quad-Core processors are based on the K10 microarchitecture > >> (also known as Family 10h Processors) and should not have the TSC > issues > >> found with K8 (Family 0Fh Processors). I believe that the Athlon X2 > >> 6-series will be K10 based. Power management support for K10 processors > >> integrated into Nevada build 80. > >> > >> Mark > >> > >> > >>> There is an issue with the AMDs TSC register that won't be fixed > >>> in the current generation of chips. So, the general suggestion was to > >>> stay away from purchasing the current AMD X2 procesors since they will > >>> probably never support power management. The Intels are the ones that > >>> are getting the attention with regards to power management, since, if > >>> I understand the issue correctly, they do not have the problem. If > >>> the newer AMD X2 chips fix this, the story may change. See Casper's > >>> response attached. > >>> > >>> -LSA > >>> > >>> Attached: Casper's message on 06/13/2007 09:58 AM > >>> > >>> > >any ideas if in the future we could see powernowd supporting AMD > >>> X2 or Opteron dual core systems ? > >>> > >>> > >>> "Never" would be my best guess, for current hardware. > >>> > >>> The reason is that Solaris is heavily dependent on the TSC register > >>> and expects the value of different CPUs to be in sync to a certain > >>> degree (fixed difference). > >>> > >>> Unfortunately, with the current Dual Core AMD CPUs, the TSC register > >>> varies with the clock frequencies; you can see in the current powernow > >>> code that it goes through some pretty hairy loops to "make it right" > >>> (much to the chagrin of DTrace which bypasses the standard calls and > >>> can't be "made right" using a loadable kernel module) > >>> > >>> Solaris will shortly support clock switching on Intel Core-duo CPUs; > >>> but no clock switching at all on AMD CPUs until newer CPUs are out. > >>> > >>> Casper > >>> _______________________________________________ > >>> laptop-discuss mailing list > >>> [EMAIL PROTECTED] > >>> > >>> > >>> > >>> ken mays wrote: > >>> > >>>> By the way, > >>>> > >>>> I should mention the newer 3-GHz Intel X6850 quad-processor before > >>>> the sun goes down on my little part of the world. That may be the > >>>> current contender for the AMD Phenom. > >>>> > >>>> ~ Ken > >>>> > >>>> > >>>> > >>>> ----- Original Message ---- > >>>> From: ken mays <[EMAIL PROTECTED]> > >>>> To: Dennis Clarke <[EMAIL PROTECTED]>; Andrew Watkins > >>>> <[EMAIL PROTECTED]> > >>>> Cc: opensolaris-discuss@opensolaris.org > >>>> Sent: Wednesday, October 24, 2007 6:40:56 PM > >>>> Subject: Re: [osol-discuss] Will OpenSolaris work on a intel desktop > >>>> Quad processor > >>>> > >>>> Dennis, > >>>> > >>>> The 8-core single processor market dominates. You also have the new > >>>> Quad-core AMD Phenom which will be officially out soon and the Intel > >>>> Q6700 processor. A dual Quad-Core processor server will be a very > >>>> nice machine for someone with the use. > >>>> > >>>> As my wallet bursts into flames, I'd look into those Quad processors > >>>> for commodity sake... > >>>> > >>>> ~ Ken > >>>> > >>>> ----- Original Message ---- > >>>> From: Dennis Clarke <[EMAIL PROTECTED]> > >>>> To: Andrew Watkins <[EMAIL PROTECTED]> > >>>> Cc: opensolaris-discuss@opensolaris.org > >>>> Sent: Wednesday, October 24, 2007 9:37:27 AM > >>>> Subject: Re: [osol-discuss] Will OpenSolaris work on a intel desktop > >>>> Quad processor > >>>> > >>>> > >>>> > >>>>> I am finally biting the bullet and ditching my work machine - a 9 > year > >>>>> old Ultra 10 - for a new system I thought I would go for the fastest > >>>>> cpu > >>>>> on the market. > >>>>> > >>>> At the risk of getting into endless loops of debates about "fast" I > just > >>>> have to ask why you think that is the fastest processor in the > market? > >>>> > >>>> When you get it .. run the Radiance benchmark which is heavy number > >>>> crunching and then we shall see. Thus far no one and nothing can > >>>> touch an > >>>> AMD Opteron running Solaris 10. > >>>> > >>>> see : http://www.blastwave.org/articles/BLS-0059/index.html > >>>> > >>>> > >>>> Dennis > >>>> > >>>> _______________________________________________ > >>>> opensolaris-discuss mailing list > >>>> opensolaris-discuss@opensolaris.org > >>>> > >>>> __________________________________________________ > >>>> Do You Yahoo!? > >>>> Tired of spam? Yahoo! Mail has the best spam protection around > >>>> http://mail.yahoo.com _______________________________________________ > >>>> opensolaris-discuss mailing list > >>>> opensolaris-discuss@opensolaris.org > >>>> > >>>> __________________________________________________ > >>>> Do You Yahoo!? > >>>> Tired of spam? Yahoo! Mail has the best spam protection around > >>>> http://mail.yahoo.com _______________________________________________ > >>>> opensolaris-discuss mailing list > >>>> opensolaris-discuss@opensolaris.org > >>>> > >>>> > >>> _______________________________________________ > >>> opensolaris-discuss mailing list > >>> opensolaris-discuss@opensolaris.org > >>> > >> > > > > _______________________________________________ > > opensolaris-discuss mailing list > > opensolaris-discuss@opensolaris.org > > > > _______________________________________________ > opensolaris-discuss mailing list > opensolaris-discuss@opensolaris.org > -- Warm Regards, Manish Chakravarty ---- Associate Software Developer Spike Source +919980250606 ---
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