Date: Mon, 24 Apr 2000 02:46:26 -0400 (EDT) From: Lanny Baron <lnb@freedomtc.com> To: Greg Lehey <grog@lemis.com> Cc: questions@FreeBSD.ORG, Lanny Baron <lnb@cybertouch.org> Subject: Re: SMP & RAID Message-ID: <XFMail.000424024626.lnb@freebsdsystems.com> In-Reply-To: <20000424120119.A12676@freebie.lemis.com>
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Hello Greg, Yes sorry it is SMP. Typo. As for what type of application might require multiple cpu's, I would think large database applications. I know for a fact that a certain company with very large database bogs the entire network down for them. They run AIX and have several AS400's. A question then arises as to the claims of company's that sell systems and offer up to 8 CPU's. If FreeBSD cannot utilize the processing power, how can Linux? This Kernel lock you speak of, is there anyway around it? Thank you for the pointer to the URL below. Regards, Lanny On 24-Apr-00 Greg Lehey wrote: > On Sunday, 23 April 2000 at 2:27:42 -0400, Lanny Baron wrote: >> Hello, >> Can I get some information with respect to SNP and how well FreeBSD can >> handle up to 8 processors. > > You mean SMP (symmetrical multiprocessing)? It depends on what you > want to do. The big limitation is the giant kernel lock which only > allows one processor to run in kernel mode at any one time. Depending > on your application, this may make no difference at all, or it may > completely bog it down. > >> Would anyone know what RAID cards are supported. > > Take a look at the release notes, for example > http://www.freebsd.org/releases/4.0R/notes.html. > >> Someone sent me mail saying that only Vinum will work. > > Don't rely on "someone". > > Greg > -- > When replying to this message, please copy the original recipients. > For more information, see http://www.lemis.com/questions.html > Finger grog@lemis.com for PGP public key > See complete headers for address and phone numbers > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-questions" in the body of the message To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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