I don't know the answer to this, but as a side-note, there are big differences between how Windows 2000 and Windows 2003 handle HyperThreading: as a result, Windows 2000 boxes with HyperThreading enabled (toggled in the BIOS usually) can suffer performance hits in some circumstances.
It stems, so I understand, from the fact that Windows 2000 isn't able to discriminate between a logical and a physical CPU. Say in a twin physically processored box, it would see four different standalone CPUs. When it comes to allocating threads between processors, it isn't able to balance them between the physical processors, only logical ones - the result can be that a single physical processor can get over loaded whilst another physical processor is relatively scarcely loaded. Windows 2003, on the other hand, is supposedly aware of HyperThreading, and takes the physical processors into account when allocating jobs. I'm not sure how much of an issue this might be with a standalone TSM server, but I've heard of Oracle people moaning about this and turning HyperThreading off. Definitely worth a little research... Anyone any offers on the above? I'd be interested to learn of others' experiences or thoughts, as we too have some Win2K hyperthreaded servers (DL380 G3's) running TSM Server. Rgds, David McClelland Management Systems Integrator Global Management Systems Reuters 85 Fleet Street London EC4P 4AJ E-mail [EMAIL PROTECTED] Reuters Messaging [EMAIL PROTECTED] -----Original Message----- From: Brian L. Nick [mailto:[EMAIL PROTECTED] Sent: 09 October 2003 12:50 To: [EMAIL PROTECTED] Subject: Hyper-threaded CPU's Good morning, Running a TSM 5.x server with the new licensing scheme how does TSM report on hyper-threaded CPU's? We have several of them and are in the process of moving to 5.2 and want to make sure that we are only counting physical CPU's. Anyone have any insight on this. Thanks, Brian Brian L. Nick Systems Technician - Storage Solutions The Phoenix Companies Inc. 100 Bright Meadow Blvd Enfield CT. 06082-1900 E-MAIL: [EMAIL PROTECTED] PHONE: (860)403-2281 ************************************************************************ *********** CONFIDENTIAL: This communication, including attachments, is intended only for the exclusive use of addressee and may contain proprietary, confidential and/or privileged information. If you are not the intended recipient, you are hereby notified that you have received this document in error, and any use, review, copying, disclosure, dissemination or distribution is strictly prohibited. If you are not the intended recipient, please notify the sender immediately by return e-mail, delete this communication and destroy any and all copies of this communication. ************************************************************************ *********** -------------------------------------------------------------- -- Visit our Internet site at http://www.reuters.com Get closer to the financial markets with Reuters Messaging - for more information and to register, visit http://www.reuters.com/messaging Any views expressed in this message are those of the individual sender, except where the sender specifically states them to be the views of Reuters Ltd.
