I apologize in advance if this response is out of context, I seem to have lost the rest of this thread..
We actually do this for a number of our oldest servers.. (2 way virtual) on single IFL.. This dates way back to some Marist Distro prior to SLES7...We found a discussion thread that talked about how there were certain multi-threaded function calls that wouldn't be accessed unless they found 2 cpu's (maybe with DB2/UDB can't remember now)..anyways when we first did the testing the side by side was nearly identical so we went with the two.. under the "didn't hurt might help" guideline.. Don't really know how applicable that multi-threaded thing is anymore, but we haven't seen any reason for us to kick it down so far.. (i.e. due to lock contention, etc..) ----------------------------------- Jeremy Warren Sr. Systems Programmer KB Toy Stores mailto:[EMAIL PROTECTED]@kbtoys.com Bill Bitner <[EMAIL PROTECTED]> Sent by: Linux on 390 Port <[email protected]> 01/04/2005 08:58 AM Please respond to Linux on 390 Port To: [email protected] cc: Subject: Re: [LINUX-390] Domino on LINUX/VM Doug, that's an interesting idea to run a virtual 2-way on the single IFL. I never thought of that. It is, as you say, against conventional wisdom, but this job is full of exceptions. I could see some challenges in terms of lock contention, though this might be a case where Linux use of Diagnose x'44' actually is of benefit. I expect the trade off is slightly worse performance for all commands all the time, but a new safety net to avoid lock outs from long running tasks. I would be very interested in hearing what you see. Bill Bitner - VM Performance Evaluation - IBM Endicott - 607-429-3286 ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
